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A method for three‐dimensional time‐resolved optical tomography
Author(s) -
Arridge Simon R.,
Hebden Jeremy C.,
Schweiger Martin,
Schmidt Florian E.W.,
Fry Martin E.,
Hillman Elizabeth M.C.,
Dehghani Hamid,
Delpy David T.
Publication year - 2000
Publication title -
international journal of imaging systems and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 47
eISSN - 1098-1098
pISSN - 0899-9457
DOI - 10.1002/(sici)1098-1098(2000)11:1<2::aid-ima2>3.0.co;2-j
Subject(s) - software , computer science , ideal (ethics) , optics , histogram , scattering , computational science , photon , software implementation , tomography , time of flight , algorithm , physics , computer vision , image (mathematics) , philosophy , epistemology , programming language
We present an overview of time‐resolved optical tomography together with the hardware and software methods that we have developed for a clinical instrument that implements this modality. The hardware is based on a multichannel photon‐counting technique that records the histograms of photons time‐of‐flight through highly scattering and attenuating media. The software is based on a finite element model that is iteratively updated in order to minimize the difference between measured and modeled data. We have presented a first experimental reconstruction of a three‐dimensional (3D) distribution of variable absorption and scattering coefficient, together with an ideal simulation of the same case. © 2000 John Wiley & Sons, Inc. Int J Imaging Syst Technol, 11, 2–11, 2000