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Radiosity for dynamic scenes in flatland with the visibility complex

Rachel ORTI, Stephane RIVIERE, Fredo DURAND, Claude PUECH
1996 Computer graphics forum (Print)  
To correctly understand and solve this problem, we start with a method in 2D for polygonal scenes using the visibility complex.  ...  The radiosity method is particularly suitable for global illumination calculations in static environments.  ...  Acknowledgements The authors wish to thank George Drettakis for his constant support and his helpful insights and suggestions.  ... 
doi:10.1111/1467-8659.1530237 fatcat:xuyrmuxfljahvm6x4rpstdqogm

Radiosity in Flatland

Paul S. Heckhert
1992 Computer graphics forum (Print)  
The radiosity method for the simulation of interre ection of light between di use surfaces is such a common image synthesis technique that its derivation is worthy of study.  ...  It is shown that the radiosity method is a simple nite element method for the solution of the integral equation governing global illumination.  ...  This research has suggested a number of ideas for future research: one would like to nd the combination of approximations and algorithms that gives the most accurate nal result in the least time.  ... 
doi:10.1111/1467-8659.1130181 fatcat:g6lwh6pgirgzjerml2v2husbou

Wavelets in computer graphics

P. Schroder
1996 Proceedings of the IEEE  
Handling geometrically complex scenes and physically faithful descriptions of their appearance and behavior, clashes with the requirement of multiple frame per second update rates.  ...  We give an overview of some of the areas in which wavelets have already had an impact on the state of the art.  ...  The main difficulty with clustering in the context of radiosity is due to visibility. For example, the light emitted from a cluster of elements is not equal to the sum of the individual emissions.  ... 
doi:10.1109/5.488703 fatcat:fbfitsuvuvh2nc4blq6gmvxlxq

Global illumination of glossy environments using wavelets and importance

Per H. Christensen, Eric J. Stollnitz, David H. Salesin, Tony D. DeRose
1996 ACM Transactions on Graphics  
Importance is used to focus the computation on the interactions having the greatast impact on the visible solution.  ...  We discuss a number of choices that must be made when constructing a finite element algorithm for glossy global illumination.  ...  ACKNOWLEDGMENTS We would like to thank Dani Lischinski and Steven Gortler for their careful reviews of an early version of this article.  ... 
doi:10.1145/226150.226153 fatcat:7sdsecisc5dzvkvomwvzb2jhmu

Shader Lamps: Animating Real Objects With Image-Based Illumination [chapter]

Ramesh Raskar, Greg Welch, Kok-Lim Low, Deepak Bandyopadhyay
2001 Eurographics  
We describe a new paradigm for three-dimensional computer graphics, using projectors to graphically animate physical objects in the real world.  ...  We address the central issue of complete and continuous illumination of non-trivial physical objects using multiple projectors and present a set of new techniques that makes the process of illumination  ...  For stage shows, we can change not just the backdrops, but also simulate seasons or aging of the objects in the scene.  ... 
doi:10.1007/978-3-7091-6242-2_9 fatcat:j7mxy3jzenczzkzr3ngz5q7gqa

Shader Lamps: Animating Real Objects With Image-Based Illumination [article]

Ramesh Raskar, Greg Welch, Kok-Lim Low, Deepak Bandyopadhyay
2001 Symposium on Rendering  
We describe a new paradigm for three-dimensional computer graphics, using projectors to graphically animate physical objects in the real world.  ...  We address the central issue of complete and continuous illumination of non-trivial physical objects using multiple projectors and present a set of new techniques that makes the process of illumination  ...  We also thank members of the "Office of the Future" group at UNC Chapel Hill and specifically Wei-Chao Chen and Sang-Uok Kum for their help.  ... 
doi:10.2312/egwr/egwr01/089-101 fatcat:yfbssgjqefao7noqnr2nvusyq4

Modern approaches to augmented reality

Oliver Bimber, Ramesh Raskar
2007 ACM SIGGRAPH 2007 courses on - SIGGRAPH '07  
Furthermore, it presents techniques for projector based augmentation of geometrically complex and textured display surfaces, and (along with optical combination) methods for achieving consistent illumination  ...  Specifically, it will describe techniques for optical combination using single/multiple spatially aligned mirror-beam splitters, image sources, transparent screens and optical holograms.  ...  Kiyokawa The HoloGraphics project is supported by the Deutsche Forschungsgemeinschaft (DFG BI 835/1-1).  ... 
doi:10.1145/1281500.1281628 dblp:conf/siggraph/BimberR07 fatcat:f2qbm6fwv5a4vlrefdrt5gmgxm

Modern approaches to augmented reality

Oliver Bimber, Ramesh Raskar
2006 ACM SIGGRAPH 2006 Courses on - SIGGRAPH '06  
Furthermore, it presents techniques for projector based augmentation of geometrically complex and textured display surfaces, and (along with optical combination) methods for achieving consistent illumination  ...  Specifically, it will describe techniques for optical combination using single/multiple spatially aligned mirror-beam splitters, image sources, transparent screens and optical holograms.  ...  Kiyokawa The HoloGraphics project is supported by the Deutsche Forschungsgemeinschaft (DFG BI 835/1-1).  ... 
doi:10.1145/1185657.1185796 dblp:conf/siggraph/BimberR06 fatcat:xezuciurc5bb7lagctlek7ohle

Modern approaches to augmented reality

Oliver Bimber
2006 ACM SIGGRAPH 2006 Courses on - SIGGRAPH '06  
Furthermore, it presents techniques for projector based augmentation of geometrically complex and textured display surfaces, and (along with optical combination) methods for achieving consistent illumination  ...  Specifically, it will describe techniques for optical combination using single/multiple spatially aligned mirror-beam splitters, image sources, transparent screens and optical holograms.  ...  Kiyokawa The HoloGraphics project is supported by the Deutsche Forschungsgemeinschaft (DFG BI 835/1-1).  ... 
doi:10.1145/1185657.1185797 dblp:conf/siggraph/Bimber06 fatcat:j4wsg26gbneu3d32hclrpvvdrm

Modern approaches to augmented reality

Oliver Bimber, Ramesh Raskar
2005 ACM SIGGRAPH 2005 Courses on - SIGGRAPH '05  
Permission to copy in whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that  ...  ACM SIGGRAPH 2006 This work may not be copied or reproduced in whole or in part for any commercial purpose.  ...  A single accumulation of simple homogenous transformation matrices (as described for planar optics) cannot express such a complex deformation for the entire scene.  ... 
doi:10.1145/1198555.1198711 dblp:conf/siggraph/BimberR05 fatcat:czopmk5sxndxpd2xdjurkwjw24

Alternative Augmented Reality Approaches: Concepts, Techniques, and Applications [article]

Oliver Bimber, Ramesh Raskar
2003 Eurographics State of the Art Reports  
In this tutorial we discuss application specific alternative augmented reality (AR) approaches –such as Virtual Showcases and Shader Lamps– that focus on overcoming some of the limitations linked to conventional  ...  Methods that create graphical augmentations with respect to the applied optical elements and display surfaces, and techniques for creating a high level of consistency between real and virtual environments  ...  Acknowledgements We would like to acknowledge and thank all contributors of this tutorial: M. Agrawala, R. T. Azuma, E. Foxlin, G. Goebbels, H. Hua, M. Inami, N. Kawakami, Y. Kitamura, K. Kiyokawa  ... 
doi:10.2312/egt.20031097 fatcat:iu3lxc4umbax7p7xle3rpak6rq

Rendering (Dagstuhl Seminar 9624)

Patrick M. Hanrahan, Heinrich Müller, Claude Puech
1996
Hierarchical Radiosity -An Analysis of Computational Complexity for a Simple Scene Robert Garmann Universität Dortmund The hierarchical radiosity algorithm is an efficient algorithm for the simulation  ...  Geometric Models of 3D Objects Using Range Images Robert Garmann Hierarchical Radiosity -An Analysis of Computational Complexity for a Simple Scene Philip Dutré A Mathematical Framework for Global Illumination  ... 
doi:10.4230/dagsemrep.148 fatcat:qld6okihsvgo5ccnq4pojbujua

Simulating humans: computer graphics animation and control

1994 ChoiceReviews  
The very ubiquitousness of other people in our lives poses a tantalizing challenge to the computational modeler: people are at once the most common object of interest and yet the most structurally complex  ...  Our motor systems manage to learn how to make us move without leaving us the burden or pleasure of knowing how we did it.  ...  The particular physical simulation approach is to use a simple nitedi erence approximation to the equations for elastic solids.  ... 
doi:10.5860/choice.31-2728 fatcat:r2oehymzrvb27mchwharo6fesm

New contributions to spatial partitioning and parallel global illumination algorithms

Robert Garmann, Technische Universität Dortmund, Technische Universität Dortmund
2004
On the other hand a dynamic orthogonal recursive bisection tool for the dynamic partitioning of spatially mapped tasks is developped and analyzed theoretically and experimentally.  ...  As a proof of practicability of our tool we apply the tool to the HRA and observe a well scalable behaviour and useful speedup values.  ...  In practice, for a relatively simple task as the simple hall scene, usually we would use only few processors.  ... 
doi:10.17877/de290r-13450 fatcat:v647pq7fszd4dp6ipfewqwxx4e

Shading and inverse shading from direct illumination

Pierre Poulin
1993
It allows a user to obtain a desired lighting effect by interacting directly with the scene model.  ...  To compute the light reflected by a surface element in a given direction, one needs to determine the unoccluded regions (shadowing) of each light source and then to compute the light reflection (shading  ...  After, the visible area of the light grows quadratically. A scene made of m edges ca produce 0(m 3 ) EEE events [heck9la].  ... 
doi:10.14288/1.0051267 fatcat:7yx6akbjkffznerri6x5jgul6m
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