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A Spatial Error Concealment Technique Using Edge-Oriented Interpolation  

Yoo Hyun sun (한양대학교 전자통신컴퓨터공학과 영상통신 및 신호처리 연구실)
Kim Won ki (한양대학교 전자통신컴퓨터공학과 영상통신 및 신호처리 연구실)
Jeong Je chang (한양대학교 전자통신컴퓨터공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.3C, 2005 , pp. 133-140 More about this Journal
Abstract
This paper introduces a spatial error concealment technique using directional interpolation in block-based compression. The first step involves finding the spatial direction vectors represented an edge-direction in the lost block using spatial boundary matching algorithm. Then, the error blocks are recovered by directional interpolation through these vectors and concealed by using the recovered blocks which have lower directional boundary matching error out of them relatively. This proposed method is able to deal with errors on macroblock or slice level adaptively. And it has lower complexity and maintains better performance compared to the conventional methods.
Keywords
Spatial Error Concealment; Boundary Matching Algorithm; Directional Interpolation; Edge-Oriented; Postprocessing;
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