A novel distortion model for depth coding in 3D-HEVC

In 3D-HEVC, the latest 3D video coding project of MPEG, the coding mode of depth maps is determined by view synthesis optimization (VSO) which integrates view synthesis distortion into rate distortion optimization (RDO) to improve the compression efficiency and synthesis quality simultaneously. Howe...

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Vydané v:Proceedings - International Conference on Image Processing s. 3228 - 3232
Hlavní autori: Chenyang Li, Xin Jin, Qionghai Dai
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.10.2014
Predmet:
3D-HEVC
Adaptation models
Complexity theory
Depth distortion estimation
depth map coding
Encoding
Estimation
Interpolation
rate-distortion optimization
Three-dimensional displays
Video coding
ISSN:1522-4880
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Popis
Shrnutí:In 3D-HEVC, the latest 3D video coding project of MPEG, the coding mode of depth maps is determined by view synthesis optimization (VSO) which integrates view synthesis distortion into rate distortion optimization (RDO) to improve the compression efficiency and synthesis quality simultaneously. However, it introduces a big burden in coding complexity of depth maps. In this paper, a novel distortion model for depth coding in 3D-HEVC is proposed which estimates the distortion of synthesized views using an adaptive model for different pixel intervals. It outperforms existing depth distortion estimation algorithms by 16.6% BD-BR saving in max and 10.2% BD-BR saving on average. Compared with VSO, it reduces encoding complexity of depth maps by 46.2% with the highest efficiency-complexity performance among existing depth distortion estimation algorithms.
ISSN:1522-4880
DOI:10.1109/ICIP.2014.7025653