Abstract:
:We report a simulation study on diffuse reflective optical computed tomography, in which continuous-wave sources and detectors are placed on the plane surface of a semi-infinite body. We adopted a simple Tikhonov regularization in the inverse problem and demonstrated the feasibility of three-dimensional reconstruction of the absorption coefficient change. The spatial resolution of the reconstructed image was shown to be degrading markedly with the depth. The regularization parameter should be chosen appropriately considering the trade-off between the reconstructed image noise and the spatial resolution. We analysed the dependence of the spatial resolution of the reconstructed image on the regularization parameter and the depth, and also the behaviour of the reconstructed image noise on the regularization parameter and the depth.
journal_name
Phys Med Bioljournal_title
Physics in medicine and biologyauthors
Endoh R,Suzuki A,Fujii M,Nakayama Kdoi
10.1088/0031-9155/49/10/004subject
Has Abstractpub_date
2004-05-21 00:00:00pages
1881-9issue
10eissn
0031-9155issn
1361-6560journal_volume
49pub_type
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