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Sequential Motion Vector Error Concealment Algorithm for H.264 Video Coding  

Jeong Jong-woo (LG 전자)
Hong Min-Cheol (숭실대학교 정보통신전자 공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.10C, 2005 , pp. 1036-1043 More about this Journal
Abstract
In this paper, we propose a sequential motion vector recovery algorithm for H.264 video coding standard. Motion vectors of H.264 video coding standard cover relatively smaller areas than other standard, since motion estimation of H.264 takes place in the fashion of variable block size. Therefore, the correlation of motion vectors between neighboring blocks increases as the block size of motion estimation is lowered. Under the framework of sequential recovery, we introduce a motion vector recovery using $\alpha$-trimed mean filter. Experimental results show that proposed algorithm is useful in real time video delivery .with nearly comparable or better visual quality than previous approaches such as macro block boundary matching and Lagrage interpolation.
Keywords
sequential motion vector recovery; video coding; H.264; motion estimation;
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