Wavelet-Based Post-Processing of Low Bit Rate Transform Coded Images

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dc.citation.bibtexNametechreporten_US
dc.citation.journalTitleRice University CML Technical Reporten_US
dc.contributor.authorGopinath, Ramesh A.en_US
dc.contributor.authorLang, Markusen_US
dc.contributor.authorGuo, Haitaoen_US
dc.contributor.authorOdegard, Jan E.en_US
dc.contributor.orgDigital Signal Processing (http://dsp.rice.edu/)en_US
dc.contributor.orgCML (http://cml.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:45:09Zen_US
dc.date.available2007-10-31T00:45:09Zen_US
dc.date.issued1994-01-15en_US
dc.date.modified2003-07-13en_US
dc.date.submitted2002-09-24en_US
dc.descriptionTech Reporten_US
dc.description.abstractIn this paper we propose a novel method based on wavelet thresholding for enhancement of decompressed transform coded images. Transform coding at low bit rates typically introduces artifacts associated witht he basis functions of the transform. In particular, the method works remarkably well in "deblocking" of DCT compressed images. The method is nonlinear, computationally efficient, and spatially adaptive and has the distinct feature that it removes artifacts yet retain sharp features in the images. An important implication of this result is that iamges coded using the JPEG standard can efficiently be postprocessed to give significantly improved visual quality in the images. The algorithm can use a conventional JPEG encoder and decoder for which VLSI chips are available.en_US
dc.identifier.citationR. A. Gopinath, M. Lang, H. Guo and J. E. Odegard, "Wavelet-Based Post-Processing of Low Bit Rate Transform Coded Images," <i>Rice University CML Technical Report,</i> 1994.en_US
dc.identifier.urihttps://hdl.handle.net/1911/19910en_US
dc.language.isoengen_US
dc.subjectwaveleten_US
dc.subjectimage transformen_US
dc.subject.keywordwaveleten_US
dc.subject.keywordimage transformen_US
dc.subject.otherWavelet based Signal/Image Processingen_US
dc.titleWavelet-Based Post-Processing of Low Bit Rate Transform Coded Imagesen_US
dc.typeReporten_US
dc.type.dcmiTexten_US
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