| 基于Monte Carlo方法的扩散光在组织体中传输过程研究 |
| |
| 引用本文： | 陈兴稣,王雪峰,郜参观.基于Monte Carlo方法的扩散光在组织体中传输过程研究[J].科学技术与工程,2016,16(5):196-200. |
| |
| 作者姓名： | 陈兴稣 王雪峰 郜参观 |
| |
| 作者单位： | 伊犁师范学院电子与信息工程学院 新疆 伊宁,伊犁师范学院电子与信息工程学院 新疆 伊宁;南京大学电子科学与工程学院 江苏 南京,伊犁师范学院电子与信息工程学院 新疆 伊宁 |
| |
| 基金项目： | 国家自然科学基金项目（面上项目,重点项目,重大项目） |
| |
| 摘 要： | 光在组织体中的传输过程是扩散光的随机吸收和散射的过程,采用辐射传输方程来表示,由于方程比较复杂,无法直接得到解析解,传统方法是通过蒙特卡罗(Monte Carlo)仿真模拟。通过对经典蒙特卡罗方法中的步长和权重的更改,完成对光子在组织体中传输过程的快速仿真。在相同的仿真条件下,同时对经典蒙特卡罗方法和改进的方法进行仿真实验,改进方法能够大幅度提高仿真速度;并对于含有异质子的组织体进行仿真,结果表明改进的方法不仅提高了速度,而且保证了实验结果的准确性。
|
| 关 键 词： | 蒙特卡罗仿真 扩散光 步长 权重 |
| 收稿时间： | 2015/10/21 0:00:00 |
| 修稿时间： | 2015/10/21 0:00:00 |
Based on Monte Carlo Simulation for Optical Transmission in Tissue |
| |
| Chen Xingsu,Wang Xuefeng and Gao Canguan.Based on Monte Carlo Simulation for Optical Transmission in Tissue[J].Science Technology and Engineering,2016,16(5):196-200. |
| |
| Authors: | Chen Xingsu Wang Xuefeng and Gao Canguan |
| |
| Institution: | School of Electronic Information Engineering, Yili Normal University, Yining Xinjiang |
| |
| Abstract: | Light transmission in tissue is a random process of absorption and scattering of diffuse optical, and expressed by the radiative transfer equation. Because the equation is complex, it can"t get the analytic solution directly, the traditional method is the Monte Carlo simulation. The paper proposed a modified method in step and weight of traditional Monte Carlo simulation, and complete the photons transmission process in tissue quickly. With the same simulation conditions, the experiment is simulated by the Monte Carlo method and improved method, and it shown the improved method can greatly improve the simulation speed; Then the simulation results with heterogeneous medium shown that the proposed method is effectiveness, not only improve the speed, but also ensure the accuracy. |
| |
| Keywords: | Monte Carlo simulation Diffuse optical Step Weight |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《科学技术与工程》浏览原始摘要信息 |
| 点击此处可从《科学技术与工程》下载免费的PDF全文 |
|
