Total variation regularization for the EM-like image reconstruction algorithm of diffuse optical tomography
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. Frechet 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.
Caifang Wang Zhenyan Wang
Department of Mathematics Shanghai Maritime University Shanghai 201306 Ningbo Dahongying University Zhejiang 315175
国际会议
上海
英文
543-547
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）