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dc.contributor.authorGan, Xiangchaoen_US
dc.contributor.authorLiew, Alan Wee-Chungen_US
dc.contributor.authorYan, Hongen_US
dc.date.accessioned2017-04-24T12:52:12Z
dc.date.available2017-04-24T12:52:12Z
dc.date.issued2005en_US
dc.date.modified2009-03-18T07:23:10Z
dc.identifier.issn0262-8856en_US
dc.identifier.doi10.1016/j.imavis.2005.05.001en_AU
dc.identifier.urihttp://hdl.handle.net/10072/21800
dc.description.abstractIn blocking artifacts reduction based on the projection onto convex sets (POCS) technique, good constraint sets are very important. Until recently, smoothness constraint sets (SCS) are often formulated in the image domain, whereas quantization constraint set is defined in the block-based discrete cosine transform (BDCT) domain. Thus, frequent BDCT transform is inevitable in alternative projections. In this paper, based on signal and quantization noise statistics, we proposed a novel smoothness constraint set in the BDCT transform domain via the Wiener filtering concept. Experiments show that POCS using this smoothness constraint set not only has good convergence but also has better objective and subjective performance. Moreover, this set can be used as extra constraint set to improve most existing POCS-based image postprocessing methods.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherElsevier Scienceen_US
dc.publisher.placeNetherlandsen_US
dc.publisher.urihttp://www.sciencedirect.com/science/journal/02628856en_AU
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom731en_US
dc.relation.ispartofpageto737en_US
dc.relation.ispartofissue8en_US
dc.relation.ispartofjournalImage and Vision Computingen_US
dc.relation.ispartofvolume23en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchcode280203en_US
dc.titleA Smoothness Constraint Set based on Local Statistics of BDCT Coefficients for Image Postprocessingen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2005
gro.hasfulltextNo Full Text


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