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Proceedings Paper

Smoothed reference inter-layer texture prediction for bit depth scalable video coding
Author(s): Zhan Ma; Jiancong Luo; Peng Yin; Cristina Gomila; Yao Wang
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Paper Abstract

We present a smoothed reference inter-layer texture prediction mode for bit depth scalability based on the Scalable Video Coding extension of the H.264/MPEG-4 AVC standard. In our approach, the base layer encodes an 8-bit signal that can be decoded by any existing H.264/MPEG-4 AVC decoder and the enhancement layer encodes a higher bit depth signal (e.g. 10/12-bit) which requires a bit depth scalable decoder. The approach presented uses base layer motion vectors to conduct motion compensation upon enhancement layer reference frames. Then, the motion compensated block is tone mapped and summed with the co-located base layer residue block prior to being inverse tone mapped to obtain a smoothed reference predictor. In addition to the original inter-/intra-layer prediction modes, the smoothed reference prediction mode enables inter-layer texture prediction for blocks with inter-coded co-located block. The proposed method is designed to improve the coding efficiency for sequences with non-linear tone mapping, in which case we have gains up to 0.4dB over the CGS-based BDS framework.

Paper Details

Date Published: 18 January 2010
PDF: 10 pages
Proc. SPIE 7543, Visual Information Processing and Communication, 75430P (18 January 2010); doi: 10.1117/12.840280
Show Author Affiliations
Zhan Ma, Polytechnic Institute of NYU (United States)
Jiancong Luo, Thomson Corporate Research (United States)
Peng Yin, Thomson Corporate Research (United States)
Cristina Gomila, Thomson Corporate Research (United States)
Yao Wang, Polytechnic Institute of NYU (United States)

Published in SPIE Proceedings Vol. 7543:
Visual Information Processing and Communication
Amir Said; Onur G. Guleryuz, Editor(s)

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