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Conference Paper: Image reconstruction from nonuniformly spaced samples in Fourier domain optical coherence tomography

TitleImage reconstruction from nonuniformly spaced samples in Fourier domain optical coherence tomography
Authors
KeywordsFourier Domain Optical Coherence Tomography (Fd-Oct)
Inverse Imaging
L 1 Norm
Nonuniform Discrete Fourier Transform (Nudft)
Total Variation (Tv)
Issue Date2012
PublisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml
Citation
Proceedings Of Spie - The International Society For Optical Engineering, 2012, v. 8296 How to Cite?
AbstractIn this work, we use inverse imaging for object reconstruction from nonuniformly-spaced samples in Fourier domain optical coherence tomography (FD-OCT). We first model the FD-OCT system with a linear system of equations, where the source power spectrum and the nonuniformly-spaced sample positions are represented accurately. Then, we reconstruct the object signal directly from the nonuniformly-spaced wavelength measurements. With the inverse imaging method, we directly estimate the 2D cross-sectional object image instead of a set of independent A-line signals. By using the Total Variation (TV) as a constraint in the optimization process, we reduce the noise in the 2D object estimation. Besides TV, object sparsity is also used as a regularization for the signal reconstruction in FD-OCT. Experimental results demonstrate the advantages of our method, as we compare it with other methods. © 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Persistent Identifierhttp://hdl.handle.net/10722/158779
ISSN
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKe, Jen_US
dc.contributor.authorZhu, Ren_US
dc.contributor.authorLam, EYen_US
dc.date.accessioned2012-08-08T09:01:17Z-
dc.date.available2012-08-08T09:01:17Z-
dc.date.issued2012en_US
dc.identifier.citationProceedings Of Spie - The International Society For Optical Engineering, 2012, v. 8296en_US
dc.identifier.issn0277-786Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/158779-
dc.description.abstractIn this work, we use inverse imaging for object reconstruction from nonuniformly-spaced samples in Fourier domain optical coherence tomography (FD-OCT). We first model the FD-OCT system with a linear system of equations, where the source power spectrum and the nonuniformly-spaced sample positions are represented accurately. Then, we reconstruct the object signal directly from the nonuniformly-spaced wavelength measurements. With the inverse imaging method, we directly estimate the 2D cross-sectional object image instead of a set of independent A-line signals. By using the Total Variation (TV) as a constraint in the optimization process, we reduce the noise in the 2D object estimation. Besides TV, object sparsity is also used as a regularization for the signal reconstruction in FD-OCT. Experimental results demonstrate the advantages of our method, as we compare it with other methods. © 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).en_US
dc.languageengen_US
dc.publisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xmlen_US
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_US
dc.subjectFourier Domain Optical Coherence Tomography (Fd-Oct)en_US
dc.subjectInverse Imagingen_US
dc.subjectL 1 Normen_US
dc.subjectNonuniform Discrete Fourier Transform (Nudft)en_US
dc.subjectTotal Variation (Tv)en_US
dc.titleImage reconstruction from nonuniformly spaced samples in Fourier domain optical coherence tomographyen_US
dc.typeConference_Paperen_US
dc.identifier.emailLam, EY:elam@eee.hku.hken_US
dc.identifier.authorityLam, EY=rp00131en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1117/12.907331en_US
dc.identifier.scopuseid_2-s2.0-84857945250en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84857945250&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume8296en_US
dc.identifier.isiWOS:000302533300023-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridKe, J=9045258900en_US
dc.identifier.scopusauthoridZhu, R=49562175700en_US
dc.identifier.scopusauthoridLam, EY=7102890004en_US

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