激光与光电子学进展, 2018, 55 (7): 071010, 网络出版: 2018-07-20   

水下材质识别技术的研究 下载: 658次

Study of Underwater Material Recognition Technology
李代林 1,2,*于洋 1,2李贵雷 1,2杨丹 1,2张传法 1,2王宁 1,2
作者单位
1 朱化凤
2 中国石油大学(华东)理学院,山东青岛266580
摘要
水下成像技术是水下探测的一个研究热点。针对目前水下成像装置存在的不足,设计了新的水下目标成像及处理系统,对该系统所采用的成像方案、成像原理、成像分析及处理算法进行了研究。基于菲涅耳定律进行理论分析和数值模拟,使用MATLAB软件对常见材质进行反射偏振特性模拟,获取反射光中两垂直分量振幅比和相位差;采用改进的成像系统获得物体的斯托克斯参量;对所得参量进行处理,计算得出偏振度和偏振角图像,将之转换至HSV及Lab空间,并对图像特点进行分析。结果表明,引入偏振度和偏振角图像能突出图像材质信息,增强实验中材质对比度,更利于人眼识别。
Abstract
Underwater imaging technology is one of the research hotspots in underwater exploration. According to the current problems of underwater imaging devices, a new target imaging and processing system is proposed. The imaging scheme, imaging principle, imaging analysis and processing algorithm are studied. Firstly, theoretical analysis and numerical simulation are carried out based on the Fresnel 's law. Specifically, the MATLAB software is used to simulate the reflection polarization characteristics, and the amplitude ratio and phase difference of two vertical components in reflected light are obtained. Secondly, in the case of liner polarized laser illumination, based on the Stokes imaging theory, the polarization information of the object is detected, and the Stokes parameters of the object are obtained. Finally, the polarization degree and polarization angle images are obtained and analyzed after being converted into HSV space and Lab space. The results show that the polarization degree and polarization angle images can highlight the material information, improve the contrast of different materials and make it more easier to be recognized by human eyes.
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李代林, 于洋, 李贵雷, 杨丹, 张传法, 王宁. 水下材质识别技术的研究[J]. 激光与光电子学进展, 2018, 55(7): 071010. 李代林, 于洋, 李贵雷, 杨丹, 张传法, 王宁. Study of Underwater Material Recognition Technology[J]. Laser & Optoelectronics Progress, 2018, 55(7): 071010.

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