| 蒙特卡罗方法仿真光在多层结构农产品中的传输及试验研究 |
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| 引用本文： | 王忠义,侯瑞锋,黄岚,徐志龙,王成,乔晓军.蒙特卡罗方法仿真光在多层结构农产品中的传输及试验研究[J].农业工程学报,2007,23(5):1-7. |
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| 作者姓名： | 王忠义 侯瑞锋 黄岚 徐志龙 王成 乔晓军 |
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| 作者单位： | 1. 中国农业大学信息与电气工程学院,北京,100083
2. 国家农业信息化工程技术研究中心,北京,100089 |
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| 基金项目： | 国家科技攻关计划;中国农业大学校科研和教改项目 |
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| 摘 要： | 通过对光与农产品相互作用物理本质的分析，采用一种求解光子在生物组织中迁移规律的蒙特卡罗(Monte Carlo)计算方法，并设计了基于Windows蒙特卡罗仿真软件。对大量光子进行仿真计算就可以获得漫反射率、平均光学路径、空间灵敏度图像等。利用液体模型的实测光学参数进行仿真，其结果与试验结果符合。进一步对多层结构的农产品样品进行了蒙特卡罗仿真研究，可为合理设计无损检测的传感器提供依据。
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| 关 键 词： | 蒙特卡罗仿真方法 光子迁移 漫射光 农产品 |
| 文章编号： | 1002-6819（2007）5-0001-07 |
| 收稿时间： | 2006/12/22 0:00:00 |
| 修稿时间： | 2/4/2007 12:00:00 AM |
Light transport in multi-layered farm products by using Monte Carlo simulation and experimental investigation |
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| Wang Zhongyi,Hou Ruifeng,Huang Lan,Xu Zhilong,Wang Cheng and Qiao Xiaojun.Light transport in multi-layered farm products by using Monte Carlo simulation and experimental investigation[J].Transactions of the Chinese Society of Agricultural Engineering,2007,23(5):1-7. |
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| Authors: | Wang Zhongyi Hou Ruifeng Huang Lan Xu Zhilong Wang Cheng and Qiao Xiaojun |
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| Institution: | College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China;National Engineering Research Center for Information Technology in Agriculture, Beijing 100089, China;College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China;National Engineering Research Center for Information Technology in Agriculture, Beijing 100089, China;National Engineering Research Center for Information Technology in Agriculture, Beijing 100089, China;National Engineering Research Center for Information Technology in Agriculture, Beijing 100089, China |
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| Abstract: | The Monte Carlo method for simulating photon migration in sample of farm products was introduced by means of analysis of interaction between light and sample of farm product, and a software of Monte Carlo simulation based on Windows was designed. The reflectance, mean optical pathlength and spatial sensitivity profile image were obtained by simulation with large numbers of photons. Moreover, Monte Carlo method, the most exact solution for light transport in tissue, was studied for modeling photon random migration in single-layered and multi-layered samples. The simulation result is in good agreement with experimental data on tissue phantoms. The results show that Monte Carlo method can provide theoretical predication in the design of near-infrared optic sensor. |
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| Keywords: | Monte Carlo simulation method photon migration diffusion light farm products |
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