用于浑浊介质光反射率的蒙特卡罗模拟与扩散理论混合模型。
Hybrid model of Monte Carlo simulation and diffusion theory for light reflectance by turbid media.
作者信息
Wang L, Jacques S L
机构信息
Laser Biology Research Laboratory, University of Texas M. D. Anderson Cancer Center, Houston 77030.
出版信息
J Opt Soc Am A Opt Image Sci Vis. 1993 Aug;10(8):1746-52. doi: 10.1364/josaa.10.001746.
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.
半无限混浊介质的光反射率通过蒙特卡罗模拟和扩散理论的混合模型来模拟，该模型结合了源附近蒙特卡罗模拟的准确性和远离源时扩散理论的速度。例如，当混浊介质具有以下光学特性——吸收系数1cm⁻¹、散射系数100cm⁻¹、各向异性0.9以及折射率匹配边界——时，混合模拟比纯蒙特卡罗模拟快7倍（追踪了100,000个光子包），并且两种模拟之间的差异在蒙特卡罗模拟的2个标准差范围内。
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