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Three-dimensional display rendering acceleration using occlusion camera reference images

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3 Author(s)
Popescu, V. ; Dept. of Comput. Sci., Purdue Univ., West Lafayette, IN ; Rosen, P. ; Aliaga, Daniel G.

Volumetric three-dimensional (3-D) displays allow the user to explore a 3-D scene free of joysticks, keyboards, goggles, or trackers. For non-trivial scenes, computing and transferring a 3-D image to the display takes hundreds of seconds, which is a serious bottleneck for many applications. We propose to represent the 3-D scene with an occlusion camera reference image (OCRI). The OCRI is a compact scene representation that stores only and all scene samples that are visible from a viewing volume centered at a reference viewpoint. The OCRI enables computing and transferring the 3-D image an order of magnitude faster than when the entire scene is processed. The OCRI approach can be readily applied to several volumetric display technologies; we have tested the OCRI approach with good results on a volumetric display that creates a 3-D image by projecting 2-D scene slices onto a rotating screen

Published in:

Display Technology, Journal of  (Volume:2 ,  Issue: 3 )