Title :
Total variation regularization for the EM-like image reconstruction algorithm of diffuse optical tomography
Author :
Wang, Caifang ; Wang, Zhenyan
Author_Institution :
Dept. of Math., Shanghai Maritime Univ., Shanghai, China
Abstract :
In previous work, an EM-like image reconstruction method for diffuse optical tomography has been presented. Followed with the assumptions and objective function in previous work, total variation regularization method to the reconstruction problem is applied and a new optimization objective function is provided. Fréchet derivative of the new objective function for absorption coefficient and diffusion coefficient are calculated. Novel iterative formulas are derived according to the Kuhn-Tucker condition. Finally, two dimensional numerical experiment is taken to test the new iterative formulas.
Keywords :
biomedical optical imaging; diffusion; image reconstruction; medical image processing; optical tomography; optimisation; EM-like image reconstruction algorithm; Frechet derivative; Kuhn-Tucker condition; absorption coefficient; diffuse optical tomography; diffusion coefficient; optimization objective function; total variation regularization; Absorption; Adaptive optics; Biomedical optical imaging; Image reconstruction; Optical imaging; Tomography; US Department of Transportation;
Conference_Titel :
Biomedical Engineering and Informatics (BMEI), 2011 4th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-9351-7
DOI :
10.1109/BMEI.2011.6098342
