A Fast and Efficient 3D-HEVC Method for Complexity Reduction Based on the Correlations of Inter-View, Spatio-Temporal, and Texture-Depth
A Fast and Efficient 3D-HEVC Method for Complexity Reduction Based on the Correlations of Inter-View, Spatio-Temporal, and Texture-Depth
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一种基于视图间、时空和纹理深度相关性的快速高效的 3D-HEVC 复杂度降低方法
DOI：
10.1109/access.2020.3009424
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发表时间：
2020
期刊：
影响因子：
3.9
通讯作者：
Su Rijian
中科院分区：
文献类型：
--
作者：
Zhang Qiuwen;Wang Yihan;Wei Tao;Huang Lixun;Su Rijian
3D高效视频编码（3D-HEVC）是最新的高效视频编码（HEVC）标准开发，以提高多视图视频加深度（MVD）格式的压缩性能。它采用了几个额外的编码工具，以更好地表示相关的纹理和深度数据。这些工具实现了高压缩效率，但需要高计算复杂度。在本文中，我们介绍了一种用于MVD复杂度降低的快速3D-HEVC方法。通过仿真分析，研究了视点间、时空和纹理深度的编码信息相关性。该快速算法根据视点间、时空和纹理-深度的相关性，在编码的早期跳过部分纹理和深度图的树块，包括快速深度层、早期SKIP/Merge模式、自适应提前终止等。实验结果表明，该算法在率失真性能损失很小的情况下，可以节省3D-HEVC编码时间的70.2%。
3D High Efficiency Video Coding (3D-HEVC) is the latest High Efficiency Video Coding (HEVC) standard development to improve the compression performance of multi-view video plus depth (MVD) format. It adopts several additional coding tools for better representation of the dependent texture and depth data. These tools achieve high compression efficiency, but require high computational complexity. In this paper, we introduce a fast 3D-HEVC method for the complexity reduction of MVD. A simulation analysis is performed to study the coding information correlations of inter-view, spatio-temporal and texture-depth. The proposed fast algorithm decides to skip some treeblocks of texture and depth map at the early stage without a normal coding process, which includes fast depth level, early SKIP/Merge mode, adaptive early termination, based on the correlations of inter-view, spatio-temporal, and texture-depth. Experimental results show that the proposed fast scheme can save 70.2% encoding runtime of 3D-HEVC, with negligible loss of rate-distortion (RD) performance.