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

摘要

Innear-infraredspectroscopy,fiberopticprobeisusuallyappliedtoincidentlightintothebio-sampleanddetectthespatialandtemporalresolvedopticalsignalre-emittedfromtheturbidmedium.Inthispoint-source-point-detectormeasurementsystem,seedPerturbationMonteCarlo(Pmc)methodisaneffectivemodeltoperformtheforwardsimulation.Inourstudy,theintegrationofparallelcomputingwithgraphicsprocessingunits(GPU)intotheexistingseedPmcmethodsubstantiallyacceleratethespeedoftheoriginalsimulation.TheGPUbasedseedPmcprovideanexcellentsolutionfortheapplicationoffiberopticprobeinbothhomogeneousaheterogeneousturbidmedium...