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Selective Disparity Estimation and Variable Size Motion Estimation Based on Motion Homogeneity for Multi-View Coding

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5 Author(s)
Liquan Shen ; Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai, China ; Zhi Liu ; Suxing Liu ; Zhaoyang Zhang
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Multi-view video coding (MVC) is an ongoing standard in which variable size disparity estimation (DE) and motion estimation (ME) are both employed to select the best coding mode for each macroblock (MB). This technique achieves the highest possible coding efficiency, but it results in extremely large encoding time which obstructs it from practical use. In this paper, a fast DE and ME algorithm based on motion homogeneity is proposed to reduce MVC computational complexity. The basic idea of the method is to utilize the spatial property of motion field in prediction where DE and variable size ME are needed, and only in these regions DE and variable size ME are enabled. The motion field is generated by the corresponding motion vectors (MVs) in spatial window. Simulation results show that the proposed algorithm can save 63% average computational complexity, with negligible loss of coding efficiency.

Published in:

Broadcasting, IEEE Transactions on  (Volume:55 ,  Issue: 4 )

Date of Publication:

Dec. 2009

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