Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1506
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dc.contributorDepartment of Electrical Engineering-
dc.creatorChoy, SSO-
dc.creatorYue, CN-
dc.creatorHong, SW-
dc.creatorChan, YH-
dc.date.accessioned2014-12-11T08:26:27Z-
dc.date.available2014-12-11T08:26:27Z-
dc.identifier.isbn0-7803-3583-X-
dc.identifier.urihttp://hdl.handle.net/10397/1506-
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.rights© 1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_US
dc.rightsThis material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.en_US
dc.subjectAdaptive algorithmsen_US
dc.subjectComputer simulationen_US
dc.subjectImage codingen_US
dc.subjectImage compressionen_US
dc.subjectImage qualityen_US
dc.subjectIterative methodsen_US
dc.subjectLeast squares approximationsen_US
dc.subjectSignal to noise ratioen_US
dc.subjectVector quantizationen_US
dc.titleRegularized restoration of VQ compressed images with constrained least squares approachen_US
dc.typeConference Paperen_US
dc.description.otherinformationAuthor name used in this publication: S. W. Hongen_US
dcterms.abstractIn this paper, an iterative algorithm is proposed to restore VQ-encoded images. This algorithm incorporates adaptivity into simple CLS restoration algorithm by weighting every pixel according to its expected derivation from the original. This algorithm is fully compatible with any VQ codec to improve codec's coding performance. Computer simulations showed that the proposed scheme was superior to other conventional schemes in terms of SNR improvement. Besides, the image quality could also be improved subjectively by reducing the blocking effect.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationISCAS '97 : proceedings of 1997 IEEE International Symposium on Circuits and Systems : circuits and systems in the information age : June 9-12, 1997, Hong Kong, p. 1257-1260-
dcterms.issued1997-
dc.identifier.isiWOS:A1997BJ47Z00315-
dc.identifier.scopus2-s2.0-0030655764-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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