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Displaying 1-20 out of 20 total
Deformation-Aware Split Grammars for Architectural Models
Found in: 2013 International Conference on Cyberworlds (CW)
By Rene Zmugg,Wolfgang Thaller,Ulrich Krispel,Johannes Edelsbrunner,Sven Havemann,Dieter W. Fellner
Issue Date:October 2013
pp. 4-11
With the current state of video games growing in scale, manual content creation may no longer be feasible in the future. Split grammars are a promising technology for large scale procedural generation of urban structures, which are very common in video gam...
An Effective Dynamic Scheduling Runtime and Tuning System for Heterogeneous Multi and Many-Core Desktop Platforms
Found in: High Performance Computing and Communications, 10th IEEE International Conference on
By Alécio P. D. Binotto,Carlos E. Pereira,Arjan Kuijper,André Stork,Dieter W. Fellner
Issue Date:September 2011
pp. 78-85
A personal computer can be considered as a one-node heterogeneous cluster that simultaneously processes several application tasks. It can be composed by, for example, asymmetric CPU and GPUs. This way, a high-performance heterogeneous platform is built on ...
Effective Dynamic Scheduling on Heterogeneous Multi/Manycore Desktop Platforms
Found in: Computer Architecture and High Performance Computing Workshops, International Symposium on
By Alécio P.D. Binotto, Bernardo M.V. Pedras, Marcelo Göetz, Arjan Kuijper, Carlos E. Pereira, André Stork, Dieter W. Fellner
Issue Date:October 2010
pp. 37-42
GPUs (Graphics Processing Units) have become one of the main co-processors that contributed to desktops towards high performance computing. Together with multicore CPUs and other co-processors, a powerful heterogeneous execution platform is built on a desk...
Towards dynamic reconfigurable load-balancing for hybrid desktop platforms
Found in: Parallel and Distributed Processing Workshops and PhD Forum, 2011 IEEE International Symposium on
By Alecio P. D. Binotto,Carlos E. Pereira,Dieter W. Fellner
Issue Date:April 2010
pp. 1-4
High-performance platforms are required by applications that use massive calculations. Actually, desktop accelerators (like the GPUs) form a powerful heterogeneous platform in conjunction with multi-core CPUs. To improve application performance on these hy...
Guest Editors' Introduction: 3D Documents
Found in: IEEE Computer Graphics and Applications
By Dieter W. Fellner, Dietmar Saupe, Harald Krottmaier
Issue Date:July 2007
pp. 20-21
The guest editors of this special issue describe the research problems in the field and the four articles they've chosen for the issue.
Seven Research Challenges of Generalized 3D Documents
Found in: IEEE Computer Graphics and Applications
By Sven Havemann, Dieter W. Fellner
Issue Date:May 2007
pp. 70-76
A number of unsolved questions concern the deep integration of 3D objects as new type of generalized document into digital libraries. In a few years, massive problems in 3D data management will be the immediate consequence as the widespread use of 3D techn...
Hierarchical Spherical Distance Fields for Collision Detection
Found in: IEEE Computer Graphics and Applications
By Christoph Fünfzig, Torsten Ullrich, Dieter W. Fellner
Issue Date:January 2006
pp. 64-74
This article presents a fast collision detection technique for all types of rigid bodies demonstrated with polygon soups. During the preprocessing step, a spherical sampling of the model is performed and then stored in a wavelet-like representation. This r...
Interaction with Hand Gesture for a Back-Projection Wall
Found in: Computer Graphics International Conference
By Hyosun Kim, Dieter W. Fellner
Issue Date:June 2004
pp. 395-402
(Semi-)immersive displays like back projection walls have become widely used in various visual domains. Despite the superior image quality of ?through-the-windows VR? users are still not satisfied with the interaction capabilities — mostly due to the extra...
Automatic Creation of Object Hierarchies for Radiosity Clustering
Found in: Computer Graphics and Applications, Pacific Conference on
By Gordon Müller, Stephan Schäfer, Dieter W. Fellner
Issue Date:October 1999
pp. 21
Using object clusters for hierarchical radiosity greatly improves the efficiency and thus usability of radiosity computations. By eliminating the quadratic starting phase very large scenes containing about 100k polygons can be handled efficiently. Although...
Linear Algorithms in Sublinear Time a Tutorial on Statistical Estimation
Found in: IEEE Computer Graphics and Applications
By T Ullrich,Dieter W Fellner
Issue Date:March 2011
pp. 58-66
This tutorial presents probability theory techniques for boosting linear algorithms. The approach is based on statistics and uses educated guesses instead of comprehensive calculations. Because estimates can be calculated in sublinear time, many algorithms...
Minimal Rendering Tool: A Research and Teaching Platform for 3D Image Synthesis
Found in: IEEE Computer Graphics and Applications
By Dieter W. Fellner
Issue Date:May 1996
pp. N/A
<p>The Minimal Rendering Tool is a software architecture for a 3D rendering package that has been used as the platform for teaching and for lab assignments in several undergraduate and graduate courses at the Memorial University of Newfoundland, Cana...
A flexible approach to gesture recognition and interaction in X3D
Found in: Proceedings of the 17th International Conference on 3D Web Technology (Web3D '12)
By Dieter W. Fellner, Manuel Olbrich, Tobias Franke
Issue Date:August 2012
pp. 171-174
With the appearance of natural interaction devices such as the Microsoft Kinect or Asus Xtion PRO cameras, a whole new range of interaction modes have been opened up to developers. Tracking frameworks can make use of the additional depth image or skeleton ...
A scalable framework for image-based material representations
Found in: Proceedings of the 17th International Conference on 3D Web Technology (Web3D '12)
By Dieter W. Fellner, Tobias Franke
Issue Date:August 2012
pp. 83-91
Complex material-light interaction is modeled mathematically in its most basic form through the 4D BRDF or the 6D spatially varying BRDF. To alleviate the overhead of calculating correct shading with a complex BRDF consisting of many parameters, many metho...
CommonVolumeShader: simple and portable specification of volumetric light transport in X3D
Found in: Proceedings of the 16th International Conference on 3D Web Technology (Web3D '11)
By Dieter W. Fellner, Johannes Behr, Karsten Schwenk
Issue Date:June 2011
pp. 39-43
Rendering volumetric phenomena with believable appearance can add tremendous realism to virtual scenes. We introduce the CommonVolumeShader node, an extension of the X3D standard which has been specifically designed for physically-based rendering of partic...
A modern declarative surface shader for X3D
Found in: Proceedings of the 15th International Conference on Web 3D Technology (Web3D '10)
By Dieter W. Fellner, Johannes Behr, Karsten Schwenk, Yvonne Jung
Issue Date:July 2010
pp. 7-16
This paper introduces a modern, declarative surface shader for the X3D standard that allows for a compact, expressive, and implementation-independent specification of surface appearance. X3D's Material node is portable, but its feature set has become inade...
Semantic fitting and reconstruction
Found in: Journal on Computing and Cultural Heritage (JOCCH)
By Dieter W. Fellner, Torsten Ullrich, Torsten Ullrich, Volker Settgast, Volker Settgast
Issue Date:October 2008
pp. 1-20
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 return...
Compilation of procedural models
Found in: Proceedings of the 13th international symposium on 3D web technology (Web3D '08)
By Dieter W. Fellner, Torsten Ullrich, Ulrich Krispel
Issue Date:August 2008
pp. 1-1
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 (VR...
Generative 3D models: a key to more information within less bandwidth at higher quality
Found in: Proceedings of the tenth international conference on 3D Web technology (Web3D '05)
By Dieter W. Fellner, Rene Berndt, Sven Havemann
Issue Date:March 2005
pp. 111-121
This paper proposes a novel, yet extremely compact shape representation method. Its main feature is that 3D shapes are represented in terms of functions instead of geometric primitives. Given a set of - typically only a few - specific parameters, the evalu...
VR-LAB---a distributed multi-user environment for educational purposes and presentations
Found in: Proceedings of the fourth symposium on Virtual reality modeling language (VRML '99)
By Armin Hopp, Dieter W. Fellner
Issue Date:February 1999
pp. 121-132
From the Coliseum in Rome to the verdant landscape of the Loire Valley, the world's cultural heritage has withstood the text of time. Today though, the pace of progress --- from urban sprawl to pollution, neglect, conflict, and even tourism --- threatens t...
Robust rendering of general ellipses and elliptical arcs
Found in: ACM Transactions on Graphics (TOG)
By Christoph Helmberg, Dieter W. Fellner
Issue Date:January 1991
pp. 251-276
In view of the fundamental role that functional composition plays in mathematics, it is not surprising that a variety of problems in geometric modeling can be viewed as instances of the following composition problem: given representations for two functions...