12 February 2010 Image reconstruction using wavelet multi-resolution technique for time-domain diffuse optical tomography
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Proceedings Volume 7557, Multimodal Biomedical Imaging V; 755703 (2010) https://doi.org/10.1117/12.840360
Event: SPIE BiOS, 2010, San Francisco, California, United States
Abstract
It is generally believed that the inverse problem in diffuse optical tomography (DOT) is highly ill-posed and its solution is always under-determined and sensitive to noise, which is the main problem in the application of DOT. In this paper, we propose a method on image reconstruction for time-domain diffuse optical tomography based on panel detection and Finite-Difference Method, and introduce an approach to reduce the number of unknown parameters in the reconstruction process. We propose a multi-level scheme to reduce the number of unknowns by parameterizing the spatial distribution of optical properties via wavelet transform and then reconstruct the coefficients of this transform. Compared with previous traditional uni-level full spatial domain algorithm, this method can efficiently improve the reconstruction quality. Numerical simulations show that wavelet-based multi-level inversion is superior to the uni-level algebraic reconstruction technique.
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Fang Yang, Fang Yang, Feng Gao, Feng Gao, Yuting Jiao, Yuting Jiao, Huijuan Zhao, Huijuan Zhao, } "Image reconstruction using wavelet multi-resolution technique for time-domain diffuse optical tomography", Proc. SPIE 7557, Multimodal Biomedical Imaging V, 755703 (12 February 2010); doi: 10.1117/12.840360; https://doi.org/10.1117/12.840360
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