High efficiency video coding- (HEVC-) based 3D video coding (3D-HEVC) developed by joint collaborative team on 3D video coding (JCT-3V) for multiview video and depth map is an extension of HEVC standard. In the test model of 3D-HEVC, variable coding unit (CU) size decision and disparity estimation (DE) are introduced to achieve the highest coding efficiency with the cost of very high computational complexity. In this paper, a fast mode decision algorithm based on variable size CU and DE is proposed to reduce 3D-HEVC computational complexity. The basic idea of the method is to utilize the correlations between depth map and motion activity in prediction mode where variable size CU and DE are needed, and only in these regions variable size CU and DE are enabled. Experimental results show that the proposed algorithm can save about 43% average computational complexity of 3D-HEVC while maintaining almost the same rate-distortion (RD) performance.

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variable size cu correlations between depth map and motion activity ratedistortion rd performance prediction mode average computational complexity 3dhevc variable coding unit fast mode decision algorithm hevc de efficiency video coding hevc based 3d video coding disparity estimation

Qiuwen Zhang,Nana Li,Yong Gan,.Low Complexity Mode Decision for 3D-HEVC. 2014 (),.

Qiuwen Zhang,Nana Li,Yong Gan,"Low Complexity Mode Decision for 3D-HEVC" 2014

Qiuwen Zhang,Nana Li,Yong Gan,"Low Complexity Mode Decision for 3D-HEVC"