A Fast Mode Decision Algorithm Based on Temporal-Spatial Correlation for P-Frame Video Coding
In this paper,a fast mode decision algorithm based on temporal-spatial correlation for P-frame coding are proposed to accelerate the video encoding procedure.The algorithm includes three strategies,mode prejudgment based on temporal-spatial neighborhood macroblocks (MBs),mode combination based on motion vector (MV) coherence,and temporal-spatial correlation analysis for intra mode.Firstly,the left and up MBs in current frame and the current-position,right and down MBs in previous frame are used to predict the mode of current MB.Then,sub-block inter modes are limited by the 8x8 mode combination rules.Furthermore,intra mode in P-frame coding is limited by the temporal-spatial correlation analysis.Finally,comparative experimental results show that the proposed scheme can achieve a good tradeoff between coding speed and performance.
fast mode decision temporal-spatial correlation video coding
Zhigang Yang Lingyong Xu Tao Chen
College of Information and Communication Engineering,Harbin Engineering University Harbin,150001,China
国际会议
重庆
英文
1009-1013
2016-03-20（万方平台首次上网日期，不代表论文的发表时间）