Title :
An effective forward model based on accelerated Monte Carlo method for diffusion optical tomography imaging systems
Author :
Shih-Yang Wu ; Wai-Chi Fang
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
In noninvasive tomography, subcutaneous abnormal tissue can change the absorption coefficient of light. This paper explores diffusion optical tomography. It uses the amount of incident light diffusing to the surface of the skin to detect light intensity at a specific position. The specific reconstruction algorithm is used to reconstruct the distribution of abnormal tissue in detection areas. This paper proposes a forward model for diffusion optical tomography. Based on an accelerated Monte Carlo method, the forward model saves simulation time when detecting light propagation in subcutaneous tissue. This technique is used to examine the reconstruction algorithm to evaluate abnormal tissue distribution accuracy.
Keywords :
Monte Carlo methods; absorption coefficients; biodiffusion; biomedical optical imaging; image reconstruction; medical image processing; optical tomography; skin; abnormal tissue distribution accuracy; accelerated Monte Carlo method; diffusion optical tomography imaging systems; forward model; light absorption coefficient; light intensity; light propagation; noninvasive tomography; reconstruction algorithm; skin; subcutaneous abnormal tissue; Absorption; Detectors; Light sources; Monte Carlo methods; Photonics; Scattering; Vectors;
Conference_Titel :
Biomedical Circuits and Systems Conference (BioCAS), 2012 IEEE
Conference_Location :
Hsinchu
Print_ISBN :
978-1-4673-2291-1
Electronic_ISBN :
978-1-4673-2292-8
DOI :
10.1109/BioCAS.2012.6418442