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Article: Wavelet domain compounding for speckle reduction in optical coherence tomography

TitleWavelet domain compounding for speckle reduction in optical coherence tomography
Authors
Issue Date2013
PublisherSPIE - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/jbo
Citation
Journal of Biomedical Optics, 2013, v. 18 n. 9, article no. 096002 How to Cite?
AbstractVisibility of optical coherence tomography (OCT) images can be severely degraded by speckle noise. A computationally efficient despeckling approach that strongly reduces the speckle noise is reported. It is based on discrete wavelet transform (DWT), but eliminates the conventional process of threshold estimation. By decomposing an image into different levels, a set of sub-band images are generated, where speckle noise is additive. These sub-band images can be compounded to suppress the additive speckle noise, as DWT coefficients resulting from speckle noise tend to be approximately decorrelated. The final despeckled image is reconstructed by taking the inverse wavelet transform of the new compounded sub-band images. The performance of speckle reduction and edge preservation is controlled by a single parameter: the level of wavelet decomposition. The proposed technique is applied to intravascular OCT imaging of porcine carotid arterial wall and ophthalmic OCT images. Results demonstrate the effectiveness of this technique for speckle noise reduction and simultaneous edge preservation. The presented method is fast and easy to implement and to improve the quality of OCT images.
Persistent Identifierhttp://hdl.handle.net/10722/200623
ISSN
2015 Impact Factor: 2.556
2015 SCImago Journal Rankings: 1.201
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorXu, Jen_US
dc.contributor.authorOu, Hen_US
dc.contributor.authorSun, Cen_US
dc.contributor.authorChui, PCen_US
dc.contributor.authorYang, VXDen_US
dc.contributor.authorLam, EYMen_US
dc.contributor.authorWong, KKYen_US
dc.date.accessioned2014-08-21T06:52:43Z-
dc.date.available2014-08-21T06:52:43Z-
dc.date.issued2013en_US
dc.identifier.citationJournal of Biomedical Optics, 2013, v. 18 n. 9, article no. 096002en_US
dc.identifier.issn1083-3668-
dc.identifier.urihttp://hdl.handle.net/10722/200623-
dc.description.abstractVisibility of optical coherence tomography (OCT) images can be severely degraded by speckle noise. A computationally efficient despeckling approach that strongly reduces the speckle noise is reported. It is based on discrete wavelet transform (DWT), but eliminates the conventional process of threshold estimation. By decomposing an image into different levels, a set of sub-band images are generated, where speckle noise is additive. These sub-band images can be compounded to suppress the additive speckle noise, as DWT coefficients resulting from speckle noise tend to be approximately decorrelated. The final despeckled image is reconstructed by taking the inverse wavelet transform of the new compounded sub-band images. The performance of speckle reduction and edge preservation is controlled by a single parameter: the level of wavelet decomposition. The proposed technique is applied to intravascular OCT imaging of porcine carotid arterial wall and ophthalmic OCT images. Results demonstrate the effectiveness of this technique for speckle noise reduction and simultaneous edge preservation. The presented method is fast and easy to implement and to improve the quality of OCT images.-
dc.languageengen_US
dc.publisherSPIE - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/jbo-
dc.relation.ispartofJournal of Biomedical Opticsen_US
dc.rightsJournal of Biomedical Optics. Copyright © SPIE - International Society for Optical Engineering.-
dc.rightsCopyright 2013 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subject.meshCarotid Arteries - anatomy and histology-
dc.subject.meshRetina - anatomy and histology-
dc.subject.meshSignal Processing, Computer-Assisted-
dc.subject.meshSwine-
dc.subject.meshTomography, Optical Coherence - methods-
dc.titleWavelet domain compounding for speckle reduction in optical coherence tomographyen_US
dc.typeArticleen_US
dc.identifier.emailOu, H: haiyanou@hku.hken_US
dc.identifier.emailChui, PC: pcchui@eee.hku.hken_US
dc.identifier.emailLam, EYM: elam@eee.hku.hken_US
dc.identifier.emailWong, KKY: kywong04@hkucc.hku.hken_US
dc.identifier.authorityChui, PC=rp00114en_US
dc.identifier.authorityLam, EYM=rp00131en_US
dc.identifier.authorityWong, KKY=rp00189en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1117/1.JBO.18.9.096002-
dc.identifier.pmid24002189-
dc.identifier.scopuseid_2-s2.0-84887985891-
dc.identifier.hkuros233677en_US
dc.identifier.volume18-
dc.identifier.issue9, article no. 096002-
dc.identifier.isiWOS:000324747300006-
dc.publisher.placeUnited States-

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