基于数值仿真的光学层析成像传感器结构研究  

Research on the Structure of an Optical Tomography Sensor Based on Numerical Simulations

作　　者：余善恩[1] 杨文东 李华军 Yu Shanen;Yang Wendong;Li Huajun(School of Automation,Hangzhou Dianzi University,Hangzhou 310018,Zhejiang,China)

机构地区：[1]杭州电子科技大学自动化学院,浙江杭州310018

出　　处：《激光与光电子学进展》2022年第22期301-309,共9页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(51906053)。

摘　　要：光学层析成像传感器结构设计对提高重建图像质量、降低结构成本、减少系统复杂度有着重要作用。对不同分布场景、不同传感器结构下的重建图像进行了研究,研究结果表明:分布场景与传感器结构对重建图像质量均有较大影响;某种场景下变换传感器数量得到的参数曲线具有一致性的趋势;30×30的传感器结构在不同分布场景下的重建图像都有较好的表现。根据研究结果并考虑传感器尺寸、成本、可行性等因素,设计了一套30×30的激光器-光电二极管光学层析成像硬件装置,并利用该装置进行了不同分布截面状态的光学层析成像静态实验。实验结果表明,该成像硬件装置可以较为准确地重建不同分布截面状态。The structural design of optical tomography sensors is crucial for enhancing the reconstructed image quality,reducing the structural cost,and reducing the system complexity.In this study,we investigate the reconstructed images under various distributed scenes and various sensor structures.The findings reveal that the scene’s simultaneous interpreting and sensor structure have a significant effect on the reconstructed image quality.The parameter curves generated by changing the number of sensors in a scene follow a similar pattern;the sensor structure of 30×30 has good performance in the reconstructed images under various distribution scenes.According to the study findings and considering the factors,including sensor size,cost,and feasibility,a set of 30×30 laser photodiode optical tomography hardware devices is designed.The static experiments of optical tomography with various distribution cross-section states are conducted using the device.The findings demonstrate that the image hardware device can accurately reconstruct various distribution cross-section states.

关 键 词：传感器 传感器结构 仿真 光学层析成像 投影 

分 类 号：TH701[机械工程—仪器科学与技术]