{"title":"Reconstruction of missing blocks in JPEG picture transmission","authors":"M. Ancis, D. Giusto","doi":"10.1109/PACRIM.1999.799533","DOIUrl":null,"url":null,"abstract":"The paper deals with error concealment in block-coded image transmission over noisy channels. In particular, it proposes a novel algorithm for missing block reconstruction in the frequency domain. In fact, damaged blocks are recovered by interpolating the DCT coefficients of available neighboring blocks. Coefficient interpolation is investigated in four different variants; median and edge-based interpolation are chosen for their capabilities in high-quality reconstruction. Experimental results show a good performance in homogeneous and textured regions, as well as in blocks containing edges.","PeriodicalId":176763,"journal":{"name":"1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"27","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999). Conference Proceedings (Cat. No.99CH36368)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PACRIM.1999.799533","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 27
Abstract
The paper deals with error concealment in block-coded image transmission over noisy channels. In particular, it proposes a novel algorithm for missing block reconstruction in the frequency domain. In fact, damaged blocks are recovered by interpolating the DCT coefficients of available neighboring blocks. Coefficient interpolation is investigated in four different variants; median and edge-based interpolation are chosen for their capabilities in high-quality reconstruction. Experimental results show a good performance in homogeneous and textured regions, as well as in blocks containing edges.
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