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Rosenthal, A. ; Razansky, D. ; Ntziachristos, V.

Sparse signal representation at the service of quantitative optoacoustic tomography.

Proc. SPIE 7564:75640S (2010)
Verlagsversion DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
We report on a new method for extraction of quantified optical absorption maps of scattering and absorbing media using sparse representation, a relatively recent and fast emerging technique in the field of signal processing. The tomographic reconstruction is facilitated by assuming slow spatial variations of illuminating optical field along with relatively sharp changes in optical absorption coefficient. As opposed to previous approaches that utilize photon transport equation in order to correct images for inhomogeneous light distribution within the imaged object, the method herein provides an estimate for photon fluence directly from the recorded optoacoustic signals. In this way a robust quantitative performance is achieved without prior knowledge of illumination geometry and optical properties of the object.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Herausgeber Oraevsky, A. A.* ; Wang, L.V.*
Korrespondenzautor
Schlagwörter Sparse signal representation; Optoacoustics; Blind deconvolution; Quantitative imaging
ISSN (print) / ISBN 0277-786X
e-ISSN 1996-756X
Zeitschrift Proceedings of SPIE
Quellenangaben Band: 7564, Heft: , Seiten: , Artikelnummer: 75640S Supplement: ,
Verlag SPIE
Verlagsort Bellingham, WA
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Biological and Medical Imaging (IBMI)