NDLI: A depth map representation for real-time transmission and view-based rendering of a dynamic 3D scene

Content Provider	IEEE Xplore Digital Library
Author	Bing-Bing Chai Sethuraman, S. Sawhney, H.S.
Copyright Year	2002
Description	Author affiliation: Vision Technol. Bus. Unit, Sarnoff Corp., Princeton, NJ, USA (Bing-Bing Chai; Sethuraman, S.; Sawhney, H.S.)
Abstract	View-based 3D video streaming requires the compression and transmission of depth maps along with the video sequence. The requirements for representing these depth maps include moderately high compression, preservation of depth discontinuities, low complexity decoding, and to be in a form that is suitable for real-time rendering using graphics cards. This motivates a mesh-based representation for the depth map. We adapt a mesh generation algorithm used in real-time height field rendering for depth map representation and produce a regular mesh for each depth map. Then we propose a compression technique that encodes the triangulated depth map as a set of single bit enabled flags that mark the split of triangles, and depth values at the vertices with Huffman code. By coding the vertices in the rendering order, we achieve depth map decoding and striped triangles for OpenGL based rendering in one loop, thus greatly reducing the complexity at the rendering end.
Starting Page	107
Ending Page	114
File Size	593986
Page Count	8
File Format	PDF
ISBN	0769515214
DOI	10.1109/TDPVT.2002.1024050
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-19
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Layout Streaming media Video compression Rendering (computer graphics) Graphics Geometry Cameras Decoding Solid modeling Time factors
Content Type	Text
Resource Type	Article

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