Low-Complexity Depth Coding by Depth Sensitivity Aware Rate-Distortion Optimization

被引:9
作者
Shao, Feng [1 ]
Lin, Weisi [2 ]
Jiang, Gangyi [1 ]
Yu, Mei [1 ]
机构
[1] Ningbo Univ, Fac Informat Sci & Engn, Ningbo 315211, Peoples R China
[2] Nanyang Technol Univ, Ctr Multimedia & Network Technol, Sch Comp Engn, Singapore 639798, Singapore
关键词
Low-complexity coding; depth sensitivity fidelity; rate-distortion optimization; view synthesis distortion; JOINT BIT ALLOCATION; VIEW SYNTHESIS; VIDEO; COMPRESSION; MODEL; MAPS;
D O I
10.1109/TBC.2015.2496818
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, a low-complexity coding approach is explored for depth video under the framework of high efficiency video coding based 3-D video coding standard. Unlike the existing low-complexity coding approaches that optimize motion search and mode decision, the major technical innovation of this paper is to incorporate depth sensitivity fidelity (DSF) into the rate-distortion optimization (RDO) process. Specifically, a quantitative maximum tolerable depth distortion is derived to measure the DSF, and jointly estimate the view synthesis distortion to account for the DSF. Then, a DSF-aware RDO scheme is proposed by developing new quantization parameter and Lagrangian multiplier determination strategies. Extensive experimental results demonstrate that the proposed method can reduce the computational complexity of encoding without significant view synthesis performance loss.
引用
收藏
页码:94 / 102
页数:9
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