采用相似度分析的MV-HEVC码率控制算法
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摘要
针对当前MV-HEVC尚未给出有效码率控制的问题,提出一种基于相似度分析的MV-HEVC码率控制算法.该算法的核心是首先建立ρ域的码率控制模型,然后采用相似度分析视点间相关性,利用已编码信息以及帧复杂度进行视点间、帧层、基本单元层比特分配与码率控制.实验仿真结果表明,该算法能够保持高效的编码效率,且实际码率与目标码率平均误差仅为0.96%.
Current MV-HEVC reference model in joint video team(JVT) does not provide efficient rate control schemes,this paper proposes rate control algorithm for MV-HEVC based on similarity analysis. The algorithm remodel the quadratic rate-distortion model. The proposed method allocate the bits and control the rate for inter-view,frame layer,and basic unit layer through the analysis of the coded information,the correlation analysis and frame complexity. Simulation results show that the proposed algorithm can effectively control bit rate for MV-HEVC while keeping high coding efficiency,which efficiently controls the bit rate with an average rate control error of 0.96%.
Current MV-HEVC reference model in joint video team(JVT) does not provide efficient rate control schemes,this paper proposes rate control algorithm for MV-HEVC based on similarity analysis. The algorithm remodel the quadratic rate-distortion model. The proposed method allocate the bits and control the rate for inter-view,frame layer,and basic unit layer through the analysis of the coded information,the correlation analysis and frame complexity. Simulation results show that the proposed algorithm can effectively control bit rate for MV-HEVC while keeping high coding efficiency,which efficiently controls the bit rate with an average rate control error of 0.96%.
引文
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[13]HE Z H,Mitra S K. A linear source model and a unified rate control algorithm for DCT video coding[J]. IEEE Transaction on Circuits for Video Technology,2002,12(11):970-982.
[14] LI B. Lambda Domain rate control algorithm for high efficiency video coding[J]. IEEE Transactions on Image Processing,2014,23(9):3841-3854.
[15]YAN T,AN P,SHEN L Q,et al. Bit allocation and rate control algorithm for MVC[J]. The Imaging Science Journal,2011,59(4):202-210.
[2]ZHANG L,TECH G,WEGNER K,et al. MVC test model 5[C]//Joint Collaborative Team on 3D Video Coding Extensions 5th Meeting. Vienna:[s.n.],2013.
[3]CHAKARESKI J,VELISAVLJEVIC V,STANKOVIC V. View-popularity driven joint source and channel coding of view and rate scalabe multi-view video[J]. IEEE Journal of Selected Topics in Signal Processing,2015,9(3):474-486.
[4]RANA P K,TAGHIA J,MA Z Y,et al. Probabilistic multiview depth image enhancement using variational inference[J]. IEEE Journal of Elected Topics in Signal Processing,2015,9(3):435-448.
[5]SMOLIC A,MUELLER K,MERKLE P,et al. 3D video and free viewpoint video-technologies,applications and MPEG standards[C]//Proceedings of the IEEE International Conference on Multimedia and Expo. Toronto:IEEE,2016:2161-2164.
[6]IKAI T,KEI K,SUZUKI T. JCT3V-MV-HEVC and 3D-HEVC conformance draft 4[C]//Joint Collaborative Team on 3D Video Coding Extensions 14th Meeting. San Diego:[s.n.],2016.
[7]WOO W,ORTEGA A. Optimal blockwise dependent quantization for stereo image coding[J]. IEEE Transactions on Circuits and Systems for Video Technology,1999,9(6):861-867.
[8]LIM J E,KIM J,NGAN K,et al. Advanced rate control technologies for 3D-HDTV[J]. IEEE Transactions on Consumer Electronics,2013,49(4):1-6.
[9]PARK S,SIM D. An efficient rate-control algorithm for multi-view video coding[C]//The 13th IEEE International Symposium on consumer Electronics. Kyoto:IEEE,2009:115-118.
[10]VIZZOTTO B B,ZATT B,MUHAMMAD S,et al. A model predictive controller for frame-level rate control in multiview coding[C]//2012 IEEE International Conference on Multimedia and Expo. Melbourne:IEEE,2012:485-490.
[11]SHAO F,JIANG G Y,YU M,et al. Joint bit allocation and rate control for coding multiview video plus depth based 3D video[J].IEEE Transactions on Multimedia,2013,15(8):1843-1854.
[12]HE Z H,KIM Y K,MITRA S K. Low-delay rate control for DCT video coding via p-domain source modeling[J]. IEEE Transaction on Circuits System for Video Technology,2001,11(8):928-940.
[13]HE Z H,Mitra S K. A linear source model and a unified rate control algorithm for DCT video coding[J]. IEEE Transaction on Circuits for Video Technology,2002,12(11):970-982.
[14] LI B. Lambda Domain rate control algorithm for high efficiency video coding[J]. IEEE Transactions on Image Processing,2014,23(9):3841-3854.
[15]YAN T,AN P,SHEN L Q,et al. Bit allocation and rate control algorithm for MVC[J]. The Imaging Science Journal,2011,59(4):202-210.