Fast 3D-HEVC inter mode decision algorithm based on the texture correlation of viewpoints

To reduce the computational complexity of 3D-HEVC, a fast inter mode decision algorithm based on texture correlation of adjacent viewpoints is proposed (FMD_inter). By studying the statistical probability of inter prediction mode distributions in 3D-HEVC coding scheme, the mode of dependent view is highly correlated with the base one, which enables the early mode decision. Moreover, by analyzing the relationship between video texture and the inter prediction mode, selectively skip checking symmetric motion partition (SMP) mode and asymmetric motion partition (AMP) mode according to the texture features of coding unit is reasonable. The proposed algorithm is able to achieve a reduction of computational complexity by 18.71% on average, while maintaining the coding efficiency. The subjective quality of the synthesized views also shows the effectiveness of the algorithm.

[1]  Gary J. Sullivan,et al.  Overview of the Stereo and Multiview Video Coding Extensions of the H.264/MPEG-4 AVC Standard , 2011, Proceedings of the IEEE.

[2]  Chun-Su Park,et al.  Edge-Based Intramode Selection for Depth-Map Coding in 3D-HEVC , 2015, IEEE Transactions on Image Processing.

[3]  Qionghai Dai,et al.  A fast coding algorithm based on inter-view correlations for 3D-HEVC , 2014, 2014 IEEE Visual Communications and Image Processing Conference.

[4]  Kebin Jia,et al.  Early merge mode decision for texture coding in 3D-HEVC , 2015, J. Vis. Commun. Image Represent..

[5]  Chih-Hsien Hsia,et al.  A 3D Endoscopic Imaging System With Content-Adaptive Filtering and Hierarchical Similarity Analysis , 2016, IEEE Sensors Journal.

[6]  G. Bjontegaard,et al.  Calculation of Average PSNR Differences between RD-curves , 2001 .

[7]  Wen Gao,et al.  Inter-View Dependency-Based Rate Control for 3D-HEVC , 2017, IEEE Transactions on Circuits and Systems for Video Technology.

[8]  Yu-Wen Huang,et al.  Advanced texture and depth coding in 3D-HEVC , 2018, J. Vis. Commun. Image Represent..

[9]  Wen-Nung Lie,et al.  Fast encoding of 3D color-plus-depth video based on 3D-HEVC , 2015, 2015 IEEE International Conference on Image Processing (ICIP).

[10]  Mohamed-Chaker Larabi,et al.  Low complexity intra prediction mode decision for 3D-HEVC depth coding , 2018, Signal Process. Image Commun..

[11]  Kai-Kuang Ma,et al.  Sum-of-gradient based fast intra coding in 3D-HEVC for depth map sequence (SOG-FDIC) , 2017, J. Vis. Commun. Image Represent..

[12]  Ying Chen,et al.  Overview of the MVC + D 3D video coding standard , 2014, J. Vis. Commun. Image Represent..

[13]  Yui-Lam Chan,et al.  Probability-Based Depth Intra-Mode Skipping Strategy and Novel VSO Metric for DMM Decision in 3D-HEVC , 2018, IEEE Transactions on Circuits and Systems for Video Technology.

[14]  Gary J. Sullivan,et al.  Introduction to the Special Issue on HEVC Extensions and Efficient HEVC Implementations , 2016, IEEE Trans. Circuits Syst. Video Technol..

[15]  Guorui Feng,et al.  Efficient Intra Mode Selection for Depth-Map Coding Utilizing Spatiotemporal, Inter-Component and Inter-View Correlations in 3D-HEVC , 2018, IEEE Transactions on Image Processing.

[16]  Christoph Fehn,et al.  Depth-image-based rendering (DIBR), compression, and transmission for a new approach on 3D-TV , 2004, IS&T/SPIE Electronic Imaging.

[17]  Panos Nasiopoulos,et al.  Online-Learning-Based Complexity Reduction Scheme for 3D-HEVC , 2016, IEEE Transactions on Circuits and Systems for Video Technology.