Please use this identifier to cite or link to this item: https://doi.org/10.1117/1.3290809
Title: Multistage inversion algorithm for biological tissue imaging
Authors: Agarwal, K. 
Chen, L.
Chen, N. 
Chen, X. 
Keywords: Inverse problem
Optical diffusion
Reconstruction
Tomography
Issue Date: 2010
Citation: Agarwal, K., Chen, L., Chen, N., Chen, X. (2010). Multistage inversion algorithm for biological tissue imaging. Journal of Biomedical Optics 15 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1117/1.3290809
Abstract: A new inversion method for diffuse optical tomography is proposed. This is a multistage algorithm, that uses a signal subspacebased method to simplify the inverse problem and proposes a guided iterative inversion process to improve the imaging. First, subspacebased analysis is used to determine the voxels that definitely belong to the background and exclude them from further consideration. Then, the pseudo-inverse technique is applied for reconstruction. In the final stage, the reconstruction is improved iteratively by finding and excluding more voxels belonging to background. The method reduces the ill-posedness of the image reconstruction problem iteratively such that good imaging results are obtained for multiple heterogeneities having complicated geometries even in the presence of 3% additive white noise. © 2010 Society of Photo-Optical Instrumentation Engineers.
Source Title: Journal of Biomedical Optics
URI: http://scholarbank.nus.edu.sg/handle/10635/50988
ISSN: 10833668
DOI: 10.1117/1.3290809
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