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to appear 2010

Havemann, S., Ullrich, T. & Fellner, D., Maybury, M. (ed.) (to appear 2010), "The Meaning of Shape and Some Techniques to Extract It", Multimedia Information Extraction, AAAI/MIT Press.
BibTeX:
@incollection{Havemann*10mmie,
  author = {Sven Havemann and Torsten Ullrich and Dieter Fellner},
  editor = {Mark Maybury},
  title = {The Meaning of Shape and Some Techniques to Extract It},
  booktitle = {Multimedia Information Extraction},
  publisher = {AAAI/MIT Press},
  year = {to appear 2010}
}
Havemann, S., Baker, D., Bentkowska-Kafel, A. & Denard, H. (ed.) (to appear 2010), "Intricacies and Potentials of Collecting Paradata in the 3D Modelling Workflow", Paradata. Intellectual Transparency in Historical Visualization, Ashgate.
BibTeX:
@incollection{Havemann10paradata,
  author = {Sven Havemann},
  editor = {Drew Baker and Anna Bentkowska-Kafel and Hugh Denard},
  title = {Intricacies and Potentials of Collecting Paradata in the 3D Modelling Workflow},
  booktitle = {Paradata. Intellectual Transparency in Historical Visualization},
  publisher = {Ashgate},
  year = {to appear 2010}
}

2010

Hofmann, C., Boettcher, U. & Fellner, D.W., (2010), "Change Awareness for Collaborative Video Annotation", Proceedings COOP 2010, Springer.
BibTeX:
@inproceedings{Hofmann*10coop,
  author = {C. Hofmann and U. Boettcher and D.~W. Fellner},
  title = {Change Awareness for Collaborative Video Annotation},
  booktitle = {Proceedings COOP 2010},
  publisher = {Springer},
  year = {2010},
  note = {to appear}
}
Hofmann, C. & Fellner, D.W., (2010), "Supporting Collaborative Workflows of Digital Multimedia Annotation", Proceedings COOP 2010, Springer.
BibTeX:
@inproceedings{Hofmann-Fellner10coop,
  author = {C. Hofmann and D.~W. Fellner},
  title = {Supporting Collaborative Workflows of Digital Multimedia Annotation},
  booktitle = {Proceedings COOP 2010},
  publisher = {Springer},
  year = {2010},
  note = {to appear}
}
Ullrich, T., Schiefer, A. & Fellner, D.W., (2010), "Modeling with Subdivision Surfaces", Proceeding of the 18th WSCG International Conference on Computer Graphics, Visualization and Computer Vision, pp.to appear.
BibTeX:
@article{Ullrich*10wscg,
  author = {Ullrich, Torsten and Schiefer, Andreas and Fellner, Dieter W.},
  title = {Modeling with Subdivision Surfaces},
  journal = {Proceeding of the 18th WSCG International Conference on Computer Graphics, Visualization and Computer Vision},
  year = {2010},
  pages = {to appear}
}
Ullrich, T., Schinko, C. & Fellner, D.W., (2010), "Procedural Modeling in Theory and Practice", Proceeding of the 18th WSCG International Conference on Computer Graphics, Visualization and Computer Vision, pp.to appear.
BibTeX:
@article{Ullrich*10wscg2,
  author = {Ullrich, Torsten and Schinko, Christoph and Fellner, Dieter W.},
  title = {Procedural Modeling in Theory and Practice},
  journal = {Proceeding of the 18th WSCG International Conference on Computer Graphics, Visualization and Computer Vision},
  year = {2010},
  pages = {to appear}
}
Ullrich, T. & Fellner, D.W., (2010), "Linear Algorithms in Sublinear Time -- a tutorial on statistical estimation", IEEE Computer Graphics and Applications, pp.to appear.
BibTeX:
@article{Ullrich-Fellner10cga,
  author = {Ullrich, Torsten and Fellner, Dieter W.},
  title = {Linear Algorithms in Sublinear Time -- a tutorial on statistical estimation},
  journal = {IEEE Computer Graphics and Applications},
  year = {2010},
  pages = {to appear}
}

2009

Bein, M., Havemann, S., Stork, A. & Fellner, D.W., Grimm, C. & LaViola, J. (ed.) (2009), "Sketching Subdivision Surfaces", Proc. 6th Eurographics Symposium on Sketch-Based Interfaces and Modeling 2009, pp.61-68, ACM SIGGRAPH.
Abstract: We describe a 3D modeling system that combines subdivision surfaces with sketch-based modeling in order to meet two conflicting goals: ease of use and fine-grained shape control. For the excellent control, low-poly modeling is still the method of choice for creating high-quality 3D models, e.g., in the games industry. However, direct mesh editing can be very tedious and time consuming. Our idea is to include also stroke-based techniques for rapidly modeling regular surface parts. We propose a simple and efficient algorithm for converting a 2D stroke to a control polygon suitable for Catmull/Clark subdivision surfaces. We have realized a small but reasonably rich set of interactive modeling tools to assess the expressiveness of stroke-based mesh design with a number of examples.
BibTeX:
@inproceedings{Bein*09sbim,
  author = {M. Bein and S. Havemann and A. Stork and D.~W. Fellner},
  editor = {C. Grimm and J. LaViola},
  title = {Sketching Subdivision Surfaces},
  booktitle = {Proc. 6th Eurographics Symposium on Sketch-Based Interfaces and Modeling 2009},
  publisher = {ACM SIGGRAPH},
  year = {2009},
  pages = {61--68}
}
Berndt, R., Blümel, I., Krottmaier, H., Wessel, R. & Schreck, T., (2009), "Demonstration of User Interfaces for Querying in 3D Architectural Content in PROBADO 3D", Research and Advanced Technology for Digital Libraries, pp.491-492.
Abstract: The PROBADO project is a research effort to develop Digital Library support for non-textual documents. The main goal is to contribute to all parts of the Digital Library workflow from content acquisition over semi-automatic indexing to search and presentation. PROBADO3D is a part of the PROBADO framework designed to support 3D documents, with a focus on the Architectural domain. This demonstration will present a set of specialized user interfaces that were developed for content-based querying in this document domain.
BibTeX:
@inproceedings{Berndt*09,
  author = {Berndt, Rene and Blümel, Ina and Krottmaier, Harald and Wessel, Raoul and Schreck, Tobias},
  title = {Demonstration of User Interfaces for Querying in 3D Architectural Content in PROBADO 3D},
  booktitle = {Research and Advanced Technology for Digital Libraries},
  year = {2009},
  pages = {491-492}
}
Berndt, R., Krottmaier, H., Havemann, S. & Schreck, T., (2009), "The PROBADO-Framework: Content-based Queries for Non-textual Documents", ELPUB 2009: 13th International Conference on Electronic Publishing, pp.17.
Abstract: In this paper we describe the system architecture of PROBADO, a project funded by the German Research Foundation (DFG). Its main goal is to provide a general library infrastructure for dealing with non-textual documents, in particular for content-based searching. PROBADO provides an infrastructure that allows integrating existing data repositories and content-based search engines into one common framework. The system architecture has three layers interconnected by a service-oriented architecture (SOA) currently using SOAP 1.1 as the communication protocol. The layers are: [1] a front-end layer, responsible for providing the user interface [2], a core layer, responsible for scheduling requests from the interface to different repositories, and [3] a repository wrapper layer, responsible for enabling existing repositories and search engines to interface to the system. The functionality of each layer is described in detail. The general architecture is complemented by a brief introduction to the domain-dependent functionality currently provided.
BibTeX:
@inproceedings{Berndt*09elpub,
  author = {Berndt, Rene and Krottmaier, Harald and Havemann, Sven and Schreck, Tobias},
  title = {The PROBADO-Framework: Content-based Queries for Non-textual Documents},
  booktitle = {ELPUB 2009: 13th International Conference on Electronic Publishing},
  year = {2009},
  pages = {17}
}
Berndt, R., Havemann, S. & Fellner, D.W., Spencer, S.N. (ed.) (2009), "3D Modeling in a Web Browser to Formulate Content-Based 3D Queries", Proceedings of the 14th International Conference on 3D Web Technology (Web3D 2009), pp.111-118, ACM Press.
Abstract: We present a framework for formulating domain-dependent 3D search queries suitable for content-based 3D search over the web. Users are typically not willing to spend much time to create a 3D query object. They expect to quickly see a result set in which they can navigate by further differentiating the query object. Our system innovates by using a streamlined parametric 3D modeling engine on both client and server side. Parametric tools have greater expressiveness, they allow shape manipulation through a few highlevel parameters, as well as incremental assembly of query objects. Short command strings are sent from client to server to keep the query objects on both sides in sync. This reduces turnaround times and allows asynchronous updates of live result sets.
BibTeX:
@inproceedings{Berndt*09web3d,
  author = {Rene Berndt and Sven Havemann and Dieter W.~Fellner},
  editor = {Stephen N. Spencer},
  title = {3D Modeling in a Web Browser to Formulate Content-Based 3D Queries},
  booktitle = {Proceedings of the 14th International Conference on 3D Web Technology (Web3D 2009)},
  publisher = {ACM Press},
  year = {2009},
  pages = {111--118}
}
Blümel, I., Diet, Jü. & Krottmaier, H., (2009), "Integrating Multimedia Repositories into the PROBADO Framework", Proc. Intern. Conference on Ditital Information Management (ICDIM 2008), pp.178-183.
Abstract: In this paper, we describe a digital library initiative for non-textual documents. The proposed framework will integrate different types of content-repositories -- each one specialized for a specific multimedia domain -- into one seamless system and will add features such as automatic annotation, full-text retrieval and recommender services to non-textual documents. Two multimedia domains, 3D graphics and music, will be introduced. The repositories can be searched using both textual (metadata-based) and non-textual retrieval mechanisms (e.g. using a complex sketch-based interface for searching in 3D-models or a query-by-humming interface for music). Domain-specific metadata models are developed and workflows for automated content-based data analysis and indexing proposed.
BibTeX:
@inproceedings{Bluemel*08,
  author = {Ina Blümel and Jürgen Diet and Harald Krottmaier},
  title = {Integrating Multimedia Repositories into the PROBADO Framework},
  booktitle = {Proc. Intern. Conference on Ditital Information Management (ICDIM 2008)},
  year = {2009},
  pages = {178--183}
}
Encarna ao, J.L., Fellner, D.W. & Schaub, J. (ed.) (2009), "Selected Readings in Computer Graphics 2008", Fraunhofer Verlag, Stuttgart.
BibTeX:
@book{Encarnacao*09sr,,
  editor = {Encarnaão, Jose L. and Fellner, Dieter W. and Schaub, Jutta},
  title = {Selected Readings in Computer Graphics 2008},
  publisher = {Fraunhofer Verlag, Stuttgart},
  year = {2009}
}
Fellner, D.W., Baier, K., Wehner, D. & Toll, A. (ed.) (2009), "Jahresbericht 2008 : Fraunhofer-Institut für Graphische Datenverarbeitung IGD".
BibTeX:
@book{Fellner*08igd,,
  editor = {Fellner, Dieter W. and Baier, Konrad and Wehner, Detlef and Toll, Andrea},
  title = {Jahresbericht 2008 : Fraunhofer-Institut für Graphische Datenverarbeitung IGD},
  year = {2009},
  url = {http://publica.fraunhofer.de/documents/N-97344.html}
}
Fellner, D.W., Müller-Wittig, W. & Unbescheiden, M., (2009), "Virtual and augmented reality", Technology guide: Principles, Applications, Trends, pp.250-255, Springer.
Abstract: The rapid development of microprocessors and graphics processing units (GPUs) has had an impact on information and communication technologies (lCT) over recent years. "Shaders" offer real-time visualisation of complex, computer-generated 3D models with photorealistic quality. Shader technology includes hardware and software modules which colour virtual 3D objects and model reflective properties. These developments have laid the foundations for mixed reality systems which enable both immersion into and realtime interaction with the environment. These environments are based on Milgram's mixed reality continuum where reality is a gradated spectrum ranging from real to virtual spaces.
BibTeX:
@incollection{Fellner*09vr,
  author = {D.~W. Fellner and W. Müller-Wittig and M. Unbescheiden},
  title = {Virtual and augmented reality},
  booktitle = {Technology guide: Principles, Applications, Trends},
  publisher = {Springer},
  year = {2009},
  pages = {250--255}
}
Fellner, D.W., Behr, J. & Bockholt, U., Ma, D., Gausemeier, J., Fan, X. & Grafe, M. (ed.) (2009), "Instantreality -- a framework for industrial augmented and virtual reality applications", Proc. Sino-German Workshop "Virtual Reality & Augmented Reality in Industry", Vol.2, pp.78-83, Springer.
Abstract: Rapid development in processing power, graphic cards and mobile computers open up a wide domain for Mixed Reality applications. Thereby the Mixed Reality continuum covers the complete spectrum from Virtual Reality using immersive projection technology to Augmented Reality using mobile systems like Smartphones and UMPCs. At the Fraunhofer Institute for Computer Graphics (IGD) the Mixed Reality Framework instantreality (www.instantreality.org) has been developed as a single and consistent interface for AR/VR developers. This framework provides a comprehensive set of features to support classic Virtual Reality (VR) as well as mobile Augmented Reality (AR). The goal is to provide a very simple application interface which includes the latest research results in the fields of high-realistic rendering, 3D user interaction and total-immersive display technology. The system design is based on various industry standards to facilitate application development and deployment.
BibTeX:
@inproceedings{Fellner*09vrar,
  author = {D.~W.~Fellner and J. Behr and U. Bockholt},
  editor = {D. Ma and J. Gausemeier and X. Fan and M. Grafe},
  title = {Instantreality -- a framework for industrial augmented and virtual reality applications},
  booktitle = {Proc. Sino-German Workshop "Virtual Reality & Augmented Reality in Industry"},
  publisher = {Springer},
  year = {2009},
  volume = {2},
  pages = {78--83}
}
Fünfzig, C., Ullrich, T., Fellner, D.W. & Bachelder, W.-D., (2009), "Terrain and Model Queries Using Scalar Representation With Wavelet Compression", IEEE Transactions on Instrumentation and Measurement, Vol.58, pp.1-1.
BibTeX:
@article{Fuenfzig*08,
  author = {C. Fünfzig and T. Ullrich and D.~W.~Fellner and W.-D. Bachelder},
  title = {Terrain and Model Queries Using Scalar Representation With Wavelet Compression},
  journal = {IEEE Transactions on Instrumentation and Measurement},
  year = {2009},
  volume = {58},
  pages = {1--1},
  note = {doi=10.1109/TIM.2009.2016879}
}
Havemann, S., Settgast, V., Berndt, R., Eide, Ø. & Fellner, D.W., (2009), "The Arrigo Showcase Reloaded -- Towards a Sustainable Link between 3D and Semantics", ACM Journal on Computing and Cultural Heritage (JOCCH), Vol.2(1), pp.1-13.
BibTeX:
@article{Havemann*09jocch,
  author = {Sven Havemann and Volker Settgast and Rene Berndt and Øyvind Eide and Dieter W.~Fellner},
  title = {The Arrigo Showcase Reloaded -- Towards a Sustainable Link between 3D and Semantics},
  journal = {ACM Journal on Computing and Cultural Heritage (JOCCH)},
  year = {2009},
  volume = {2},
  number = {1},
  pages = {1--13},
  note = {doi: http://dx.doi.org/10.1145/1551676.1551680}
}
Havemann, S. & Fellner, D.W., (2009), "Patterns of Shape Design", Proc. I-KNOW '09 and I-SEMANTICS '09, pp.93-106.
BibTeX:
@inproceedings{Havemann-Fellner09iknow,
  author = {Havemann, Sven and Fellner, Dieter W.},
  title = {Patterns of Shape Design},
  booktitle = {Proc. I-KNOW '09 and I-SEMANTICS '09},
  year = {2009},
  pages = {93-106}
}
Hofmann, C., Hollender, N. & Fellner, D.W., et al., J.C. (ed.) (2009), "A workflow model for collaborative video annotation -- Supporting the Workflow of Collaborative Video Annotation and Analysis performed in Educational Settings", Proceedings of the International Conference on Computer Supported Education, CSEDU*09, pp.199-204, INSTICC Press.
Abstract: There is a growing number of application scenarios for computer-supported video annotation and analysis in educational settings. In related research work, a large number of different research fields and approaches have been involved. Nevertheless, the support of the annotation workflow has been little taken into account. As a first step towards developing a framework that assist users during the annotation process, the single work steps, tasks and sequences of the workflow had to be identified. In this paper, a model of the underlying annotation workflow is illustrated considering its single phases, tasks, and iterative loops that can be especially associated with the collaborative processes taking place.
BibTeX:
@inproceedings{Hofmann*09csedu,
  author = {C. Hofmann and N. Hollender and D.~W. Fellner},
  editor = {J. Cordeiro et al.},
  title = {A workflow model for collaborative video annotation -- Supporting the Workflow of Collaborative Video Annotation and Analysis performed in Educational Settings},
  booktitle = {Proceedings of the International Conference on Computer Supported Education, CSEDU*09},
  publisher = {INSTICC Press},
  year = {2009},
  pages = {199--204}
}
Hofmann, C., Hollender, N. & Fellner, D.W., Schwill, A. (ed.) (2009), "Prozesse und Abläufe beim kollaborativen Wissenserwerb mittels computergestützter Videoannotation", Lernen im digitalen Zeitalter: DeLFI 2009. 7. e-Learning Fachtagung Informatik der Gesellschaft für Informatik, pp.115-126, Köllen.
Abstract: Computergestützte Annotation und Analyse von Videoinhalten finden zunehmend Anwendung in unterschiedlichen Lehr-Lernszenarien. Eine Reihe von Projekten hat sich mit dem Forschungsbereich Videoannotation mit unterschiedlichen Forschungsschwerpunkten beschäftigt, diese fokussierten jedoch stets einen oder nur wenige Bestandteile des gesamten Annotationsprozesses. Bisher wurde den einzelnen Aufgaben, Prozessen und Abläufen, die einer (kollaborativen) Annotation von Videos zugrunde liegen, keine ausreichende Beachtung geschenkt. In diesem Beitrag möchten wir unter besonderer Berücksichtigung von einer Applikation in kollaborativen Lehr-Lernsituationen ein Modell präsentieren, das die Phasen, die zu erledigenden Aufgaben sowie die konkreten Abläufe innerhalb von Videoannotationsprozessen beschreibt.
BibTeX:
@inproceedings{Hofmann*09defli,
  author = {C. Hofmann and N. Hollender and D.~W. Fellner},
  editor = {A. Schwill},
  title = {Prozesse und Abläufe beim kollaborativen Wissenserwerb mittels computergestützter Videoannotation},
  booktitle = {Lernen im digitalen Zeitalter: DeLFI 2009. 7. e-Learning Fachtagung Informatik der Gesellschaft für Informatik},
  publisher = {Köllen},
  year = {2009},
  pages = {115--126}
}
Hofmann, C., Hollender, N. & Fellner, D.W., (2009), "Workflow-based Architecture for Collaborative Video Annotation", Proceedings of the 13th International Conference on Human-Computer Interaction (HCI 09), pp.33-42, Springer.
Abstract: In video annotation research, a large number of different research fields and approaches have been involved. Nevertheless, the support of the annotation workflow has been little taken into account. Previous research projects focus each on a different essential part of the whole annotation process. In this paper, we present our results concerning an analysis of the tasks and processes involved in computer-supported collaborative video annotation and analysis. First, a model of the underlying annotation workflow is going to be illustrated considering its single phases and iterative loops that can be especially associated with collaborative processes taking place. Furthermore, and as our main contribution, we derive a respective reference architecture which bases on the established workflow model.
BibTeX:
@inproceedings{Hofmann*09hcii,
  author = {C. Hofmann and N. Hollender and D.~W. Fellner},
  title = {Workflow-based Architecture for Collaborative Video Annotation},
  booktitle = {Proceedings of the 13th International Conference on Human-Computer Interaction (HCI 09)},
  publisher = {Springer},
  year = {2009},
  pages = {33--42}
}
Hofmann, C., Hollender, N. & Fellner, D.W., et al., H.W. (ed.) (2009), "Task- and Process-related Design of Video Annotation Systems", Mensch und Computer 2009, pp.173-182, Gesellschaft für Informatik.
Abstract: Various research projects already followed up the design of video annotation applications. Nevertheless, collaborative application scenarios as well as the needs of users regarding the annotation workflow have been taken little into account. This paper discusses requirements for the design of video annotation systems. As our main contribution, we consider aspects that can be associated with collaborative use scenarios as well as requirements respecting the support of the annotation workflow not only considering the tasks but also the processes and sequences within. Our goals are to provide the reader with an understanding of the specific characteristics and requirements of video annotation, to establish a framework for evaluation, and to guide the design of video annotation tools.
BibTeX:
@inproceedings{Hofmann*09mc,
  author = {C. Hofmann and N. Hollender and D.~W. Fellner},
  editor = {H. Wandke et al.},
  title = {Task- and Process-related Design of Video Annotation Systems},
  booktitle = {Mensch und Computer 2009},
  publisher = {Gesellschaft für Informatik},
  year = {2009},
  pages = {173--182}
}
Hohmann, B., Krispel, U., Havemann, S. & Fellner, D.W., Remondino, F., El-Hakim, S. & Gonzo, L. (ed.) (2009), "Cityfit: high-quality urban reconstructions by fitting shape grammars to images and derived textured point clouds", Proceedings of the 3rd ISPRS International Workshop 3D-ARCH 2009, ISPRS.
Abstract: Many approaches for automatic 3D city reconstruction exist, but they are still missing an important feature: detailed facades. The goal of the CityFit project is to reconstruct the facades of 80% of the buildings in the city of Graz fully automatically. The challenge is to establish a complete workflow, ranging from acquisition of images and LIDAR data over 2D/3D feature detection and recognition to the generation of lean polygonal facade models. The desired detail level is to represent all significant facade elements larger than 50 cm by explicit polygonal geometry. All geometry shall also carry descriptive annotations (semantic enrichment). This paper presents an outline of the workflow, important design decisions, and the current state of the project. First results were obtained by case studies of facade analysis followed by manual reconstruction. This gave important hints how to structure grammars for automatic reconstruction.
BibTeX:
@inproceedings{Hohmann*2009arch,
  author = {B. Hohmann and U. Krispel and S. Havemann and D. W. Fellner},
  editor = {F. Remondino and S. El-Hakim and L. Gonzo},
  title = {Cityfit: high-quality urban reconstructions by fitting shape grammars to images and derived textured point clouds},
  booktitle = {Proceedings of the 3rd ISPRS International Workshop 3D-ARCH 2009},
  publisher = {ISPRS},
  year = {2009}
}
Settgast, V., Lancelle, M., Havemann, S. & Fellner, D.W., (2009), "Spatially Coherent Visualization of Image Detection Results using Video Textures", Proceeding of the 33th Workshop of the Austrian Association for Pattern Recognition (AAPR/OAGM), Vol.1, pp.13-23.
Abstract: Camera-based object detection and tracking are image processing tasks that typically do not take 3D information into account. Spatial relations, however, are sometimes crucial to judge the correctness or importance of detection and tracking results. Especially in applications with a large number of image processing tasks running in parallel, traditional methods of presenting detection results do not scale. In such cases it can be very useful to transform the detection results back into their common 3D space. We present a computer graphics system that is capable of showing a large number of detection results in real-time, using different levels of abstraction, on various hardware configurations. As example application we demonstrate our system with a surveillance task involving eight cameras.
BibTeX:
@article{Settgast*2009aapr,
  author = {Settgast, Volker and Lancelle, Marcel and Havemann, Sven and Fellner, Dieter W.},
  title = {Spatially Coherent Visualization of Image Detection Results using Video Textures},
  journal = {Proceeding of the 33th Workshop of the Austrian Association for Pattern Recognition (AAPR/OAGM)},
  year = {2009},
  volume = {1},
  pages = {13--23}
}
Strobl, M., Berndt, R., Havemann, S. & Fellner, D.W., Debattista, K. (ed.) (2009), "Publishing 3D Content as PDF in Cultural Heritage", VAST09: The 10th International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage, pp.117-124, Eurographics.
Abstract: Sharing 3D models with embedded annotations and additional information in a general accessible way still is a major challange. Using 3D technologies must become much easier, in particular in areas such as Cultural Heritage, where archeologists, art historians, and museum curators rely on robust, easy to use solutions. Sustainable exchange standards are vital since unlike in industry, no sophisticated PLM or PDM solutions are common in CH. To solve this problem we have examined the PDF file format and developed concepts and software for the exchange of annotated 3D models in a way that is not just comfortable but also sustainable. We show typical use cases for authoring and using PDF documents containing annotated 3D geometry. The resulting workflow is eficient and suitable for experienced users as well as for users working only with standard word processing tools and e-mail clients (plus, currently, Acrobat Pro Extended).
BibTeX:
@inproceedings{Strobl*09vast,
  author = {M. Strobl and R. Berndt and S. Havemann and D.~W. Fellner},
  editor = {K. Debattista},
  title = {Publishing 3D Content as PDF in Cultural Heritage},
  booktitle = {VAST09: The 10th International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage},
  publisher = {Eurographics},
  year = {2009},
  pages = {117--124}
}
Ullrich, T., Settgast, V., Ofenböck, C. & Fellner, D.W., M., H., D., S., Ch.A., W. & K., N. (ed.) (2009), "Desktop Integration in Graphics Environments", Virtual Environments 2009; Joint Virtual Reality Conference of EGVE - ICAT - EuroVR, pp.109-112, Eurographics Association.
Abstract: In this paper, we present the usage of the Remote Desktop Protocol to integrate arbitrary, legacy applications in various environments. This approach accesses a desktop on a real computer or within a virtual machine. The result is not one image of the whole desktop, but a sequence of images of all desktop components (windows, dialogs, etc.). These components are rendered into textures and fed into a rendering framework (OpenSG). There the functional hierarchy is represented by a scene graph. In this way the desktop components can be rearranged freely and painted according to circumstances of the graphical environment supporting a wide range of display settings - from immersive environments via high-resolution tiled displays to mobile devices.
BibTeX:
@inproceedings{Ullrich*09egve,
  author = {Torsten Ullrich and Volker Settgast and Christian Ofenböck and Dieter W.~Fellner},
  editor = {Hirose M. and Schmalstieg D. and Wingrave Ch.A. and NHishimura K.},
  title = {Desktop Integration in Graphics Environments},
  booktitle = {Virtual Environments 2009; Joint Virtual Reality Conference of EGVE - ICAT - EuroVR},
  publisher = {Eurographics Association},
  year = {2009},
  pages = {109--112},
  note = {doi: 10.2312/EGVE/JVRC09/109-112}
}
Ullrich, T., Settgast, V. & Fellner, D.W., (2009), "Semantic Fitting and Reconstruction", Selected Readings in Computer Graphics 2008, Vol.19, pp.69-84.
BibTeX:
@article{Ullrich*09sr,
  author = {Ullrich, Torsten and Settgast, Volker and Fellner, Dieter W.},
  title = {Semantic Fitting and Reconstruction},
  journal = {Selected Readings in Computer Graphics 2008},
  year = {2009},
  volume = {19},
  pages = {69--84}
}

2008

Berndt, R., Havemann, S., Settgast, V. & Fellner, D.W., Ioannides, M. (ed.) (2008), "Sustainable Markup and Annotation of 3D Geometry", Proceedings of the 14th International Conference on Virtual Systems and Multimedia (VSMM 2008), pp.187-193, International Society on Virtual Systems and MultiMedia.
Abstract: We propose a novel general method to enrich ordinary 3D models with semantic information. Based on the Collada format this approach fits perfectly into the XML world: It allows bi-directional linking, from a web resource to a (part of) a 3D model, and the reverse direction as well. We also describe our software framework prototype for 3D-annotation by non-3D-specialists, in our case cultural heritage professionals.
BibTeX:
@inproceedings{Berndt*08vsmm,
  author = {Rene Berndt and Sven Havemann and Volker Settgast and Dieter W.~Fellner},
  editor = {Marions Ioannides},
  title = {Sustainable Markup and Annotation of 3D Geometry},
  booktitle = {Proceedings of the 14th International Conference on Virtual Systems and Multimedia (VSMM 2008)},
  publisher = {International Society on Virtual Systems and MultiMedia},
  year = {2008},
  pages = {187--193}
}
Fellner, D.W., Kamps, T., Kohlhammer, J. & Stricker, A., (2008), "Vorsprung durch Wissen", ZWF Zeitschrift für wirtschaftlichen Fabrikbetrieb, Vol.103, pp.205-208.
Abstract: For over 20 years scientists of the Fraunhofer Institute for Computer Graphics IGD would not leave knowledge management to chance. The researchers develop intelligent searching solutions and information visualization technologies. With their innovations they give companies and organizations the opportunity to react on the requirements of today's dynamic information society. ConWeaver, a software developed at the Fraunhofer IGD, offers a semantic and integrated search beyond limits of databases. The searching system extracts company knowledge automated from heterogeneous data sources and represents it in the form of multilingual, semantic knowledge meshes. The Visual Analytics Group of the Fraunhofer IGD deals with visualization of data and analysis of information. The scientists develop real-time solutions for the simulation and interactive visualization of big multidimensional amounts of data and information.
BibTeX:
@article{Fellner*08,
  author = {Dieter W.~Fellner and Thomas Kamps and Jörn Kohlhammer and Anna Stricker},
  title = {Vorsprung durch Wissen},
  journal = {ZWF Zeitschrift für wirtschaftlichen Fabrikbetrieb},
  year = {2008},
  volume = {103},
  pages = {205--208}
}
Havemann, S., Settgast, V., Berndt, R., Eide, Ø. & Fellner, D.W., (2008), "The Arrigo Showcase Reloaded -- Towards a Sustainable Link between 3D and Semantics", Proc. VAST 2008 Intl. Symp., pp.125-132, Eurographics.
Abstract: It is still a big technical problem to establish a relation between a shape and its meaning in a sustainable way. We present a solution with a markup method that allows to label parts of a 3D object in a similar way to labeling parts of a hypertext. A 3D-markup can serve both as hyperlink and as link anchor, which is the key to bi-directional linking between 3D objects and web documents. Our focus is on a sustainable 3D software infrastructure for application scenarios ranging from e-mail and internet over authoring and browsing semantic networks to interactive museum presentations. We demonstrate the workflow and the effectiveness of our tools by re-doing the Arrigo 3D showcase. We are working towards a 'best practice' example for information modeling in cultural heritage.
BibTeX:
@inproceedings{Havemann*08vast,
  author = {Sven Havemann and Volker Settgast and Rene Berndt and Øyvind Eide and Dieter W.~Fellner},
  title = {The Arrigo Showcase Reloaded -- Towards a Sustainable Link between 3D and Semantics},
  booktitle = {Proc. VAST 2008 Intl. Symp.},
  publisher = {Eurographics},
  year = {2008},
  pages = {125--132},
  note = {doi: 10.2312/VAST/VAST08/125-132}
}
Havemann, S. & Fellner, D.W., (2008), "Progressive Combined B-reps -- Multi-Resolution Meshes for Interactive Real-time Shape Design", Journal of WSCG, Vol.16(1-3), pp.121-133.
BibTeX:
@article{Havemann*08wscg,
  author = {S. Havemann and Dieter W.~Fellner},
  title = {Progressive Combined B-reps -- Multi-Resolution Meshes for Interactive Real-time Shape Design},
  journal = {Journal of WSCG},
  year = {2008},
  volume = {16},
  number = {1-3},
  pages = {121--133}
}
Lancelle, M., Settgast, V. & Fellner, D., (2008), "Definitely Affordable Virtual Environment", Proc. IEEE Virtual Reality, pp.1-1, IEEE.
Abstract: The DAVE is an immersive projection environment, a foursided CAVE. DAVE stands for 'definitely affordable virtual environment'. 'Affordable' means that by mostly using standard hardware components we can greatly reduce costs compared to other commercial systems. We show the hardware setup and some applications in the accompanying video. In 2005 we buildt a new version of our DAVE at the University of Technology in Graz, Austria. Room restrictions motivated a new compact design to optimally use the available space. The back projection material with a custom shape is streched to the wooden frame to provide a flat surface without ripples.
BibTeX:
@inproceedings{Lancelle*08ieeevr,
  author = {M. Lancelle and V. Settgast and D. Fellner},
  title = {Definitely Affordable Virtual Environment},
  booktitle = {Proc. IEEE Virtual Reality},
  publisher = {IEEE},
  year = {2008},
  pages = {1-1}
}
Mendez, E., Schall, G., andD. Fellner, S.H., Schmalstieg, D. & Junghanns, S., (2008), "Generating Semantic 3D Models of Unterground Infrastructure", IEEE Computer Graphics and Applications, Vol.28(3), pp.48-57.
Abstract: By combining two previously unrelated techniques -- semantic markup in a scene-graph and generative modeling -- a new framework retains semantic information until late in the rendering pipeline. This is a crucial prerequisite for achieving enhanced visualization effects and interactive behavior that doesn't compromise interactive frame rates. The proposed system creates interactive 3D visualizations from 2D geospatial databases in the domain of utility companies' underground infrastructure, creating urban models based on the companies' real-world data. The system encodes the 3D models in a scene-graph that mixes visual models with semantic markup that interactively filters and styles the models. The actual graphics primitives are generated on the fly by scripts that are attached to the scene-graph nodes.
BibTeX:
@article{Mendez*08ieeecga,
  author = {E. Mendez and G. Schall and S. Havemann andD. Fellner and D. Schmalstieg and S. Junghanns},
  title = {Generating Semantic 3D Models of Unterground Infrastructure},
  journal = {IEEE Computer Graphics and Applications},
  year = {2008},
  volume = {28},
  number = {3},
  pages = {48--57},
  note = {http://dx.doi.org/10.1109/MCG.2008.53}
}
Offen, L. & Fellner, D., Linsen, L., Hagen, H. & Hamann, B. (ed.) (2008), "BioBrowser -- Visualization of and Access to Macro-Molecular Structures", Visualization in Medicine and Life Sciences, pp.257-273, Springer.
Abstract: Based on the results of an interdisciplinary research project the paper addresses the embedding of knowledge about the function of different parts/structures of a macro molecule (protein, DNA, RNA) directly into the 3D model of this molecule. Thereby the 3D visualization becomes an important user interface component when accessing domain-specific knowledge -- similar to a web browser enabling its users to access various kinds of information. In the prototype implementation -- named Biobrowser -- various information related to bio-research is managed by a database using a fine-grain access control. This also supports restricting the access to parts of the material based on the user privileges. The database is supplied by a SOAP web service so that is it possible (after identifying yourself by a login procedure of course) to query, to change, or to add some information remotely by using the 3D model of the molecule. All these actions are performed on sub structures of themolecules. These can be selected either by an easy query language or by just picking them in the 3D model with the mouse.
BibTeX:
@incollection{Offen-Fellner06vmls,
  author = {Offen, Lars and Fellner, Dieter},
  editor = {Lars Linsen and Hans Hagen and Bernd Hamann},
  title = {BioBrowser -- Visualization of and Access to Macro-Molecular Structures},
  booktitle = {Visualization in Medicine and Life Sciences},
  publisher = {Springer},
  year = {2008},
  pages = {257-273},
  note = {doi: 10.1007/978-3-540-72630-2}
}
Schreck, T., Fellner, D. & Keim, D., (2008), "Towards automatic feature vector optimization for multimedia applications", SAC '08: Proceedings of the 2008 ACM symposium on Applied computing, pp.1197-1201, ACM.
Abstract: We systematically evaluate a recently proposed method for unsupervised discrimination power analysis for feature selection and optimization in multimedia applications. A series of experiments using real and synthetic benchmark data is conducted, the results of which indicate the suitability of the method for unsupervised feature selection and optimization. We present an approach for generating synthetic feature spaces of varying discrimination power, modelling main characteristics from real world feature vector extractors. A simple, yet powerful visualization is used to communicate the results of the automatic analysis to the user.
BibTeX:
@inproceedings{Schreck*08sac,
  author = {Tobias Schreck and Dieter Fellner and Daniel Keim},
  title = {Towards automatic feature vector optimization for multimedia applications},
  booktitle = {SAC '08: Proceedings of the 2008 ACM symposium on Applied computing},
  publisher = {ACM},
  year = {2008},
  pages = {1197--1201},
  note = {doi: http://doi.acm.org/10.1145/1363686.1363964}
}
Steiner, M., Reiter, P., Ofenböck, C., Settgast, V., Ullrich, T., Lancelle, M. & Fellner, D.W., (2008), "Intuitive Navigation in Virtual Environments", Proceedings of Eurographics Symposium on Virtual Environments, Vol.14, pp.5-8.
Abstract: We present several novel ways of interaction and navigation in virtual worlds. Using the optical tracking system of our four-sided Definitely Affordable Virtual Environment (DAVE), we designed and implemented navigation and movement controls using the user's gestures and postures. Our techniques are more natural and intuitive than a standard 3D joystick-based approach, which compromises the immersion's impact.
BibTeX:
@inproceedings{Steiner*08egve,
  author = {Steiner, Markus and Reiter, Philipp and Ofenböck, Christian and Settgast, Volker and Ullrich, Torsten and Lancelle, Marcel and Fellner, Dieter W.},
  title = {Intuitive Navigation in Virtual Environments},
  booktitle = {Proceedings of Eurographics Symposium on Virtual Environments},
  year = {2008},
  volume = {14},
  pages = {5-8},
  note = {doi:10.2312/PE/VE2008Posters/005-008}
}
Ullrich, T., Techmann, T. & Fellner, D.W., (2008), "Web-based Algorithm Tutorials in Different Learning Scenarios", World Conference on Educational Multimedia, Hypermedia and Telecommunications (ED-Media), Vol.20, pp.5467-5472.
Abstract: The combination of scripting languages with web technologies offers many possibilities in teachings. This paper presents a scripting framework that consists of a Java and JavaScript engine and an included editor. It allows editing scripts and source code online, writing new applications, modifying existing applications and starting them from within the editor by a simple mouse click. This framework is a good basis for online tutorials. Included scripts that are ready to run are able to replace simple Java applets without drawbacks but with much more possibilities. Furthermore these scripts are perfect in different teaching scenarios: demo applications can be started via web browser and can be modified just in time. This modification can be done during lecture or within a drill-and-practice session. Examples in the context of computer graphics illustrate the usefulness of our framework in lectures.
BibTeX:
@inproceedings{Ullrich*08edmedia,
  author = {Ullrich, Torsten and Techmann, Torsten and Fellner, Dieter W.},
  title = {Web-based Algorithm Tutorials in Different Learning Scenarios},
  booktitle = {World Conference on Educational Multimedia, Hypermedia and Telecommunications (ED-Media)},
  year = {2008},
  volume = {20},
  pages = {5467-5472}
}
Ullrich, T., Settgast, V. & Fellner, D.W., (2008), "Semantic Fitting and Reconstuction", Journal on Computing and Cultural Heritage (JOCCH), Vol.1, pp.1-20.
Abstract: The current methods to describe the shape of three-dimensional objects can be classified into two groups: methods following the composition of primitives approach and descriptions based on procedural shape representations. As a 3D acquisition device returns an agglomeration of elementary objects (e.g. a laser scanner returns points), the model acquisition pipeline always starts with a composition of primitives. Due to the semantic information carried with a generative description, a procedural model provides valuable metadata that make up the basis for digital library services: retrieval, indexing, and searching. An important challenge in computer graphics in the field of cultural heritage is to build a bridge between the generative and the explicit geometry description combining both worlds-the accuracy and systematics of generative models with the realism and the irregularity of real-world data. A first step towards a semantically enriched data description is a reconstruction algorithm based on decreasing exponential fitting. This approach is robust towards outliers and multiple dataset mixtures. It does not need a preceding segmentation and is able to fit a generative shape template to a point cloud identifying the parameters of a shape.
BibTeX:
@article{Ullrich*08jocch,
  author = {Torsten Ullrich and Volker Settgast and Dieter W.~Fellner},
  title = {Semantic Fitting and Reconstuction},
  journal = {Journal on Computing and Cultural Heritage (JOCCH)},
  year = {2008},
  volume = {1},
  pages = {1--20},
  note = {doi: http://doi.acm.org/10.1145/1434763.1434769}
}
Ullrich, T., Settgast, V. & Fellner, D.W., (2008), "Distance Visualization for Geometric Analysis", Proceedings of the Conference on Virtual Systems and MultiMedia Dedicated to Digital Heritage (VSMM), pp.334-340.
Abstract: The need to analyze and visualize differences of very similar objects arises in many research areas: mesh compression, scan alignment, nominal/actual value comparison, quality management, and surface reconstruction to name a few. Although the problem to visualize some distances may sound simple, the creation of a good scene setup including the geometry, materials, colors, and the representation of distances is challenging. Our contribution to this problem is an application which optimizes the work-flow to visualize distances. We propose a new classification scheme to group typical scenarios. For each scenario we provide reasonable defaults for color tables, material settings, etc. Completed with predefined file exporters, which are harmonized with commonly used rendering and viewing applications, the presented application is a valuable tool. Based on web technologies it works out-of-the-box and does not need any configuration or installation. All users who have to analyze and document 3D geometry will stand to benefit from our new application.
BibTeX:
@inproceedings{Ullrich*08vsmm,
  author = {Torsten Ullrich and Volker Settgast and Dieter W.~Fellner},
  title = {Distance Visualization for Geometric Analysis},
  booktitle = {Proceedings of the Conference on Virtual Systems and MultiMedia Dedicated to Digital Heritage (VSMM)},
  year = {2008},
  pages = {334-340}
}
Ullrich, T., Ulrich, U.K. & Fellner, D.W., (2008), "Compilation of procedural models", Proceedings of the 13th International Symposium on 3D Web Technology (Web3D 2008), pp.75-81, ACM.
Abstract: Scripting techniques are used in various contexts. The field of application ranges from layout description languages (PostScript), user interface description languages (XUL) and classical scripting languages (JavaScript) to action nodes in scene graphs (VRMLScript) and web-based desktop applications (AJAX). All these applications have an increase of scripted components in common -- especially in computer graphics. As the interpretation of a geometric script is computationally more intensive than the handling of static geometry, optimization techniques, such as justin- time compilation, are of great interest. Unfortunately, scripting languages tend to support features such as higher order functions or self-modification, etc. These language characteristic are difficult to compile into machine/byte-code. Therefore, we present a hybrid approach: an interpreter with an integrated compiler. In this way we speed up the script evaluation without having to remove any language features e.g. the possibility of self-modifications. We demonstrate its usage at XGML -- a dialect of the generative modeling language GML, which is characterized by its dynamic behavior.
BibTeX:
@inproceedings{Ullrich*08web3d,
  author = {Torsten Ullrich and Ulrich Krispel Ulrich and Dieter W. Fellner},
  title = {Compilation of procedural models},
  booktitle = {Proceedings of the 13th International Symposium on 3D Web Technology (Web3D 2008)},
  publisher = {ACM},
  year = {2008},
  pages = {75--81},
  note = {doi: http://doi.acm.org/10.1145/1394209.1394226}
}
Steiner, M., Reiter, P., Ofenböck, C., Settgast, V., Ullrich, T., Lancelle, M. & Fellner, D.W., (2008), "Intuitive Navigation in Virtual Environments", Proceedings of Eurographics Symposium on Virtual Environments: Posters, Vol.14, pp.5-8.
BibTeX:
@inproceedings{VE2008Posters:5-8:2008,
  author = {Steiner, Markus and Reiter, Philipp and Ofenböck, Christian and Settgast, Volker and Ullrich, Torsten and Lancelle, Marcel and Fellner, Dieter W.},
  title = {Intuitive Navigation in Virtual Environments},
  booktitle = {Proceedings of Eurographics Symposium on Virtual Environments: Posters},
  year = {2008},
  volume = {14},
  pages = {5-8},
  note = {doi:10.2312/PE/VE2008Posters/005-008}
}

2007

Bustos, B., Fellner, D., Havemann, S., Keim, D.A., Saupe, D. & Schreck, T., (2007), "Foundations of 3D Digital Libraries: Current Approaches and Urgent Research Challenges", DELOS Network of Excellence on Digital Libraries;Pre-Proceedings of the First International Workshopon Digital Libraries Foundations, pp.7-12.
Abstract: 3D documents are an indispensable data type in many important application domains such as Computer Aided Design, Simulation and Visualization, and Cultural Hritage, to name a few. The 3D document type can represent arbitrarily complex information by composing geometrical, topological, structural, or material properties, among others. It often is integrated with meta data and annotation by the various application systems that produce, process, or consume 3D documents. We argue that due to the inherent complexity of the 3D data type in conjunction with and imminent pervasive usage and explosion of available content, there is pressing need to address key problems of the 3D data type. These problems need to be tackled before the 3D data type can be fully supported by Digital Library technology in the sense of a generalized document, unlocking its full potential. If the problems are addressed appropriately, the expected benefits are manifold and may lead to radically improvedproduction, processing, and consumption of 3D content.
BibTeX:
@inproceedings{Bustos*07,
  author = {B. Bustos and D. Fellner and S. Havemann and D.~A. Keim and D. Saupe and T. Schreck},
  title = {Foundations of 3D Digital Libraries: Current Approaches and Urgent Research Challenges},
  booktitle = {DELOS Network of Excellence on Digital Libraries;Pre-Proceedings of the First International Workshopon Digital Libraries Foundations},
  year = {2007},
  pages = {7-12}
}
Fellner, D.W., Saupe, D. & Krottmaier, H., (2007), "Guest Editors' Introduction: 3D Documents", IEEE CG&A, Vol.27(4), pp.20-21.
BibTeX:
@article{Fellner*07ieeecga,
  author = {D. W. Fellner and D. Saupe and H. Krottmaier},
  title = {Guest Editors' Introduction: 3D Documents},
  journal = {IEEE CG&A},
  year = {2007},
  volume = {27},
  number = {4},
  pages = {20-21},
  note = {http://doi.ieeecomputersociety.org/10.1109/MCG.2007.83}
}
Fünfzig, C., Ullrich, T., Fellner, D. & Bachelder, W.-D., (2007), "Empirical Comparision of Data Structures for Line-Of-Sight Computation", International Symposium of Intelligent Signal Processing, pp.291-296.
Abstract: Line-of-sight (LOS) computation is important for interrogation of heightfield grids in the context of geo information and many simulation tasks like electromagnetic wave propagation and flight surveillance. Compared to searching the regular grid directly, more advanced data structures like a 2.5d kd-tree offer better performance. We describe the definition of a 2.5d kd-tree from the digital elevation model and its use for LOS computation on a point-reconstructed or bilinear-reconstructed terrain surface. For compact storage, we use a wavelet-like storage scheme which saves one half of the storage space without considerably compromising the runtime performance. We give an empirical comparison of both approaches on practical data sets which show the method of choice for CPU computation of LOS.
BibTeX:
@inproceedings{Fuenfzig*07,
  author = {C. Fünfzig and T. Ullrich and D. Fellner and W.-D. Bachelder},
  title = {Empirical Comparision of Data Structures for Line-Of-Sight Computation},
  booktitle = {International Symposium of Intelligent Signal Processing},
  year = {2007},
  pages = {291--296}
}
Havemann, S., Hopp, A. & Fellner, D., Fröhlich, B., Blach, R. & v. Liere, R. (ed.) (2007), "A Single Chip DLP Projector for Stereoscopic Images of High Color Quality and Resolution", Proc. 13th EG Symposium on Virtual Environments,10th Immersive Projection Technology, pp.21-26, Eurographics.
Abstract: We present a novel stereoscopic projection system. It combines all the advantages of modern single-chip DLP technology -- attractive price, great brightness, high contrast, superior resolution and color quality -- with those of active stereoscopy: invariance to the orientation of the user and an image separation of nearly 100 With a refresh rate of 60 Hz per eye (120 Hz in total) our system is flicker-free even for sensitive users. The system permits external projector synchronisation which allows to build up affordable stereoscopic multi-projector systems, e.g., for immersive visualisation.
BibTeX:
@inproceedings{Havemann*07egve,
  author = {S. Havemann and A. Hopp and D. Fellner},
  editor = {B. Fröhlich and R. Blach and R. v.~Liere},
  title = {A Single Chip DLP Projector for Stereoscopic Images of High Color Quality and Resolution},
  booktitle = {Proc. 13th EG Symposium on Virtual Environments,10th Immersive Projection Technology},
  publisher = {Eurographics},
  year = {2007},
  pages = {21--26}
}
Havemann, S., Settgast, V., Lancelle, M. & Fellner, D.W., (2007), "3D-Powerpoint -- A Design Tool for Digital Exhibitions of Cultural Artifacts", Proc. VAST 2007 Intl. Symp., pp.39-46, Eurographics.
Abstract: We describe first steps towards a suite of tools for CH professionals to set up and run digital exhibitions of cultural 3D artifacts in museums. Both the authoring and the presentation views shall finally be as easy to use as, e.g., Microsoft Powerpoint. But instead of separated slides our tool uses pre-defined 3D scenes, called "layouts", containing geometric objects acting as placeholders, called "drop targets". They can be replaced quite easily, in a drag-and-drop fashion, by digitized 3D models, and also by text and images, to customize and adapt a digital exhibition to the style of the real museum. Furthermore, the tool set contains easy-to-use tools for the rapid 3D modeling of simple geometry and for the alignment of given models to a common coordinate system. The technical innovation is that the tool set is not a monolithic application. Instead it is completely based on scripted designs, using the OpenSG scene graph engine and the GML scripting language. This makes it extremely flexible: Anybody capable of drag-and-drop can design 3D exhibitions. Anybody capable of GML scripting can create new designs. And finally, we claim that the presentation setup of our designs is 'grandparent-compliant', meaning that it permits to the public audience the detailed inspection of beautiful cultural 3D objects without getting lost or feeling uncomfortable.
BibTeX:
@inproceedings{Havemann*07vast,
  author = {Havemann, Sven and Settgast, Volker and Lancelle, Marcel and Fellner, Dieter W.},
  title = {3D-Powerpoint -- A Design Tool for Digital Exhibitions of Cultural Artifacts},
  booktitle = {Proc. VAST 2007 Intl. Symp.},
  publisher = {Eurographics},
  year = {2007},
  pages = {39-46},
  note = {doi: 10.2312/VAST/VAST07/039-046}
}
Havemann, S. & Fellner, D.W., (2007), "Seven Research Challenges of Generalized 3D Documents", IEEE Computer Graphics and Applications, Vol.27(3), pp.70-76.
Abstract: The rapid evolution of information and communication technology has always been a source for challenging new research questions in computer science. The vision of the emerging research field of semantic 3D is to establish the notion of generalized 3D documents that are full members of the family of generalized documents. This means that access would be content-based rather than based on metadata. The purpose of this article is to highlight the research issues that impede the realization of this vision today. The seven research challenges include: (1) '3D data set' can have many meanings, (2) a sustainable 3D file format, (3) representation-independent stable 3D markup, (4) representation-independent 3D query operations, (5) documenting provenance and processing history, (6) consistency between shape and meaning, and (7) closing the semantic gap.
BibTeX:
@article{Havemann-Fellner07ieeecga-SevResChal,
  author = {Havemann, Sven and Fellner, Dieter W.},
  title = {Seven Research Challenges of Generalized 3D Documents},
  journal = {IEEE Computer Graphics and Applications},
  year = {2007},
  volume = {27},
  number = {3},
  pages = {70-76},
  note = {doi: 10.1109/MCG.2007.67}
}
Hopp, A., Fellner, D. & Havemann, S., (2007), "Cube 3D$^2$ -- Ein single Chip DLP stereo Projektor", IFF-Wissenschaftstage(10), pp.77-86, Fraunhofer-Institut für Fabrikbetrieb und -automatisierung.
Abstract: Der Artikel beschreibt die erfolgreiche Entwicklung eines stereoskopief?higen Digitalprojektors nach Zielvorgaben speziell f?r die Bereiche VR/AR. Dabei wurde nicht von den vorhandenen Technologien ausgegangen um ein VR/AR System zusammenzustellen, sondern explizit Zielvorgaben f?r ein solches System entwickelt um die Vor- und Nachteile bekannter Technologien zu minimieren. Dies f?hrte zur Entwicklung eines v?llig neuen 3D Projektors.
BibTeX:
@inproceedings{Hopp*07,
  author = {A. Hopp and D. Fellner and S. Havemann},
  title = {Cube 3D$^2$ -- Ein single Chip DLP stereo Projektor},
  booktitle = {IFF-Wissenschaftstage},
  publisher = {Fraunhofer-Institut für Fabrikbetrieb und -automatisierung},
  year = {2007},
  number = {10},
  pages = {77-86}
}
Krottmaier, H., Kurth, F., Steenweg, T. & Appelrath, H-J.and Fellner, D.W., (2007), "PROBADO -- A Generic Repository Integration Framework", Research and Advanced Technology for Digital Libraries, ECDL 2007, Vol.4675, pp.518-521, Springer.
Abstract: The number of newly generated multimedia documents (e.g. music, e-learning material, or 3D-graphics) increases year by year. Today, the workflow in digital libraries focuses on textual documents only. Hence, considering content-based retrieval tasks, multimedia documents are not analyzed and indexed sufficiently. To facilitate content-based retrieval and browsing, it is necessary to introduce recent techniques for multimedia document processing into the workflow of nowadays digital libraries. In this short paper, we introduce the PROBADO-framework which will (a) integrate different types of content-repositories -- each one specialized for a specific multimedia domain -- into one seamless system, and (b) will add features available in text-based digital libraries (such as automatic annotation, full-text retrieval, or recommender services) to non-textual documents. Existing libraries will benefit from the framework since it extends existing technology for handling textual documents with features for dealing with the non-textual domain.
BibTeX:
@incollection{Krottmaier*07ecdl,
  author = {Krottmaier, H. and Kurth, F. and Steenweg, T. and Appelrath, H-J.and Fellner, D. W.},
  title = {PROBADO -- A Generic Repository Integration Framework},
  booktitle = {Research and Advanced Technology for Digital Libraries, ECDL 2007},
  publisher = {Springer},
  year = {2007},
  volume = {4675},
  pages = {518-521},
  note = {doi: 10.1007/978-3-540-74851-9}
}
Krottmaier, H., Ball, R. (ed.) (2007), "Die Systemarchitektur von PROBADO: Der allgemeine Zugriff auf Repositorien mit nicht-textuellen Inhalte", Wissenschaftskommunikation der Zukunft, 4. Konferenz der Zentralbibliothek Forschungszentrum Jülich, pp.169-176.
Abstract: Zentrale Fachbibliotheken und Fachinformationszentren haben bislang die Informationsversorgung mit Textdokumenten, vor allem Zeitschriftenartikel, f?r ihre Kunden aus Forschung, Lehre und Wirtschaft sicherstellen k?nnen. Exemplarisch sei hier auf die klassischen Bibliotheksdienstleistungen wie Dokumentlieferdienste, virtuelle Fachbibliotheken, aber auch auf digitale Bibliotheken verwiesen. Die Erf?llung dieses Versorgungsauftrages befindet sich allerdings durch neue mediale Formate und Multimedia-Objekte (z.B. Musik, Architekturmodelle und ELearning-Material) im Umbruch, die in der Praxis immer ?fter von den Benutzern ben?tigt und angefordert werden und daher zur umfassenden Informationsversorgung ?ber ein Bibliotheksportal dazugeh?ren, das sowohl die Anforderungen einer text-basierten wie auch audio-visuellen Suche integriert.
BibTeX:
@inproceedings{Krottmaier07,
  author = {H. Krottmaier},
  editor = {Rafael Ball},
  title = {Die Systemarchitektur von PROBADO: Der allgemeine Zugriff auf Repositorien mit nicht-textuellen Inhalte},
  booktitle = {Wissenschaftskommunikation der Zukunft, 4. Konferenz der Zentralbibliothek Forschungszentrum Jülich},
  year = {2007},
  pages = {169--176}
}
Leeb, R., Settgast, V., Fellner, D. & Pfurtscheller, G., (2007), "Self-paced exploration of the Austrian National Library through thought", International Journal of Bioelectromagnetism, Vol.9(4), pp.237-244.
Abstract: The results of a self-paced Brain-Computer Interface (BCI) are presented which are based on the detection of senorimotor electroencephalogram rhythms during motor imagery. The participants were given the task of moving through a virtual model of the Austrian National Library by performing motor imagery. This work shows that five participants which were trained in a synchronous BCI could sucessfully perform the asynchronous experiment.
BibTeX:
@article{Leeb*07bci,
  author = {R. Leeb and V. Settgast and D. Fellner and G. Pfurtscheller},
  title = {Self-paced exploration of the Austrian National Library through thought},
  journal = {International Journal of Bioelectromagnetism},
  year = {2007},
  volume = {9},
  number = {4},
  pages = {237-244}
}
Rauch, C., Krottmaier, H. & Tochtermann, K., (2007), "File-Formats for Preservation: Evaluating the Long-Term Stability of File-Formats", Openness in Digital Publishing, pp.101-106.
Abstract: While some file-formats become unreadable after short periods, others remain interpretable over a long-term. Among the over 1.000 file-formats, some are better and some are less suited for long-term preservation. A standardized process for evaluating the stability of a file-format is described in this paper and its practical use is shown with file-formats for 3D-objects. Recommendations to users of 3D-applications are given in the last section of this article. Some of the results are used in PROBADO, a sophisticated search engine for non-traditional objects (such as 3D-documents, music etc.).
BibTeX:
@inproceedings{Rauch*07elpub,
  author = {C. Rauch and H. Krottmaier and K. Tochtermann},
  title = {File-Formats for Preservation: Evaluating the Long-Term Stability of File-Formats},
  booktitle = {Openness in Digital Publishing},
  year = {2007},
  pages = {101--106}
}
Schreck, T., Tekušová, T., Kohlhammer, Jö. & Fellner, D., (2007), "Trajectory-based visual analysis of large financial time series data", ACM SIGKDD Explor. Newsl., Vol.9(2), pp.30-37, ACM.
Abstract: We present a novel stereoscopic projection system. It combines all the advantages of modern single-chip DLP technology - attractive price, great brightness, high contrast, superior resolution and color quality - with those of active stereoscopy: invariance to the orientation of the user and an image separation of nearly 100 With a refresh rate of 60 Hz per eye (120 Hz in total) our system is flicker-free even for sensitive users. The system permits external projector synchronisation which allows to build up affordable stereoscopic multi-projector systems, e.g., for immersive visualisation.
BibTeX:
@article{Schreck*07sigkdd,
  author = {Tobias Schreck and Tatiana Tekušová and Jörn Kohlhammer and Dieter Fellner},
  title = {Trajectory-based visual analysis of large financial time series data},
  journal = {ACM SIGKDD Explor. Newsl.},
  publisher = {ACM},
  year = {2007},
  volume = {9},
  number = {2},
  pages = {30-37},
  note = {doi: 10.1145/1345448.1345454}
}
Settgast, V., Ullrich, T. & Fellner, D.W., (2007), "Information Technology for Cultural Heritage", IEEE Potentials, Vol.26(4), pp.38-43.
Abstract: Information technology applications in the field of cultural heritage include various disciplines of computer science. The work flow from archaeological discovery to scientific preparation demands multidisciplinary cooperation and interaction at various levels. This article describes the information technology pipeline from the computer science point of view. The description starts with the model acquisition. Computer vision algorithms are able to generate a raw three-dimensional (3D) model using input data such as photos and scans. In the next step, computer graphics methods create an accurate, highlevel model description. Besides geometric information, each model needs semantic metadata to perform digital library tasks such as storage, markup, indexing, and retrieval. A structured repository of virtual artifacts completes the pipeline - at least from the computer science point of view.
BibTeX:
@article{Settgast*07ieeepot,
  author = {Settgast, Volker and Ullrich, Torsten and Fellner, Dieter W.},
  title = {Information Technology for Cultural Heritage},
  journal = {IEEE Potentials},
  year = {2007},
  volume = {26},
  number = {4},
  pages = {38-43},
  note = {doi: 10.1109/MP.2007.4280332}
}
Ullrich, T., Fünfzig, C. & Fellner, D.W., (2007), "Two Different Views On Collision Detection", IEEE Potentials, Vol.26(1), pp.26-30.
Abstract: In this article, we present two algorithms for precise collision detection between two potentially colliding objects. The first one uses axis-aligned bounding boxes (AABB) and is a typical representative of a computational geometry algorithm. The second one uses spherical distance fields originating in image processing. Both approaches address the following challenges of collision detection algorithms: just in time, little resources, inclusive etc. Thus both approaches are scalable in the information they give in collision determination and the analysis up to a fixed refinement level, the collision time depends on the granularity of the bounding volumes and it is also possible to estimate the time bounds for the collision test tightly.
BibTeX:
@article{Ullrich*07ieeepot,
  author = {Ullrich, Torsten and Fünfzig, Christoph and Fellner, Dieter W.},
  title = {Two Different Views On Collision Detection},
  journal = {IEEE Potentials},
  year = {2007},
  volume = {26},
  number = {1},
  pages = {26-30},
  note = {doi: 10.1109/MP.2007.343037}
}
Ullrich, T., Settgast, V., Krispel, U. & Fünfzig, Christophand Fellner, D.W., (2007), "Distance Calculation between a Point and a Subdivision Surface", VMV 2007 Conf. Proc., pp.161-169.
Abstract: This article focuses on algorithms for fast computation of the Euclidean distance between a query point and a subdivision surface. The analyzed algorithms include uniform tessellation approaches, an adaptive evalution technique, and an algorithm using Bezier conversions. These methods are combined with a grid hashing structure for space partitioning to speed up their runtime. The results show that a pretessellated surface is sufficient for small models. Considering the runtime, accuracy and memory usage an adaptive onthe-fly evaluation of the surface turns out to be the best choice.
BibTeX:
@inproceedings{Ullrich*07vmv,
  author = {Ullrich, T. and and Settgast, Volker and Krispel, U. and Fünfzig, Christophand Fellner, Dieter W.},
  title = {Distance Calculation between a Point and a Subdivision Surface},
  booktitle = {VMV 2007 Conf. Proc.},
  year = {2007},
  pages = {161-169}
}
Ullrich, T. & Fellner, D.W., (2007), "Robust Shape Fitting and Semantic Enrichment", CIPA 2007 Conf. Proc., pp.727-732.
Abstract: A robust fitting and reconstruction algorithm has to cope with two major problems. First of all it has to be able to deal with noisy input data and outliers. Furthermore it should be capable of handling multiple data set mixtures. The decreasing exponential approach is robust towards outliers and multiple data set mixtures. It is able to fit a parametric model to a given point cloud. As parametric models use a description which may not only contain a generative shape but information about the inner structure of an object, the presented approach can enrich measured data with an ideal description. This technique offers a wide range of applications.
BibTeX:
@inproceedings{Ullrich-Fellner07cipa,
  author = {Ullrich, T. and Fellner, Dieter W.},
  title = {Robust Shape Fitting and Semantic Enrichment},
  booktitle = {CIPA 2007 Conf. Proc.},
  year = {2007},
  pages = {727-732}
}
Ullrich, T. & Fellner, D.W., (2007), "Client-side Scripting in Blended Learning Environment", ERCIM NEWS, Vol.71(71), pp.43-44.
Abstract: The computer graphics tutorial CGTutorial was developed by the Institute of Computer Graphics and Knowledge Visualization at Graz University of Technology in Austria. It combines a scripting engine and a development environment with Java-based Web technology. The result is a flexible framework which allows algorithms to be developed and studied without the need to install libraries or set up compiler configurations. Together with already written example scripts, the framework is ready to use. Each example script is a small runnable demonstration application that can be started directly within a browser. Using a scripting engine that interprets Java and JavaScript on a client, the demos can be modified and analysed by the user and then restarted. This combination of scripting engines and Web technology is thus a perfect environment for blended learning scenarios.
BibTeX:
@article{Ullrich-Fellner07ercim,
  author = {Ullrich, T. and Fellner, Dieter W.},
  title = {Client-side Scripting in Blended Learning Environment},
  journal = {ERCIM NEWS},
  year = {2007},
  volume = {71},
  number = {71},
  pages = {43-44}
}

2006

Fellner, D.W. & Havemann, S., Spiliopoulou, M., Kruse, R., Borgelt, C., Nürnberger, A. & Gaul, W. (ed.) (2006), "Striving for an adequate vocabulary: Next Generation 'Metadata'", From Data and Information Analysis to Knowledge Engineering, pp.13-20, Springer.
BibTeX:
@incollection{Fellner-Havemann05gfkl,
  author = {Fellner, Dieter W. and Havemann, Sven},
  editor = {M. Spiliopoulou and R. Kruse and C. Borgelt and A. Nürnberger and W. Gaul},
  title = {Striving for an adequate vocabulary: Next Generation 'Metadata'},
  booktitle = {From Data and Information Analysis to Knowledge Engineering},
  publisher = {Springer},
  year = {2006},
  pages = {13-20},
  note = {doi: 10.1007/3-540-31314-12}
}
Fünfzig, C., Ullrich, T. & Fellner, D.W., (2006), "Hierarchical Spherical Distance Fields for Collision Detection", IEEE CG&A, Vol.26(1), pp.64-74.
Abstract: This article presents a fast collision detection technique for all types of rigid bodies, demonstrated using polygon soups. The new approach uses spherical distance fields, which are stored in a compact representation.
BibTeX:
@article{Fuenfzig*06ieeecga,
  author = {Fünfzig, Ch. and Ullrich, T. and Fellner, Dieter W.},
  title = {Hierarchical Spherical Distance Fields for Collision Detection},
  journal = {IEEE CG&A},
  year = {2006},
  volume = {26},
  number = {1},
  pages = {64-74},
  note = {http://doi.ieeecomputersociety.org/10.1109/MCG.2006.17}
}
Havemann, S., Settgast, V., Krottmaier, H. & Fellner, D.W., (2006), "On the Integration of 3D Models into Digital Cultural Heritage Libraries", Proc. VAST 2006 Intl. Symp., pp.161-169, Eurographics.
Abstract: This paper discusses the integration of 3D data in the traditional CH workflow, which is a complex issue with many different aspects. First, the notion '3D data' must be defined appropriately, since 3D may range from raw datasets of individual artifacts to complete virtual worlds including storytelling and animations. Second, a suitable 3D format must be identified among the various, and very different, possible options. Third, the chosen format needs to be supported by all tools and technologies used in the CH tool chain: all the way from the field excavation over presentation in museum exhibitions, over secondary exploitation and database access, to the sustainable longtime archival of digitized artifacts. An integrated solution to this complex problem will be possible only through the tight combination of two basic technologies: 3D scenegraphs and XML
BibTeX:
@inproceedings{Havemann*06vast,
  author = {Havemann, Sven and Settgast, Volker and Krottmaier, Harald and Fellner, Dieter W.},
  title = {On the Integration of 3D Models into Digital Cultural Heritage Libraries},
  booktitle = {Proc. VAST 2006 Intl. Symp.},
  publisher = {Eurographics},
  year = {2006},
  pages = {161--169}
}
Lancelle, M., Offen, L., Ullrich, T., Techmann, T. & Fellner, D.W., (2006), "Minimally Invasive Projector Calibration for 3D Applications", Proc. GI Workshop Virtuelle und Erweiterte Realität, pp.193-201.
Abstract: Addressing the typically time consuming adjustment of projector equipment in VR installations we propose an easy to implement projector calibration method that effectively corrects images projected onto planar surfaces and which does not require any additional hardware. For hardware accelerated 3D applications only the projection matrix has to be modified slightly thus there is no performance impact and existing applications can be adopted easily.
BibTeX:
@inproceedings{Lancelle*06giarvr,
  author = {Lancelle, Marcel and Offen, Lars and Ullrich, Torsten and Techmann, Torsten and Fellner, Dieter W.},
  title = {Minimally Invasive Projector Calibration for 3D Applications},
  booktitle = {Proc. GI Workshop Virtuelle und Erweiterte Realität},
  year = {2006},
  pages = {193--201}
}
Müller, K., Reusche, L. & Fellner, D.W., (2006), "Extended Subdivision Surfaces: Building a bridge between NURBS and Catmull-Clark Surfaces", ACM Transactions on Graphics, Vol.25(2), pp.268-292.
BibTeX:
@article{Mueller*05tog,
  author = {Kerstin Müller and Lars Reusche and Dieter W. Fellner},
  title = {Extended Subdivision Surfaces: Building a bridge between NURBS and Catmull-Clark Surfaces},
  journal = {ACM Transactions on Graphics},
  year = {2006},
  volume = {25},
  number = {2},
  pages = {268-292},
  note = {doi: 10.1145/1138450.1138455}
}
Posch, K.-C. & Fellner, D., (2006), "Schwerpunktbildung rechnet sich: Informatik an der TU Graz führt österreichischen IT-Wettbewerb an", Forschungsjournal der Technischen Universität Graz, Vol.SS06, pp.17.
BibTeX:
@article{Posch-Fellner06,
  author = {K.-C. Posch and D. Fellner},
  title = {Schwerpunktbildung rechnet sich: Informatik an der TU Graz führt österreichischen IT-Wettbewerb an},
  journal = {Forschungsjournal der Technischen Universität Graz},
  year = {2006},
  volume = {SS06},
  pages = {17}
}

2005

Berndt, R., Fellner, D.W. & Havemann, S., (2005), "Generative 3D Models: A Key to More Information within Less Bandwidth at Higher Quality", Proc. Web3D 2005 Intl. Symp., pp.111-122, ACM Siggraph.
BibTeX:
@inproceedings{Berndt*05web3d,
  author = {Berndt, Rene and Fellner, Dieter W. and Havemann, Sven},
  title = {Generative 3D Models: A Key to More Information within Less Bandwidth at Higher Quality},
  booktitle = {Proc. Web3D 2005 Intl. Symp.},
  publisher = {ACM Siggraph},
  year = {2005},
  pages = {111-122},
  note = {http://doi.acm.org/10.1145/1050491.1050508}
}
Gerth, B., Berndt, R., Havemann, S. & Fellner, D.W., (2005), "3D Modeling for Non-Expert Users with the Castle Construction Kit v0.5", Proc. VAST 2005 Intl. Symp., pp.49-57, Eurographics.
BibTeX:
@inproceedings{Gerth*05vast,
  author = {Gerth, Björn and Berndt, Rene and Havemann, Sven and Fellner, Dieter W.},
  title = {3D Modeling for Non-Expert Users with the Castle Construction Kit v0.5},
  booktitle = {Proc. VAST 2005 Intl. Symp.},
  publisher = {Eurographics},
  year = {2005},
  pages = {49-57},
  note = {doi: 10.2312/VAST/VAST05/049-057}
}
Halm, A., Offen, L. & Fellner, D., (2005), "BioBrowser: A Framework for Fast Protein Visualization", Proc. EUROGRAPHICS -- IEEE VGTC Symposium on Visualization, pp.287-294, Eurographics.
Abstract: This paper presents a protein visualization system called BioBrowser, which provides high quality images at interactive frame rates for molecules of extreme size and complexity. This is achieved by a shift in the tessellation approach: triangle meshes are not produced a priori on a 'just-in-case' basis. Instead, tessellation happens 'justin- time' given a certain camera position, image size and interaction demand. Thus, our approach is based on multiresolution meshes and on new extensions of graphics hardware. The paper shows how to reduce geometric data by using subdivision surfaces for ribbon structures and molecular surfaces and by using billboards instead of spheres consisting of triangles. It also shows how to use fragment shaders to create a three dimensional appearance and realistic sphere intersections. The combination of these approaches leads to an image quality not yet seen in interactive visualization environments for molecules of that size/complexity. All the above methods are combined to gain a high performance configurable visualization system on standard hardware.
BibTeX:
@inproceedings{Halm*05eurovis,
  author = {Halm, A. and Offen, L. and Fellner, D.},
  title = {BioBrowser: A Framework for Fast Protein Visualization},
  booktitle = {Proc. EUROGRAPHICS -- IEEE VGTC Symposium on Visualization},
  publisher = {Eurographics},
  year = {2005},
  pages = {287-294},
  note = {doi:10.2312/VisSym/EuroVis05/287-294}
}
Havemann, S. & Fellner, D.W., Tochtermann, K. & Maurer, H. (ed.) (2005), "Managing Procedural Knowledge", Proc. 5th International Conference on Knowledge Management (I-KNOW'05), pp.248-255, Springer.
BibTeX:
@inproceedings{Havemann-Fellner05iknow,
  author = {Havemann, Sven and Fellner, Dieter W.},
  editor = {K. Tochtermann and H. Maurer},
  title = {Managing Procedural Knowledge},
  booktitle = {Proc. 5th International Conference on Knowledge Management (I-KNOW'05)},
  publisher = {Springer},
  year = {2005},
  pages = {248-255}
}
Kim, H., Albuquerque, G., Havemann, S. & Fellner, D.W., (2005), "Tangible 3D: Hand Gesture Interaction for Immersive 3D Modeling", Proc. Virtual Environments 2005, pp.191-199, Eurographics.
BibTeX:
@inproceedings{Kim*05egve,
  author = {Kim, Hyosun and Albuquerque, Georgia and Havemann, Sven and Fellner, Dieter W.},
  title = {Tangible 3D: Hand Gesture Interaction for Immersive 3D Modeling},
  booktitle = {Proc. Virtual Environments 2005},
  publisher = {Eurographics},
  year = {2005},
  pages = {191-199},
  note = {doi:10.2312/EGVE/IPT$$EGVE2005/191-199}
}
Ullrich, T. & Fellner, D.W., (2005), "Computer Graphics Courseware", Eurographics 2005 -- Education Papers, pp.11-17, Eurographics Association.
Abstract: A lot of courseware tools suffer from the almost mutually exclusive goals of ease of usability on the one hand and extensibility and flexibility on the other hand. In most cases the tools are either ready-to-use applications (e.g. a virtual lab) or complex tool sets which need a long period of domain-specific adjustment. This paper presents the courseware environment AlgoViz which primarily addresses this problem. The AlgoViz project provides a software collection which is currently focused on the visualization of fundamental computer graphics algorithms and geometric modeling concepts. The intention is to build a collection of components, that can easily be combined to new applications. Supporting a purely visual programming paradigm, AlgoViz offers the possibility to create new demonstration applications without having to write a single line of source code. To demonstrate its potential AlgoViz comes with a variety of examples already forming a valuable computer graphics tutorial.
BibTeX:
@inproceedings{Ullrich-Fellner05eg,
  author = {Ullrich, T. and Fellner, Dieter W.},
  title = {Computer Graphics Courseware},
  booktitle = {Eurographics 2005 -- Education Papers},
  publisher = {Eurographics Association},
  year = {2005},
  pages = {11-17},
  note = {doi: 10.2312/Conf/EG2005/Education/011-017}
}

2004

Day, A., Arnold, D.B., Havemann, S. & Fellner, D.W., (2004), "Combining Polygonal and Subdivision Surface approaches toModelling of Urban Environments", Computers & Graphics, Vol.28(4), pp.497-508.
BibTeX:
@article{Day*04cw-compgraph,
  author = {Day, Andy and Arnold, David B. and Havemann, Sven and Fellner, Dieter W.},
  title = {Combining Polygonal and Subdivision Surface approaches toModelling of Urban Environments},
  journal = {Computers & Graphics},
  year = {2004},
  volume = {28},
  number = {4},
  pages = {497-508},
  note = {doi:10.1016/j.cag.2004.04.005}
}
Halm, A., Offen, L. & Fellner, D., (2004), "Visualization of Complex Molecular Ribbon Structures at Interactive Rates", 8th Intl. Conf. on Information Visualization IV'04, pp.737-744, IEEE Computer Society.
Abstract: The increasing size of protein data available in internet databases demands new fast methods of visualization. This paper introduces a novel visualization technique for molecular ribbon structures. The method is based on Combined BReps -- a mesh structure defining a combination of polygonal faces and Catmull/Clark surfaces. Our technique provides high frame rates when interactively moving through structures of highest complexity as well as high quality images when the viewpoint remains static.
BibTeX:
@inproceedings{Halm*04iv,
  author = {Halm, A. and Offen, L. and Fellner, D.},
  title = {Visualization of Complex Molecular Ribbon Structures at Interactive Rates},
  booktitle = {8th Intl. Conf. on Information Visualization IV'04},
  publisher = {IEEE Computer Society},
  year = {2004},
  pages = {737-744},
  note = {doi:10.1109/IV.2004.148}
}
Havemann, S., Fellner, D.W., Day, A. & Arnold, D.B., (2004), "New Approaches to Efficient Rendering of Complex Reconstructed Environments", Proc. VAST 2003 Intl. Symp., pp.185-193, Eurographics.
BibTeX:
@inproceedings{Havemann*03vast,
  author = {Havemann, Sven and Fellner, Dieter W. and Day, Andy and Arnold, David B.},
  title = {New Approaches to Efficient Rendering of Complex Reconstructed Environments},
  booktitle = {Proc. VAST 2003 Intl. Symp.},
  publisher = {Eurographics},
  year = {2004},
  pages = {185-193},
  note = {doi: 10.2312/VAST/VAST03/185-194}
}
Havemann, S. & Fellner, D.W., Giannini, F. & Pasko, A. (ed.) (2004), "Generative Parametric Design of Gothic Window Tracery", Proc. Intl. Shape Modeling & Applications (SMI'04), pp.350-354, IEEE CS Press.
BibTeX:
@inproceedings{Havemann-Fellner04smi,
  author = {Havemann, Sven and Fellner, Dieter W.},
  editor = {F. Giannini and A. Pasko},
  title = {Generative Parametric Design of Gothic Window Tracery},
  booktitle = {Proc. Intl. Shape Modeling & Applications (SMI'04)},
  publisher = {IEEE CS Press},
  year = {2004},
  pages = {350-354},
  note = {doi: 10.1109/SMI.2004.37}
}
Havemann, S. & Fellner, D.W., Cain, K., Chrysanthou, Y., Niccolucci, F. & Silberman, N. (ed.) (2004), "Generative Parametric Design of Gothic Window Tracery", Proc. VAST 2004 Intl. Symp., pp.193-201, Eurographics.
BibTeX:
@inproceedings{Havemann-Fellner04vast,
  author = {Havemann, Sven and Fellner, Dieter W.},
  editor = {K. Cain and Y. Chrysanthou and F. Niccolucci and N. Silberman},
  title = {Generative Parametric Design of Gothic Window Tracery},
  booktitle = {Proc. VAST 2004 Intl. Symp.},
  publisher = {Eurographics},
  year = {2004},
  pages = {193--201},
  note = {doi: 10.2312/VAST/VAST04/193-201}
}
Kim, H. & Fellner, D.W., (2004), "Interaction with Hand Gesture for a Back-Projection Wall", Proc. Computer Graphics International 2004, pp.395-402, IEEE CS Press.
BibTeX:
@inproceedings{Kim-Fellner04cgi,
  author = {Kim, Hyosun and Fellner, Dieter W.},
  title = {Interaction with Hand Gesture for a Back-Projection Wall},
  booktitle = {Proc. Computer Graphics International 2004},
  publisher = {IEEE CS Press},
  year = {2004},
  pages = {395-402},
  note = {doi:10.1109/CGI.2004.59}
}
Lancelle, M. & Fellner, D.W., (2004), "Current issues on 3D city models", Proceedings of Image and Vision Computing, pp.363-368.
Abstract: This research covers issues of automatic generation and visualization of a 3D city model using existing digital data. Air photos, LIDAR point clouds and soil usage and cadastral maps are used as data sources for the automated data fusion in a sample implementation. Combining existing techniques and new ideas, the developed framework enables automatic information enrichment and generation of plausible details. Data conversion, model generation and real time visualization are achieved using a standard PC for the whole area of 200km^2. Real world data was used including all the practical problems involved.
BibTeX:
@inproceedings{Lancelle-Fellner04ivc,
  author = {M. Lancelle and D.~W. Fellner},
  title = {Current issues on 3D city models},
  booktitle = {Proceedings of Image and Vision Computing},
  year = {2004},
  pages = {363--368}
}
Reiners, D., Fellner, D.W., Kautz, J. & Klein, R. (ed.) (2004), "OpenSG Plus", Computers & Graphics.
BibTeX:
@inbook{Reiners*04,,
  editor = {D. Reiners and D. W. Fellner and J. Kautz and R. Klein},
  title = {OpenSG Plus},
  publisher = {Computers & Graphics},
  year = {2004},
  note = {doi: 10.1016/j.cag.2003.10.003}
}
Settgast, V., Müller, K., Fünfzig, C. & Fellner, D.W., (2004), "Adaptive Tessellation of Subdivision Surfaces", Computers & Graphics, Vol.28(1), pp.73-78.
Abstract: The need for realistic models especially in virtual reality environments leads us to freeform shapes like subdivision surfaces. Based on a standard polygonal mesh, the modeller can build various kinds of shapes using an arbitrary topology and special geometrical features like creases. Nowadays, it also is a part of most standard modelling packages like Maya and 3DStudio Max. However, the interactive display of subdivision surfaces in current scenegraph systems as static level-of-details is unpractical, because of the exponentially increasing number of polygons during the subdivision steps. Therefore an adaptive algorithm, choosing only the necessary quads and triangles, is required to obtain good looking images at high framerates. In this paper we present a rendering algorithm considering the static surface properties like curvature as well as viewdependent properties like silhouette location and projection size. Without modifying the basis mesh, the method works patchwise and tesselates each patch recursively using a new datastructure, called Slate. We show that the algorithm can be implemented efficiently using direct OpenGL. In comparison we consider the algorithm's integration into the scenegraph system OpenSG, where the scenegraph node feeds into an indexed-face-set node.
BibTeX:
@article{Settgast*04cg,
  author = {Volker Settgast and Kerstin Müller and Christoph Fünfzig and Dieter W. Fellner},
  title = {Adaptive Tessellation of Subdivision Surfaces},
  journal = {Computers & Graphics},
  year = {2004},
  volume = {28},
  number = {1},
  pages = {73-78},
  note = {doi: 10.1016/j.cag.2003.10.006}
}
Ullrich, T. & Fellner, D.W., Engels, G. & Seehusen, S. (ed.) (2004), "Modulare Inhaltserzeugung nach dem Baukastenprinzip", Proc. DelFI~2004, 2. e-Learning Fachtagung Informatik der Gesellschaft für Informatik, pp.405-406, Gesellschaft für Informatik.
Abstract: Das Projekt AlgoViz besch?ftigt sich mit der Visualisierung von Algorithmen und bereichert damit die Lehre in der graphischen Datenverarbeitung. Das Ziel soll keine abgeschlossene Sammlung vorgefertigter Beispiele sein, sondern eine f?r Erweiterungen offene Umgebung wohl aufeinander abgestimmter Komponenten, die sich nach dem Baukastenprinzip zusammenf?gen lassen. Dabei richtet sich das Projekt vornehmlich an Dozenten, die ihre Lehrveranstaltungen um Demonstrationsbeispiele bereichern wollen, aber auch an Studenten, die dieses Rahmenger?st f?r Programmieraufgaben nutzen k?nnen.
BibTeX:
@inproceedings{Ullrich-Fellner04DelFI,
  author = {Ullrich, T. and Fellner, Dieter W.},
  editor = {Gregor Engels and Silke Seehusen},
  title = {Modulare Inhaltserzeugung nach dem Baukastenprinzip},
  booktitle = {Proc. DelFI~2004, 2. e-Learning Fachtagung Informatik der Gesellschaft für Informatik},
  publisher = {Gesellschaft für Informatik},
  year = {2004},
  pages = {405-406}
}
Ullrich, T. & Fellner, D.W., (2004), "AlgoViz -- a Computer Graphics Algorithm Visualization Toolkit", Proc. ED-MEDIA~2004, World Conference on Educational Multimedia,Hypermedia & Telecommunications, pp.941-948, Association for the Advancement of Computingin Education.
Abstract: This paper presents the new software environment AlgoViz, which enriches computer graphics teachings in a novel way. The AlgoViz project provides a software environment, which is currently focused on the visualization of fundamental computer graphics algorithms and geometric modeling concepts. The intention is not to build yet another static collection of ready-made example applications, whose rigid concept neither permits creativity nor enhancements, but a platform of components, that can be easily combined to new applications. Using a purely visual programming paradigm, AlgoViz offers the possibility to create new demo applications without having to write a single line of source code. The building block concept provides full programming capabilities and flexibility despite its easy handling. Therefore, the project simultaneously supports two user groups: lecturers, who want to visualize algorithms efficiently, and students, who need to familiarize themselves with computer graphics algorithms at all levels. Hence, the possible range of applications can vary from creating interactive demos for a lecture to composing Java Applets for a drill-and-practice graphics lab where students work on their own.
BibTeX:
@inproceedings{Ullrich-Fellner04edmedia,
  author = {Ullrich, T. and Fellner, Dieter W.},
  title = {AlgoViz -- a Computer Graphics Algorithm Visualization Toolkit},
  booktitle = {Proc. ED-MEDIA~2004, World Conference on Educational Multimedia,Hypermedia & Telecommunications},
  publisher = {Association for the Advancement of Computingin Education},
  year = {2004},
  pages = {941-948}
}

2003

Day, A., Arnold, D.B., Havemann, S. & Fellner, D.W., (2003), "Combining Polygonal and Subdivision Surface approaches to Modelling of Urban Environments", Proc. Cyberworlds 2003 Intl. Conf., pp.189-196, IEEE Computer Society.
BibTeX:
@inproceedings{Day*03cw,
  author = {Day, Andy and Arnold, David B. and Havemann, Sven and Fellner, Dieter W.},
  title = {Combining Polygonal and Subdivision Surface approaches to Modelling of Urban Environments},
  booktitle = {Proc. Cyberworlds 2003 Intl. Conf.},
  publisher = {IEEE Computer Society},
  year = {2003},
  pages = {189-196},
  note = {http://doi.ieeecomputersociety.org/10.1109/CYBER.2003.1253453}
}
Brunet, P. & Fellner, D.W. (ed.) (2003), "EUROGRAPHICS 2003", Vol.22, Blackwell Publishers.
BibTeX:
@proceedings{EG2003,,
  editor = {Brunet, Pere and Fellner, Dieter W.},
  title = {EUROGRAPHICS 2003},
  publisher = {Blackwell Publishers},
  year = {2003},
  volume = {22}
}
Fellner, D.W., Havemann, S. & Hopp, A., Möller, R. (ed.) (2003), "DAVE -- Eine neue Technologie zur preiswerten und hochqualitativen immersiven 3D-Darstellung", Proc. 8. Workshop: Sichtsysteme -- Visualisierung in der Simulationstechnik, pp.77-87.
BibTeX:
@inproceedings{Fellner*03,
  author = {Fellner, Dieter W. and Havemann, Sven and Hopp, Armin},
  editor = {Reinhard Möller},
  title = {DAVE -- Eine neue Technologie zur preiswerten und hochqualitativen immersiven 3D-Darstellung},
  booktitle = {Proc. 8. Workshop: Sichtsysteme -- Visualisierung in der Simulationstechnik},
  year = {2003},
  pages = {77-87}
}
Fünfzig, C. & Fellner, D.W., (2003), "Easy Realignment of k-DOP Bounding Volumes", Proc. Graphics Interface 2003, Canadian Human-Computer Commun. Soc. / Morgan Kaufmann.
BibTeX:
@inproceedings{Fuenfzig-Fellner03a,
  author = {Fünfzig, Ch. and Fellner, D. W.},
  title = {Easy Realignment of k-DOP Bounding Volumes},
  booktitle = {Proc. Graphics Interface 2003},
  publisher = {Canadian Human-Computer Commun. Soc. / Morgan Kaufmann},
  year = {2003},
  note = {http://www.graphicsinterface.org/proceedings/2003/117/}
}
Müller, K., Techmann, T. & Fellner, D.W., (2003), "Adaptive Ray Tracing of Subdivision Surfaces", Computer Graphics Forum, Vol.22(3), pp.553-562.
BibTeX:
@article{Mueller*03a,
  author = {Müller, Kerstin and Techmann, Torsten and Fellner, Dieter W.},
  title = {Adaptive Ray Tracing of Subdivision Surfaces},
  journal = {Computer Graphics Forum},
  year = {2003},
  volume = {22},
  number = {3},
  pages = {553-562},
  note = {Proc. Eurographics'2003 Conf., doi: 10.1111/1467-8659.t01-2-00703}
}
Neumann, T., Fünfzig, C. & Fellner, D., Reiners, D. (ed.) (2003), "TRIPS -- A Scalable Spatial Sound Library for OpenSG", OpenSG 2003 -- Concepts and Components of Software Frameworks for Interactive 3D Graphics, pp.57-64.
BibTeX:
@inproceedings{Neumann*03,
  author = {Tomas Neumann and Christoph Fünfzig and Dieter Fellner},
  editor = {Dirk Reiners},
  title = {TRIPS -- A Scalable Spatial Sound Library for OpenSG},
  booktitle = {OpenSG 2003 -- Concepts and Components of Software Frameworks for Interactive 3D Graphics},
  year = {2003},
  pages = {57-64},
  note = {ISBN 3-905673-53-3, available from http://diglib.eg.org}
}
Settgast, V., Müller, K., Fünfzig, C. & Fellner, D., Reiners, D. (ed.) (2003), "Adaptive Tessellation of Subdivision Surfaces in OpenSG", OpenSG 2003 -- Concepts and Components of Software Frameworks for Interactive 3D Graphics, pp.39-48.
Abstract: The need for realistic models especially in virtual reality environments leads us to freeform shapes like subdivision surfaces. Based on a standard polygonal mesh, the modeller can build various kinds of shapes using an arbitrary topology and special geometrical features like creases. Nowadays, it also is a part of most standard modelling packages like Maya and 3DStudio Max. However, the interactive display of subdivision surfaces in current scenegraph systems as static level-of-details is unpractical, because of the exponentially increasing number of polygons during the subdivision steps. Therefore an adaptive algorithm, choosing only the necessary quads and triangles, is required to obtain good looking images at high framerates. In this paper we present a rendering algorithm considering the static surface properties like curvature as well as viewdependent properties like silhouette location and projection size. Without modifying the basis mesh, the method works patchwise and tesselates each patch recursively using a new datastructure, called Slate. We show that the algorithm can be implemented efficiently using direct OpenGL. In comparison we consider the algorithm's integration into the scenegraph system OpenSG, where the scenegraph node feeds into an indexed-face-set node.
BibTeX:
@inproceedings{Settgast*03,
  author = {Volker Settgast and Kerstin Müller and Christoph Fünfzig and Dieter Fellner},
  editor = {Dirk Reiners},
  title = {Adaptive Tessellation of Subdivision Surfaces in OpenSG},
  booktitle = {OpenSG 2003 -- Concepts and Components of Software Frameworks for Interactive 3D Graphics},
  year = {2003},
  pages = {39-48},
  note = {ISBN 3-905673-53-3, available from http://diglib.eg.org/EG/DL/PE/OPENSG03/05settgast.pdf}
}

2002

Fellner, D.W. & Bono, P. (ed.) (2002), "Computer Graphics -- Enabling Technology for the Information Society", Vol.26, 4, Elsevier.
BibTeX:
@book{Fellner-Bono02,,
  editor = {Fellner, Dieter W. and Bono, Peter},
  title = {Computer Graphics -- Enabling Technology for the Information Society},
  publisher = {Elsevier},
  year = {2002},
  volume = {26, 4}
}
Fellner, D.W. & Havemann, S., Leberl, F. & Teller, S. (ed.) (2002), "Digital Libraries", Proc. EWV02 -- East-West-Vision 2002, pp.213-221, OCG.
BibTeX:
@inproceedings{Fellner-Havemann02,
  author = {Fellner, Dieter W. and Havemann, Sven},
  editor = {Leberl, Franz and Teller, Seth},
  title = {Digital Libraries},
  booktitle = {Proc. EWV02 -- East-West-Vision 2002},
  publisher = {OCG},
  year = {2002},
  pages = {213-221}
}
Fellner, D.W. & Schönhut, J., Blachetta, P. (ed.) (2002), "Graphische Datenverarbeitung $1975-2000$: Die Europäische Sicht", Entwicklung der Graphischen Datenverarbeitung seit 1975, pp.III-31 - III-35, INI-Publications.
BibTeX:
@incollection{Fellner-Schoenhut02,
  author = {Fellner, Dieter W. and Schönhut, J.},
  editor = {Blachetta, Petra},
  title = {Graphische Datenverarbeitung $1975-2000$: Die Europäische Sicht},
  booktitle = {Entwicklung der Graphischen Datenverarbeitung seit 1975},
  publisher = {INI-Publications},
  year = {2002},
  pages = {III-31 -- III-35},
  note = {ISBN 3-8167-6145-3}
}
Havemann, S. & Fellner, D.W., (2002), "A versatile 3D Model Representation for Cultural Reconstruction", Proc. VAST 2001 Intl. Symp., pp.213-221, ACM Siggraph.
BibTeX:
@inproceedings{Havemann-Fellner02,
  author = {Havemann, Sven and Fellner, Dieter W.},
  title = {A versatile 3D Model Representation for Cultural Reconstruction},
  booktitle = {Proc. VAST 2001 Intl. Symp.},
  publisher = {ACM Siggraph},
  year = {2002},
  pages = {213-221},
  note = {doi: 10.1145/584993.585025}
}
Havemann, S., (2002), "Interactive Rendering of Catmull/Clark Surfaces with Crease Edges", Visual Computer, Vol.18(5-6), pp.286-298.
BibTeX:
@article{Havemann02,
  author = {Sven Havemann},
  title = {Interactive Rendering of Catmull/Clark Surfaces with Crease Edges},
  journal = {Visual Computer},
  year = {2002},
  volume = {18},
  number = {5-6},
  pages = {286-298}
}
Havemann, S., (2002), "Interactive rendering of Catmull/Clark surfaces with crease edges", The Visual Computer, Vol.18, pp.286-298.
BibTeX:
@article{Havemann2002vc,
  author = {Sven Havemann},
  title = {Interactive rendering of Catmull/Clark surfaces with crease edges},
  journal = {The Visual Computer},
  year = {2002},
  volume = {18},
  pages = {286-298},
  note = {doi: 10.1007/s003710100151}
}

2001

Fellner, D.W. (ed.) (2001), "Seminal Contributions from COMPUTERS & GRAPHICS", Elsevier.
BibTeX:
@book{Fellner-CG-01,,
  editor = {Fellner, Dieter W.},
  title = {Seminal Contributions from COMPUTERS & GRAPHICS},
  publisher = {Elsevier},
  year = {2001}
}
Fellner, D.W., (2001), "Graphics Content in Digital Libraries:Old Problems, Recent Solutions, Future Demands", Journal of Universal Computer Science, Vol.7(5), pp.400-409.
BibTeX:
@article{Fellner01a,
  author = {Fellner, Dieter W.},
  title = {Graphics Content in Digital Libraries:Old Problems, Recent Solutions, Future Demands},
  journal = {Journal of Universal Computer Science},
  year = {2001},
  volume = {7},
  number = {5},
  pages = {400-409}
}
Löffler, J. & Fellner, D.W., (2001), "Adaptive Visualization of distributed 3D Documents using Image Streaming Techniques", Multimedia 2001, pp.9-19, Springer.
BibTeX:
@inproceedings{Loeffler-Fellner01,
  author = {Jobst Löffler and Dieter W. Fellner},
  title = {Adaptive Visualization of distributed 3D Documents using Image Streaming Techniques},
  booktitle = {Multimedia 2001},
  publisher = {Springer},
  year = {2001},
  pages = {9-19},
  note = {http://diglib.eg.org/EG/DL/WS/egmm01/loeffler.pdf}
}

2000

Endres, A. & Fellner, D.W., (2000), "Digitale Bibliotheken -- Informatik-Lösungen für globale Wissensmärkte", dpunkt.verlag.
BibTeX:
@book{Endres-Fellner00,
  author = {Endres, Albert and Fellner, Dieter W.},
  title = {Digitale Bibliotheken -- Informatik-Lösungen für globale Wissensmärkte},
  publisher = {dpunkt.verlag},
  year = {2000}
}
Fellner, D.W., Haber, Jö., Havemann, S., Kobbelt, L., Lensch, H.P.A., Müller, G., Peter, I., Schneider, R., Seidel, H.-P. & Straßer, W., (2000), "Beiträge der Computergraphik zur Realisierung eines verallgemeinerten Dokumentenbegriffs", it+ti Informationstechnik und Technische Informatik, Vol.42(6), pp.8-16.
BibTeX:
@article{Fellner*00,
  author = {Fellner, Dieter W. and Haber, Jörg and Havemann, Sven and Kobbelt, Leif and Lensch, Hendrik P. A. and Müller, Gordon and Peter, Ingmar and Schneider, Robert and Seidel, Hans-Peter and Straßer, Wolfgang},
  title = {Beiträge der Computergraphik zur Realisierung eines verallgemeinerten Dokumentenbegriffs},
  journal = {it+ti Informationstechnik und Technische Informatik},
  year = {2000},
  volume = {42},
  number = {6},
  pages = {8-16}
}
Fellner, D.W. (ed.) (2000), "Verteilte Verarbeitung und Vermittlung Digitaler Dokumente (V3D2) -- Ein DFG-Schwerpunktprogramm zur Verstärkung der Grundlagenforschung im Bereich digitaler Bibliotheken", Vol.42, 6, Oldenbourg.
BibTeX:
@proceedings{Fellner-itti-00,,
  editor = {Fellner, Dieter W.},
  title = {Verteilte Verarbeitung und Vermittlung Digitaler Dokumente (V3D2) -- Ein DFG-Schwerpunktprogramm zur Verstärkung der Grundlagenforschung im Bereich digitaler Bibliotheken},
  publisher = {Oldenbourg},
  year = {2000},
  volume = {42, 6}
}
Fellner, D.W. & Zens, M., (2000), "Electronic Submission, Management and Approval of Grant Proposals at the German Research Foundation based on Standard Internet and Office Tools", Journal of Universal Computer Science, Vol.6(3), pp.356-366.
BibTeX:
@article{Fellner-Zens00,
  author = {Fellner, Dieter W. and Zens, Marco},
  title = {Electronic Submission, Management and Approval of Grant Proposals at the German Research Foundation based on Standard Internet and Office Tools},
  journal = {Journal of Universal Computer Science},
  year = {2000},
  volume = {6},
  number = {3},
  pages = {356-366}
}
Müller, G., Schäfer, S. & Fellner, D.W., (2000), "Automatic Creation of Object Hierarchies for Radiosity Clustering", Computer Graphics Forum, Vol.19(4), pp.213-221.
BibTeX:
@article{Mueller*00,
  author = {Müller, Gordon and Schäfer, Stephan and Fellner, Dieter W.},
  title = {Automatic Creation of Object Hierarchies for Radiosity Clustering},
  journal = {Computer Graphics Forum},
  year = {2000},
  volume = {19},
  number = {4},
  pages = {213-221},
  note = {doi: 10.1111/1467-8659.00458}
}
Müller, K. & Havemann, S., (2000), "Subdivision surface tesselation on the fly using a versatile meshdata structure", Computer Graphics Forum, Vol.19(3), pp.C151-C159.
BibTeX:
@article{Mueller-Havemann00,
  author = {Müller, Kerstin and Havemann, Sven},
  title = {Subdivision surface tesselation on the fly using a versatile meshdata structure},
  journal = {Computer Graphics Forum},
  year = {2000},
  volume = {19},
  number = {3},
  pages = {C151-C159},
  note = {Proc. Eurographics'2000 Conf., doi: 10.1111/1467-8659.00407}
}
Puzicha, J., Held, M., Ketterer, J., Buhmann, J. & Fellner, D., (2000), "On Spatial Quantization of Color Images", IEEE Transactions on Image Processing, Vol.9(4), pp.666-682.
BibTeX:
@article{Puzicha*00,
  author = {Jan Puzicha and Marcus Held and Jens Ketterer and Joachim Buhmann and Dieter Fellner},
  title = {On Spatial Quantization of Color Images},
  journal = {IEEE Transactions on Image Processing},
  year = {2000},
  volume = {9},
  number = {4},
  pages = {666--682},
  note = {doi: 10.1109/83.841942}
}

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