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A Spatial Error Concealment Using Pixelwise Fine Directional Interpolation  

Kim, Won-Ki (한양대학교 전자통신컴퓨터공학과 영상통신 및 신호처리 연구실)
Koo, Ja-Sung (한양대학교 전자통신컴퓨터공학과 영상통신 및 신호처리 연구실)
Jin, Soon-Jong (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.2C, 2007 , pp. 124-131 More about this Journal
Abstract
This paper presents a block loss recovery technique for the image block data corrupted by transmission losses through the employment of fine directional interpolation (FDI). The proposed algorithm introduces a spatial direction vector (SDV). The SDVs are extracted from the edge information of the neighboring image data. Subsequently, the SDVs are adaptively applied to interpolate lost pixels on a pixel-by-pixel basis. This approach improves the capability to more reliably recover high-detailed contents in the corrupted block. Experimental results demonstrate that the FDI method performs better as compared to previous techniques.
Keywords
Spatial Error Concealment; Directional Interpoation; Pixelwise Interpolation; Edge-Oriented; Postprocessing;
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