IEEE Transactions on Image Processing, vol. 7, no. 7, pp. 1056-1061, July 1998

Best Neighborhood Matching: An Information Loss Restoration Technique for Block-based Image Coding Systems

Zhou Wang^{1, 2}, Yinglin Yu¹, and David Zhang²

¹ Department of Electronic & Communication Engineering, South China Univ. of Technology, Guangzhou, China

² Department of Computer Science, City University of Hong Kong, Hong Kong, China

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Abstract: Imperfect transmission of block-coded images often results in lost blocks. A novel error concealment method called best neighborhood matching (BNM) is presented by using a special kind of information redundancy-blockwise similarity within the image. The proposed algorithm can utilize the information of not only neighboring pixels, but also remote regions in the image. Very good restoration results are obtained by experiments.

Index Terms: image coding; information loss restoration; block-based image coding systems; imperfect transmission; best neighborhood matching; block-coded images; error concealment method; information redundancy-blockwise similarity; algorithm; neighboring pixels; restoration results; experiments; image regions; adaptive algorithm