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

Volume

1

fYear

2011

fDate

15-17 Oct. 2011

Firstpage

545

Lastpage

549

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering and Informatics (BMEI), 2011 4th International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-9351-7

Type

conf

DOI

10.1109/BMEI.2011.6098342

Filename

6098342