HYBRID MODEL OF MONTE-CARLO SIMULATION AND DIFFUSION-THEORY FOR LIGHT REFLECTANCE BY TURBID MEDIA
HYBRID MODEL OF MONTE-CARLO SIMULATION AND DIFFUSION-THEORY FOR LIGHT REFLECTANCE BY TURBID MEDIA
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DOI：
10.1364/josaa.10.001746
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发表时间：
1993-08-01
影响因子：
1.9
通讯作者：
JACQUES, SL
中科院分区：
文献类型：
--
作者：
WANG, LH;JACQUES, SL
半无限浑浊介质的光反射率采用蒙特卡罗模拟和扩散理论的混合模型，结合了靠近源的蒙特卡罗模拟的精度和远离源的扩散理论的速度。例如，当混浊介质具有以下光学特性——吸收系数1 cm-1、散射系数100 cm-1、各向异性0.9、折射率匹配边界——混合模拟比纯蒙特卡罗模拟（追踪100,000个光子包）快7倍，并且两次模拟之间的差异在蒙特卡罗模拟的2个标准差以内。
Light reflectance by semi-infinite turbid media is modeled by a hybrid of Monte Carlo simulation and diffusion theory, which combines the accuracy of Monte Carlo simulation near the source and the speed of diffusion theory distant from the source. For example, when the turbid medium has the following optical properties-absorption coefficient 1 cm-1, scattering coefficient 100 cm-1, anisotropy 0.9, and refractive-index-matched boundary-the hybrid simulation is 7 times faster than the pure Monte Carlo simulation (100,000 photon packets were traced), and the difference between the two simulations is within 2 standard deviations of the Monte Carlo simulation.