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An Efficient Spatial Error Concealment Technique Using Adaptive Edge-Oriented Interpolation  

Park, Sun-Kyu (LG전자 Mobile Communication사업본부 단말연구소)
Kim, Won-Ki (한양대학교 전자통신컴퓨터공학과 영상통신 및 신호처리 연구실)
Jeong, Je-Chang (한양대학교 전자통신컴퓨터공학과 영상통신 및 신호처리 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.5C, 2007 , pp. 487-495 More about this Journal
Abstract
When error occurs during the network transmission of the image, the quality of the restored image is very serious. Therefore to maintain the received image quality, the error concealment technique is necessary. This paper presents an efficient spatial error concealment method using adaptive edge-oriented interpolation. It deals with errors on slice level. The proposed method uses boundary matching method having 2-step processes. We divide error block into external and internal region, adaptively restore each region. Because this method use overall as well as local edge characteristics, it preserves edge continuity and texture feature. The proposed technique reduces the complexity and provide better reconstruction quality for damaged images than the previous methods.
Keywords
Spatial Error Concealment; Directional Interpolation; Boundary Matching Algorithm; Edge-Oriented; Postprocessing;
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