Publication IEICE TRANSACTIONS on Information and SystemsVol.E98-DNo.4pp.976-979 Publication Date: 2015/04/01 Publicized: 2015/01/09 Online ISSN: 1745-1361 DOI: 10.1587/transinf.2014EDL8219 Type of Manuscript: LETTER Category: Image Processing and Video Processing Keyword: super-resolution, dictionary, sparse representation, patch,
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Summary: In a patch-based super-resolution algorithm, a low-resolution patch is influenced by surrounding patches due to blurring. We propose to remove this boundary effect by subtracting the blur from the surrounding high-resolution patches, which enables more accurate sparse representation. We demonstrate improved performance through experimentation. The proposed algorithm can be applied to most of patch-based super-resolution algorithms to achieve additional improvement.