传递函数在生物组织光传输问题中的应用

本文将传递函数的概念引入生物组织光传输问题,并将传递函数理论用于面光源照射下生物组织内特定深度层面上光场强度分布的理论计算。结合Monte Carlo模拟获取脉冲相应函数,我们分析了不同面光源照射下层状组织样品透射面上的光场强度分布。理论计算结果与实验测试结果的一致性较好,这充分说明了本文建立的基于Monte Carlo模拟的传递函数方法是一种处理面光源照射下生物组织内光场空间的直接而有效的手段。

Light Transport in Biological Tissues:Transfer Function's Introduction and its Applications

In this paper, the concept of transfer function in biological tissues is introduced, thus light distribution on the plane of certain depth in the biological tissues irradiated by surface light source can be obtained by transfer function theory simply. Combining Monte Carlo simulation obtaining the impulse response function, we calculate the light distribution on the emitting surface of artificial biological tissue irradiated by different surface light sources. All theoretical calculating results are well matched with those obtained by the CCD-based experimental measurements. Our research verifies that Monte Carlo based transfer function theory is a direct and effective tool in dealing with light distribution and propagation in biological tissues irradiated by complex surface light sources.