title: Low complexity mode decision for 3D-HEVC.
abstract: 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.
authors.affiliation: College of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China.
authors.forename: Qiuwen
authors.identifier: 0000-0002-8533-7088
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: College of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China.
authors.forename: Nana
authors.initials: N
authors.lastname: Li
authors.affiliation: College of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Gan
mesh_terms: D000465:Algorithms; D044962:Data Compression / Q000379:methods*; D007091:Image Processing, Computer-Assisted; D008962:Models, Theoretical; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted; D014741:Video Recording / Q000379:methods*