On the Rate Control in Video Coding:Algorithms and Ezperiments
This paper presents novel algorithms for optimal bit allocation and uniform rate control in video coding. By introducing an important factor of the frame picture in the Group of Pictures (GOP), the bit allocation is formulated as a convex programming problem, and is efficiently solved by designed algorithm which combines Lagrangian method and Boundary Linear Search method (L-BLS). Then, an efficient rate control scheme is proposed and is also simulated and verified in the MPEG2 video coding. Experimental results show that the proposed scheme can achieve a better picture quality, namely, PSTN reached average l.ldb improvement than the Test Models (TM5) under the same target bits rate and mismatch error.
bit allocation rate control source model L-BLS algorithm video coding
Shurong Chen Kaiyu Xu
Information Engineering College Shanghai Maritime University Shanghai, 200135, China
国际会议
2009 WASE International Conference on Information Engineering(2009年国际信息工程会议)(ICIE 2009)
太原
英文
149-152
2009-07-10（万方平台首次上网日期，不代表论文的发表时间）