Efficient Synthesis-Based Depth Map Coding in AVC-Compatible 3D Video Coding
Efficient Synthesis-Based Depth Map Coding in AVC-Compatible 3D Video Coding
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DOI：
10.1109/tcsvt.2015.2441491
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发表时间：
2016-06
影响因子：
8.4
通讯作者：
Jin Young Lee;H. W. Park
中科院分区：
文献类型：
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作者：
Jin Young Lee;H. W. Park
引入了一种多视点视频加深度格式，支持三维深度感知和任意视点生成。为了实现兼容avc的3D视频编码（3D- avc）的高编码性能，本文提出了一种高效的深度图编码方法，该方法包括基于合成的深度残差编码和滤波。基于合成的深度残差编码方法通过预测相应纹理的空间复杂度的合成失真，以非规范的方式对残差进行自适应编码。为了补偿编码方法可能产生的误差，对重构的深度图进行了基于综合的深度滤波。实验结果表明，该方法在满足当前3D-AVC兼容的前提下，对解码后的psnr和合成后的psnr分别比原方法降低了4.4%和4.8%。
A multiview video plus depth format was introduced to support 3D depth perception and arbitrary view generation. To achieve high coding performance in AVC-compatible 3D video coding (3D-AVC), we herein propose an efficient depth map coding method that includes synthesis-based depth residual coding and filtering. The synthesis-based depth residual coding method adaptively encodes a residual by predicting synthesis distortion from spatial complexity of the corresponding texture, in a nonnormative way. In order to compensate for possible error from the proposed coding method, synthesis-based depth filtering is additionally conducted on the reconstructed depth map. Experimental results demonstrate that the proposed method reduces the bit rates by 4.4% and 4.8%, compared with the original method for the decoded and synthesized PSNRs, respectively, while satisfying the compatibility with the current 3D-AVC.