Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/84093
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dc.contributor.authorLi, Xiaojieen
dc.contributor.authorKong, Adams Wai Kinen
dc.date.accessioned2017-07-20T03:49:40Zen
dc.date.accessioned2019-12-06T15:38:11Z-
dc.date.available2017-07-20T03:49:40Zen
dc.date.available2019-12-06T15:38:11Z-
dc.date.issued2017en
dc.identifier.citationLi, X., & Kong, A. W. K. (2017). A multi-model restoration algorithm for recovering blood vessels in skin images. Image and Vision Computing, 61, 40-53.en
dc.identifier.issn0262-8856en
dc.identifier.urihttps://hdl.handle.net/10356/84093-
dc.description.abstractBlood vessels under skin surface have been used as a biometric trait for many years. Traditionally, they are used only in commercial and governmental applications because infrared images are required to capture high quality blood vessels. Recent research results demonstrate that blood vessels can be extracted directly from color images potentially for forensic applications. However, color images taken by consumer cameras are likely compressed by the JPEG compression method. As a result, the quality of the color images is seriously degraded, which makes the blood vessels difficult to be visualized. In this paper, a multi-model restoration algorithm (MMRA) is presented to remove blocking artifacts in JPEG compressed images and restore the lost information. Two mathematical properties in the JPEG compression process are identified and used to design MMRA. MMRA is based on a tailor-made clustering scheme to group training data and learns a model, which predicts original discrete cosine transform coefficients, from each grouped dataset. An open skin image database containing 978 forearm images and 916 thigh images with weak blood vessel information and a set of diverse skin images collected from the Internet are used to evaluate MMRA. Different resolutions and different compression factors are examined. The experimental results show clearly that MMRA restores blood vessels more effectively than the state-of-the-art deblocking methods.en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent28 p.en
dc.language.isoenen
dc.relation.ispartofseriesImage and Vision Computingen
dc.rights© 2017 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Image and Vision Computing, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.imavis.2017.02.006].en
dc.subjectBiometricsen
dc.subjectJPEG compressionen
dc.titleA multi-model restoration algorithm for recovering blood vessels in skin imagesen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Computer Science and Engineeringen
dc.identifier.doi10.1016/j.imavis.2017.02.006en
dc.description.versionAccepted versionen
item.grantfulltextopen-
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