基于目标边缘轮廓偏振特征的姿态分析初探

通过微面元理论的函数模型, 基于红外偏振辐射传输方程,推导分析红外偏振角与目标表面折射率、反射率及探测角度等关系的数学模型, 通过合理简化模型仿真得出偏振角随入射角的单调变化曲线; 开展红外偏振成像试验, 试验数据分析与仿真结果一致, 这表明: 目标边缘轮廓的偏振角特征与探测波长的相关性可以忽略, 在目标与背景辐射相差较小的情况下, 采用光谱辐射亮度对比度的方法无法区分目标, 而通过偏振角对比度可以明显区分-目标边缘特征, 并提出通过基于目标几何特征以及探测位置, 反演解算目标的姿态信息的新方法.

Abstract

The mathematical model of the relationship between infrared polarization angle and other parameters such as surface refractive index, reflectivity, and the detection angle was derived, based on the equation of infrared polarized radiation through micro-facet theory. Reasonable simplification for the model was made in simulation. The curve show that the polarization angle changes with the incident angle monotonously, in agree with the experimental results. It is concluded that the correlation between the polarization angle characteristics of the target edge contour and the detection wavelength can be neglected. It is difficult to distinguish between target and background by spectral radiance contrast when they have small radiation difference. While the target edge features can be obtained from the polarization angle contrast. A new method to calculate target gesture information was proposed based on geometry features of the target and the relative detection position.

参考文献

[1] SUN XiaoBing, HONG Jin, QIAO YanLi. The Study of method for feature extraction based on angle of polarization parameter image[J]. Remote Sensing Technology And Application (孙晓兵, 洪　津, 乔延利. 一种基于偏振角参数图像的特征提取方法研究.遥感技术与应用),2005,20(2):256-260.

[2] Chenault D B, Larry P J. Polarization imaging through scattering media [J]. SPIE, 2000, 4133: 124-133.

[3] Miller M A, Blumer R V, Howe J D. Active and passive swir imaging polarimetry [J]. SPIE,2001,4481: 87-99.

[4] SUN Wei, LIU ZhengKai, SHAN Lie. Manmade objects recognition with polarization information[J].Optical Technique.(孙玮,刘政凯,单列.利用偏振技术识别人造目标. 光学技术), 2004,30(3):267-269.

[5] Gartley M G. Polarimetric modeling of remotely sensed scenes in the thermal infrared [D]. Rochester Institute of Technology.2007: 55-61.

[6] Erbach P S, Pezzaniti J L, Chenault D B, et al. Design and performance of a polarized IR scene generator[J]. Proc. of SPIE, 2008, 6972: 69720Z-1~69720Z-11.

[7] Priest R G, Meier S R. Polarimetric microfacet scattering theory with application to absorptive and reflective surface[J]. Optical Engineering,2002,41(5):988-993.

[8] MA Shuai, BAI TingZhu, CAO FengMei, et al. Infrared polarimetric scene simulation based on bidirectional reflectance distribution function model[J].Acta Optical Sinica(马帅,白廷柱,曹峰梅,等.基于双向分布反射函数模型的红外偏振仿真,光学学报),2009,29(12):3357-3361.

[9] CHEN WeiLi, WANG ShuHua, JIN WeiQi, et al. Research of infrared polarization characteristics based on polarization Microsurface theory[J]. J. Infrared Millim. Waves(陈伟力,王淑华,金伟其,等.基于偏振微面元理论的红外偏振特性研究,红外与毫米波学报),2014,33(5):507-514.

陈伟力, 孙秋菊, 王淑华, 武敬力, 陈艳, 李军伟, 许元男. 基于目标边缘轮廓偏振特征的姿态分析初探[J]. 红外与毫米波学报, 2016, 35(6): 758. CHEN Wei-Li, SUN Qiu-Ju, WANG Shu-Hua, WU Jing-Li, CHEN Yan, LI Jun-Wei, XU Yuan-Nan. Gesture analysis based on the polarization characteristics for the target edge contour[J]. Journal of Infrared and Millimeter Waves, 2016, 35(6): 758.

基于目标边缘轮廓偏振特征的姿态分析初探

关于本站 Cookie 的使用提示

全站搜索

基于目标边缘轮廓偏振特征的姿态分析初探

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索