采用条纹管激光成像系统的偏振成像实验  

Experiment of laser polarization imaging using streak tube laser imaging system

作　　者：王骐[1] 梁小雪[1] 魏靖松[1] 孙剑峰[1] 

机构地区：[1]哈尔滨工业大学可调谐激光技术国家级重点实验室,黑龙江哈尔滨150001

出　　处：《红外与激光工程》2010年第3期427-430,共4页Infrared and Laser Engineering

基　　金：国家自然科学基金资助项目

摘　　要：采用条纹管激光成像系统的激光偏振成像是对现有的条纹管激光三维成像的进一步延伸,如果在充分利用该成像系统获得的强度像和距离像的基础上,再加上偏振信息,则能实现对目标高精度的探测和识别。对采用条纹管的激光偏振成像进行了初步的实验研究,提出了两次测量的偏振成像实验方法,处理了实验中获得的几种特定目标的条纹图像,得到了目标的强度像和偏振度图像,并进行了比较。结果表明:偏振度图像比强度像对比度高,克服了光源辐照不均匀的缺点。证实了偏振成像的可行性,为完善成像实验系统,提出了用一次测量就能完成偏振成像的实验方法,融合强度像和偏振度图像的处理方法将实现对目标更高精度的探测。Laser polarization imaging using streak tube laser imaging system is an extension of the existing streak tube laser 3D imaging. Adding polarization information to the intensity and range information, highly accurate detection and identification of targets can be achieved. The primary study of streak tube laser polarization imaging was experimentally demonstrated. The two measurement methods had been proposed. By processing the streak tube images of several special targets, intensity image and degree of polarization image could be obtained and compared. The results show that the degree of polarization image has better contrast than intensity image, and overcome the drawback of the irradiation nonuniformity. Polarization imaging was proved to be available in the streak tube laser imaging system, which has a good performance. The combination of intensity image and degree of polarization image would be a choice for more accurate detection.

关 键 词：激光偏振成像 偏振度 MUELLER矩阵 目标识别 

分 类 号：TN959.17[电子电信—信号与信息处理]