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Conference Paper: Hyperspectral reconstruction in biomedical imaging using terahertz systems

TitleHyperspectral reconstruction in biomedical imaging using terahertz systems
Authors
KeywordsBiomedical imaging
Compressed sensing
Hyperspectral
Multi frequency
Phase information
Issue Date2010
PublisherIEEE.
Citation
The IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems (ISCAS 2010), Pars, France, 30 May-2 June 2010. In Proceedings of ISCAS, 2010, p. 2079-2082 How to Cite?
AbstractTerahertz time-domain spectroscopy (THz-TDS) is an emerging modality for biomedical imaging. It is non-ionizing and can detect differences between water content and tissue density, but the detectors are rather expensive and the scan time tends to be long. Recently, it has been shown that the compressed sensing theory can lead to a radical re-design of the imaging system with lower detector cost and shorter scan time, in exchange for computation in the image reconstruction. We show in this paper that it is in fact possible to make use of the multi-frequency nature of the terahertz pulse to achieve hyperspectral reconstruction. Through effective use of the spatial sparsity, spectroscopic phase information, and correlations across the hyperspectral bands, our method can significantly improve the reconstructed image quality. This is demonstrated through using a set of experimental THz data captured in a single-pixel terahertz system. ©2010 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/126057
ISBN
References

 

DC FieldValueLanguage
dc.contributor.authorXu, Zen_HK
dc.contributor.authorLam, EYen_HK
dc.date.accessioned2010-10-31T12:07:28Z-
dc.date.available2010-10-31T12:07:28Z-
dc.date.issued2010en_HK
dc.identifier.citationThe IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems (ISCAS 2010), Pars, France, 30 May-2 June 2010. In Proceedings of ISCAS, 2010, p. 2079-2082en_HK
dc.identifier.isbn9781424453085-
dc.identifier.urihttp://hdl.handle.net/10722/126057-
dc.description.abstractTerahertz time-domain spectroscopy (THz-TDS) is an emerging modality for biomedical imaging. It is non-ionizing and can detect differences between water content and tissue density, but the detectors are rather expensive and the scan time tends to be long. Recently, it has been shown that the compressed sensing theory can lead to a radical re-design of the imaging system with lower detector cost and shorter scan time, in exchange for computation in the image reconstruction. We show in this paper that it is in fact possible to make use of the multi-frequency nature of the terahertz pulse to achieve hyperspectral reconstruction. Through effective use of the spatial sparsity, spectroscopic phase information, and correlations across the hyperspectral bands, our method can significantly improve the reconstructed image quality. This is demonstrated through using a set of experimental THz data captured in a single-pixel terahertz system. ©2010 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEE.-
dc.relation.ispartofProceedings of the IEEE International Symposium on Circuits and Systems, ISCAS 2010en_HK
dc.rightsProceedings of the IEEE International Symposium on Circuits and Systems. Copyright © IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2010 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.-
dc.subjectBiomedical imaging-
dc.subjectCompressed sensing-
dc.subjectHyperspectral-
dc.subjectMulti frequency-
dc.subjectPhase information-
dc.titleHyperspectral reconstruction in biomedical imaging using terahertz systemsen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=9781424453085&volume=&spage=2079&epage=2082&date=2010&atitle=Hyperspectral+reconstruction+in+biomedical+imaging+using+terahertz+systems-
dc.identifier.emailLam, EY:elam@eee.hku.hken_HK
dc.identifier.authorityLam, EY=rp00131en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/ISCAS.2010.5537219en_HK
dc.identifier.scopuseid_2-s2.0-77955991619en_HK
dc.identifier.hkuros171698en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955991619&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage2079en_HK
dc.identifier.epage2082en_HK
dc.description.otherThe IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems (ISCAS 2010), Pars, France, 30 May-2 June 2010. In Proceedings of ISCAS, 2010, p. 2079-2082-
dc.identifier.scopusauthoridXu, Z=26640797900en_HK
dc.identifier.scopusauthoridLam, EY=7102890004en_HK

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