LAYERED MOTION ESTIMATION AND CODING FOR FULLY SCALABLE 3D WAVELET VIDEO CODING (TP-P7)

Author(s) : Ruiqin Xiong (Institute of Computing Technology, Chinese Academy of Sciences, China) Jizheng Xu (Microsoft Research Asia, China) Feng Wu (Microsoft Research Asia, China) Shipeng Li (Microsoft Research Asia, China) Ya-Qin Zhang (Microsoft, USA)

Abstract : This paper proposes a scalable motion coding framework for 3D wavelet coding with the structure of multi-layers. Each layer of motion is a point optimized at certain a range of bit-rate. The encoder uses motion of all layers to perform analysis, while the decoder can receive only part of motion for synthesis. We ob-serve that the distortion introduced by motion mismatch is highly independent with the rate for texture in a wide range. Therefore, an optimal motion layer decision scheme is used to find the best trade-off between motion and texture. The pro-posed framework also supports the spatial and temporal scalabil-ities of motion. Experimental results show significant improve-ment at low bit-rates and nearly no loss at high bit-rates with layered motion coding and optimal motion decision. The per-formance is approaching to the convex hull of those with multi-ple sets of non-scalable motion.

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