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低复杂度的分布式视频编码系统边信息生成算法

发表时间:2014-10-31  浏览量:1409  下载量:575
全部作者: 岳虹,刘晓娟,卿粼波,何小海
作者单位: 四川大学电子信息学院
摘 要: 为降低边信息算法的计算复杂度,提出基于结构张量的边信息生成算法。该算法在解码端通过计算视频的结构张量来获得视频中各区域的运动量,根据运动量的大小将其划分为背景区域、缓慢运动区域和剧烈运动区域,并对不同区域采用不同的运动搜索范围来获取边信息。仿真结果表明,算法可以在保证边信息质量基本不变的情况下,减少55%~97%的计算量。
关 键 词: 通信技术;分布式视频编码;边信息;结构张量;双向运动补偿内插
Title: Low-complexity side information generation algorithm in distributed video coding system
Author: YUE Hong, LIU Xiaojuan, QING Linbo, HE Xiaohai
Organization: School of Electronic Information Engineering, Sichuan University
Abstract: In order to reduce the complexity of the side information generation, this paper proposes a structure tensor-based side information generation algorithm. The proposed algorithm can obtain the levels of movement in disparity block by computing the structure tensor, then the video frames are divided into background, slow movement and severe movement regions according to the levels of movement. Finally, different search ranges are set up for the three different regions to generate side information, respectively. Simulation results show that the complexity can be reduced about 55%~97% by using the proposed algorithm, while the quality decreasing of side information is neglectable.
Key words: communication technology; distributed video coding; side information; structure tensor; motion compensated temporal interpolation
发表期数: 2014年10月第20期
引用格式: 岳虹,刘晓娟,卿粼波,等. 低复杂度的分布式视频编码系统边信息生成算法[J]. 中国科技论文在线精品论文,2014,7(20):2036-2042.
 
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