摘要
根据仿生偏振导航对天空偏振模式信息的需求,设计实现了一种利用具有180°视场的鱼眼镜头构建的偏振成像系统采集天空偏振信息,并将采集得到的平面二维偏振模式经Matlab程序处理后还原为空间偏振模式分布,从偏振成像理论进行分析,并对所需要的实验设备进行标定,得到了实验中鱼眼镜头的成像公式及参数,并对所采集的图像进行视场校正。标定与校正后所得空间偏振模式分布与单次瑞利散射理论模型保持一致,且具有较高的相似度,其中偏振方位角相似度可达82.4%,偏振度相似度可达96.91%。
According to the needs of bionic polarized navigation to sky polarization pattern, a polarization imaging system, based on fish-eye lens with the field of view of 180° is designed to gather sky polarization information. Besides, the collected two-dimensional plane polarization pattern through Matlab software processing can revert to the spatial polarization pattern. The polarization imaging theories are introduced. The experimental instruments are calibrated, imaging formula and parameters of fisheye lens are obtained in the experiment And the images collected by polarization imaging system are corrected in the field of viewing. By using of the calibrated systems and imaging The spatial polarization pattern after calibration and correction is consistent with the single Rayleigh scattering theory model. And they are in a high degree of similarity, azimuth polarization can reach 82.4%, and the degree of polarization similarity is up to 96.91%.
出处
《激光与光电子学进展》
CSCD
北大核心
2015年第9期128-135,共8页
Laser & Optoelectronics Progress
基金
国家自然科学基金培养项目、面上项目、青年基金(91123016,61171056,51105345)
国家973计划(2012CB723404)
国家杰出青年科学基金(51225504)
山西省高等学校优秀青年学术带头人支持计划(晋教科[2013]8号)
