An efficient temporal error concealment algorithm based on temporal and spatial correlation of motion

被引：0
作者：
Huang Z. [1 ,2 ]
Yi B. [1 ]
Yu Z. [1 ]
机构：
[1] School of Electronic Information, Wuhan University
[2] Wuhan Research Institute of Post and Telecommunication
来源：
Gaojishu Tongxin/Chinese High Technology Letters | 2010年 / 20卷 / 06期
关键词：
Boundary matching; Error concealment; H.264; Motion vector(MV); Video coding; Video transmission;
D O I：
10.3772/j.issn.1002-0470.2010.06.003
中图分类号：
学科分类号：
摘要：
To overcome the inaccurate estimation of motion vectors in temporal error concealment in video communications, a motion vector recovery method based on the characteristics of similar triangle is given. Furthermore, a novel temporal error concealment algorithm is proposed, which efficiently exploits the temporal and spatial correlation of motion. For a lost macro block, the temporal related motion vector and the spatial related motion vector are first estimated by the similar triangle method and the Lagrange interpolation method respectively, then the temporal and spatial correlation of motion is calculated, finally, the recovery motion vector is obtained by using a weighted average of the temporal and spatial related motion vectors according to the magnitude of correlation. The simulation results show that compared with the traditional algorithms, the proposed algorithm can recover images with high quality in different rates of lost block or different video sequences.
引用
收藏
页码：565 / 570
页数：5
相关论文
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