Hasso-Plattner-Institut
Prof. Dr. Jürgen Döllner
  
 

Publications

Efficient Representation of Layered Depth Images for Real-time Volumetric Tests

Trapp, Matthias; Döllner, Jürgen in EG UK Theory and Practice of Computer Graphics (2008) Conference Lim, Ik Soo; Tang, Wen ( Hrsg. ), Seite 9--16 . UK Chapter of the Eurographics Association , The Eurographics Association , 2008 .

Representing Layered Depth Images (LDI) as 3D texture can be used to approximate complex, arbitrarily shaped volumes on graphics hardware. Based on this concept, a number of real-time applications such as collision detection or 3D clipping against multiple volumes can be implemented efficiently using programmable hardware. One major drawback of this image-based representation is the high video memory consumption. To compensate that disadvantage, this paper presents a concept and associated algorithms that enable a lossless, efficient LDI representation which is especially designed for the usage within shader programs. The concept comprises the application of a viewpoint selection, a cropping, and a compression algorithm. We evaluated our algorithm with different test cases and show possible use cases.
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132-Trapp-Efficient-LDI-Representation.pdf
Weitere Informationen
Herausgeber Lim, Ik Soo; Tang, Wen
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