Depth Map Coding Based on Synthesized View Distortion Function
Depth Map Coding Based on Synthesized View Distortion Function
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DOI：
10.1109/jstsp.2011.2164893
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发表时间：
2011-08
影响因子：
7.5
通讯作者：
Byung Tae Oh;Jaejoon Lee;Du-sik Park
中科院分区：
文献类型：
--
作者：
Byung Tae Oh;Jaejoon Lee;Du-sik Park
提出了一种基于新定义的渲染视图失真函数的高效深度图编码方法。与仅通过调查深度图中的编码误差来测量失真的传统深度图编码相比，所提出的方案通过涉及共位颜色信息来关注虚拟合成的视图质量。详细地，所提出的失真函数估计渲染视图质量，其中提供基于区域的方案以准确地模拟扭曲/视图渲染过程。此外，所提出的失真度量的编码性能甚至通过涉及由共置颜色编码信息导出的附加SKIP模式而得到改善。仿真结果表明，该方案可以使深度数据节省约30%的比特率，使整体多视图数据节省约10%的比特率。
This paper presents an efficient depth map coding method based on a newly defined rendering view distortion function. As compared to the conventional depth map coding in which distortion is measured by only investigating the coding error in depth map, the proposed scheme focuses on virtually synthesized view quality by involving co-located color information. In detail, the proposed distortion function estimates rendered view quality, where area-based scheme is provided in order to mimic the warping/view-rendering process accurately. Moreover, the coding performance of the proposed distortion metric is even improved by involving the additional SKIP mode derived by co-located color coding information. The simulation results show the proposed scheme could achieve approximately 30% bit-rate saving for depth data, and about 10% bit-rate saving for overall multi-view data.