New Network Bandwidth-limited Multi-view Video plus Depth Coding Method for 3D Video

New Network Bandwidth-limited Multi-view Video plus Depth Coding Method for 3D Video
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新型网络带宽限制多视点视频加深度编码3D视频方法

DOI:
10.4304/jmm.8.1.8-15
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发表时间:
2013-01
期刊:
Journal of Multimedia
影响因子:
--
通讯作者:
蒋刚毅
蒋刚毅
中科院分区:
其他
文献类型:
--
作者:
朱亚培;郁梅;张冠军;彭宗举;邵枫;蒋刚毅

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本文研究了基于多视点视频压缩和深度图压缩的未来三维视频传输系统。为了在传输码率不变的情况下获得最佳的合成视图质量,首先分析了组合编码与视图合成的总体行为,将不同编码质量的颜色和深度数据进行中间视图合成。然后,对颜色和深度数据的单独编码结果进行评估,以研究在特定压缩下合成的视图质量如何。最后,利用彩色视频量化参数与相应深度图的最优组合,提出了一种多视点视频加深度(MVD)联合编码方法。仿真结果表明,与JMVC相比,该方法的码率降低了12.72%~24.02%,可用于指导3D视频压缩的序列级纹理/深度编码。该方法在优化比特率和视觉质量之间的权衡方面具有较好的性能。
Prospective 3D video transmission systems that would use compression of both multiview video and depth maps was dealt with in this paper. To get the optimal synthesized view quality with the transmission bit rate being constant, it firstly analyzed the overall behavior of combined coding and view synthesis, color and depth data with different coding qualities were combined for intermediate view synthesis. Then, individual coding results for color and depth data were evaluated in order to investigate, how well the synthesized view quality was at certain compression. Finally, a new joint coding method for multi-view video plus depth (MVD) was proposed by utilizing the optimal combinations of the quantization parameters of color videos and the corresponding depth maps. Simulation results demonstrated that the proposed method decreased the bit-rate by 12.72%~24.02% in comparison with JMVC and can be used to guide sequence-level texture/depth coding for 3D video compression. The proposed method has better performance in optimizing the tradeoff between bit-rate and visual quality.
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