Fast Perturbation Monte Carlo simulation for heterogeneous medium and its utilization in functional near-infrared spectroscopy

5th International Conference on Advances in Optoelectronics and Micro/Nano-optics

Song, Y.M.^1 ; Li, J.W.^1 ; Cai, F.H.^1,2

State Key Laboratory of Modem Optical Instrumentations, Centre for Optical and Electromagnetic Research, Zhejiang University, Hangzhou

310058, China^1

Suzhou WilHealth Information Technology Co. Ltd, Suhou

215500, China^2

关键词: Fiberoptic probes;    Forward simulation;    Functional near infrared spectroscopy;    Graphics Processing Unit (GPU);    Heterogeneous medium;    Incident light;    Measurement system;    Optical signals;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/680/1/012019/pdf
DOI  :  10.1088/1742-6596/680/1/012019

来源: IOP

【 摘 要 】

In near-infrared spectroscopy, fiber optic probe is usually applied to incident light into the bio-sample and detect the spatial and temporal resolved optical signal re-emitted from the turbid medium. In this point-source-point-detector measurement system, seed Perturbation Monte Carlo (Pmc) method is an effective model to perform the forward simulation. In our study, the integration of parallel computing with graphics processing units(GPU) into the existing seed Pmc method substantially accelerate the speed of the original simulation. The GPU based seed Pmc provide an excellent solution for the application of fiber optic probe in both homogeneous a heterogeneous turbid medium.