大气与环境光学学报 ›› 2010, Vol. 5 ›› Issue (3): 227-231.

• 光学遥感与图像处理 • 上一篇    下一篇

偏振相机的光学定标方案研究

陈立刚,孟凡刚,袁银麟,郑小兵   

  1. (中国科学院安徽光学精密机械研究所通用光学定标与表征技术重点实验室,安徽 合肥 230031)
  • 收稿日期:2010-03-08 发布日期:2010-05-27
  • 通讯作者: 陈立刚(1977-),男,山东德州人,博士,主要研究工作是偏振遥感。 E-mail:ligangchen@aiofm.ac.cn
  • 作者简介:陈立刚(1977-),男,山东德州人,博士,主要研究工作是偏振遥感。
  • 基金资助:

    中科院科技创新基金(CXJJ-10-S09)资助

Project of Calibration Method for Polarization Camera

CHEN Li-gang, MENG Fan-gang, YUAN Yin-lin, ZHENG Xiao-bin   

  1. (Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 23003l, China)
  • Received:2010-03-08 Online:2010-05-27

摘要:

偏振相机内部的多个光学表面会改变入射光束的偏振状态,并且改变的程度与入射光束的偏振态、视场角和方位角等因素有关。通过研究偏振光束与光学成像器件的相互作用,推导了考虑光学系统偏振效应的通用辐射模型,并基于辐射模型简要描述了目标偏振信息的反演方法及模型参数分离定标研究,给出了偏振相机的光学定标方案,确立了偏振相机输出与入射光束Stokes参量(I,Q,U)的定量关系,消除仪器自身的偏振效应,准确反演目标的偏振信息,为偏振遥感图像的定量化应用研究奠定基础。

关键词: 偏振探测, 偏振相机, 定标, 遥感技术

Abstract:

The polarization state of the incident light can be altered differently according to polarization state, viewing and azimuth angles of the incident light when it passes through the optical surfaces of the polarization camera. By studying the interaction between the incident light and the polarization camera, the radiometric model including the polarization capability is deduced. Calibration method of the radiometric model parameters and retrieval of the polarization information is introduced, and the general project of calibration for correcting the polarization phenomena of polarization camera is designed. The quantitative relation between output signal of polarization camera and Stokes parameters (I,Q,U)is given for high-accuracy polarization remote sensing, which can facilitate the quantitative application study of polarization remote sensing information.

Key words: polarization detect, polarization camera, calibration, remote sensing

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