多角度偏振成像仪鬼像校正方法
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摘要
根据多角度偏振成像仪光学系统特点,分析了仪器的鬼像分布特性,结合光学设计软件CodeV与ZEMAX确定了产生严重鬼像的光学工作面,并对实验测得的鬼像图像进行了标记.在此基础上,利用鬼像畸变与视场的关系,采用多项式拟合的方法得到仪器全视场鬼像位置和形变,并通过实测图像确定了原像和鬼像图像之间的能量衰减比,建立了仪器全视场的鬼像校正模型.最后分别对未饱和及过饱和图像进行了校正,结果表明,此校正方法可以消除至少90%的鬼像杂光.
According to the characteristics of directional polarimetric camera optical system,the ghost distribution characteristics of the instrument was analyzed.The optical working surface that could produce severe ghost images was determined through the optical design software CodeV combined with ZEMAX,and the ghost image of the experimental measurement was marked.On this basis,using the relationship between ghost image system distortion and field of view,polynomial fitting method was used to obtain the full-field ghost image position and deformation of the instrument.The energy ratio between the original image and the ghost image was determined by the measured image,and the ghost correction model of the full field of view of the instrument was established.Finally,the unsaturated and supersaturated images were corrected.The results show that the proposed correction method can eliminate at least 90% of ghost.
According to the characteristics of directional polarimetric camera optical system,the ghost distribution characteristics of the instrument was analyzed.The optical working surface that could produce severe ghost images was determined through the optical design software CodeV combined with ZEMAX,and the ghost image of the experimental measurement was marked.On this basis,using the relationship between ghost image system distortion and field of view,polynomial fitting method was used to obtain the full-field ghost image position and deformation of the instrument.The energy ratio between the original image and the ghost image was determined by the measured image,and the ghost correction model of the full field of view of the instrument was established.Finally,the unsaturated and supersaturated images were corrected.The results show that the proposed correction method can eliminate at least 90% of ghost.
引文
[1] YUAN Yu-kai.Stray light luppressing measure of opticalsystem[J].Journal of Atmospheric and Environmental Optics,2007,2(1):6-10.原育凯.光学系统杂散光的消除方法[J].大气与环境光学学报,2007,2(1):6-10.
[2] MEI Chao,ZHOU Si-zhong,ZHANG Heng-jin,et al.Method of first-order ghost-image analysis in imaging system based on code V and tracepro[J].Acta Optica Sinica,2013,33(4):0411003.梅超,周泗忠,张恒金,等.基于Code V和Tracepro的成像光学系统一阶鬼像分析方法[J].光学学报,2013,33(4):72-75.
[3] CHANG Wei-jun,GENG Hai-feng,TENG Guo-qi,et al.Primary ghost image analysis of imaging system based on CODE V and LightTools[J].Journal of Applied Optics,2017,38(2):281-284.常伟军,耿海峰,腾国奇,等.基于CODE V and LightTools的成像系统初级鬼像分析[J].应用光学,2017,38(2):281-284.
[4] AKIRA I,EIMEI O.Correction of stray light and filter scratch blurring for ASTER imagery[J].IEEE Transactions on Geoscience and Remote Senssing,2005,43(12):2763-2768.
[5] BRUEGGE C J,CHRIEN N L,ANDO R R,et al.Early validation of the multi-angle imaging spectro radiometer(MISR)radiometric scale[J].IEEE Transactions on Geoscience and Remote Senssing,2002,40(7):1477-1492.
[6] BARNES R A,EPLEE R E,SCHMIDT G M,et al.Calibration of sea WiFS.I.direct techniques[J].Applied Optics,2001,40(36):6682-6700.
[7] LAHERRERJ M,POUTIER L,BRET-DIBAT T,et al.Polder on-ground stray light analysis calibration and correction[C].SPIE,1997,3221:132-140.
[8] GUO Bang-hui,WANG Jian,HUANG Jian-bo,et al.Design of tripleband optical imaging system and analysis of ghost image[J].Acta Photonica Sinica,2014,43(1):0111003.郭帮辉,王健,黄剑波,等.三波段光学成像系统设计及鬼像分析[J].光子学报,2014,43(1):0111003.
[9] KOVACS G,SIERKS H,NATHUES A,et al.Stray light calibration of the dawn framing camera[C].SPIE,2013,8889:888912.
[10] LIMBACHER J A,KAHN R A.MISR empirical stray light corrections in high-contrast scenes[J].Atmospheric Measurement Technique,2015,8:2927-2943.
[11] QIAN Hong-hu,MENG Bing-huan,YUAN Yin-lin,et al.Full field of view polarization effect measurement and error analysis of non-polarized channels of spaceborne directional polarimetric camera[J].Acta Physica Sinica,2017,36(2):100701.钱鸿鹄,孟炳寰,袁银麟,等.星载多角度偏振成像仪非偏通道全视场偏振效应测量及误差分析[J].物理学报,2017,36(2):100701.
[12] ZHANG Miao-miao,MENG Bing-huan,LUO Dong-gen,et al.Measurement precision verification and deviation8-2001110analysis of spaceborne directional polarimetric camera[J].Acta Optica Sinica,2018,38(8):0812004.张苗苗,孟炳寰,骆冬根,等.星载多角度偏振成像仪测量精度验证与偏差分析[J].光学学报,2018,38(8):0812004.
[13] YANG Wei-feng,HONG Jin,QIAO Yan-Li.Optical design of spaceborne directional polarization camera[J].Acta Optica Sinica,2015,35(8):0822005.杨伟锋,洪津,乔延利.星载多角度偏振成像仪光学系统设计[J].光学学报,2015,35(8):0822005.
[14] ZHANG Miao-miao,MENG Bing-huan,QIAN Hong-hu,et al.Research on correction method of stray light in directional polarimetric camera[J].Acta Optica Sinica,2017,37(11):1112003.张苗苗,孟炳寰,钱鸿鹄,等.多角度偏振成像仪杂散光校正方法研究[J].光学学报,2017,37(11):1112003.
[15] SHI Rong-bao,JI Yi-qun,ZHAO zhi-cheng,et al.Optical design and experimental verification of a reduced ghost image lens for backlight condition[J].Acta Optica Sinica,2014,34(9):0922002.石荣宝,季轶群,赵知诚,等.适用于逆光条件的消鬼像镜头光学设计与实验验证[J].光学学报,2014,34(9):0922002.
[2] MEI Chao,ZHOU Si-zhong,ZHANG Heng-jin,et al.Method of first-order ghost-image analysis in imaging system based on code V and tracepro[J].Acta Optica Sinica,2013,33(4):0411003.梅超,周泗忠,张恒金,等.基于Code V和Tracepro的成像光学系统一阶鬼像分析方法[J].光学学报,2013,33(4):72-75.
[3] CHANG Wei-jun,GENG Hai-feng,TENG Guo-qi,et al.Primary ghost image analysis of imaging system based on CODE V and LightTools[J].Journal of Applied Optics,2017,38(2):281-284.常伟军,耿海峰,腾国奇,等.基于CODE V and LightTools的成像系统初级鬼像分析[J].应用光学,2017,38(2):281-284.
[4] AKIRA I,EIMEI O.Correction of stray light and filter scratch blurring for ASTER imagery[J].IEEE Transactions on Geoscience and Remote Senssing,2005,43(12):2763-2768.
[5] BRUEGGE C J,CHRIEN N L,ANDO R R,et al.Early validation of the multi-angle imaging spectro radiometer(MISR)radiometric scale[J].IEEE Transactions on Geoscience and Remote Senssing,2002,40(7):1477-1492.
[6] BARNES R A,EPLEE R E,SCHMIDT G M,et al.Calibration of sea WiFS.I.direct techniques[J].Applied Optics,2001,40(36):6682-6700.
[7] LAHERRERJ M,POUTIER L,BRET-DIBAT T,et al.Polder on-ground stray light analysis calibration and correction[C].SPIE,1997,3221:132-140.
[8] GUO Bang-hui,WANG Jian,HUANG Jian-bo,et al.Design of tripleband optical imaging system and analysis of ghost image[J].Acta Photonica Sinica,2014,43(1):0111003.郭帮辉,王健,黄剑波,等.三波段光学成像系统设计及鬼像分析[J].光子学报,2014,43(1):0111003.
[9] KOVACS G,SIERKS H,NATHUES A,et al.Stray light calibration of the dawn framing camera[C].SPIE,2013,8889:888912.
[10] LIMBACHER J A,KAHN R A.MISR empirical stray light corrections in high-contrast scenes[J].Atmospheric Measurement Technique,2015,8:2927-2943.
[11] QIAN Hong-hu,MENG Bing-huan,YUAN Yin-lin,et al.Full field of view polarization effect measurement and error analysis of non-polarized channels of spaceborne directional polarimetric camera[J].Acta Physica Sinica,2017,36(2):100701.钱鸿鹄,孟炳寰,袁银麟,等.星载多角度偏振成像仪非偏通道全视场偏振效应测量及误差分析[J].物理学报,2017,36(2):100701.
[12] ZHANG Miao-miao,MENG Bing-huan,LUO Dong-gen,et al.Measurement precision verification and deviation8-2001110analysis of spaceborne directional polarimetric camera[J].Acta Optica Sinica,2018,38(8):0812004.张苗苗,孟炳寰,骆冬根,等.星载多角度偏振成像仪测量精度验证与偏差分析[J].光学学报,2018,38(8):0812004.
[13] YANG Wei-feng,HONG Jin,QIAO Yan-Li.Optical design of spaceborne directional polarization camera[J].Acta Optica Sinica,2015,35(8):0822005.杨伟锋,洪津,乔延利.星载多角度偏振成像仪光学系统设计[J].光学学报,2015,35(8):0822005.
[14] ZHANG Miao-miao,MENG Bing-huan,QIAN Hong-hu,et al.Research on correction method of stray light in directional polarimetric camera[J].Acta Optica Sinica,2017,37(11):1112003.张苗苗,孟炳寰,钱鸿鹄,等.多角度偏振成像仪杂散光校正方法研究[J].光学学报,2017,37(11):1112003.
[15] SHI Rong-bao,JI Yi-qun,ZHAO zhi-cheng,et al.Optical design and experimental verification of a reduced ghost image lens for backlight condition[J].Acta Optica Sinica,2014,34(9):0922002.石荣宝,季轶群,赵知诚,等.适用于逆光条件的消鬼像镜头光学设计与实验验证[J].光学学报,2014,34(9):0922002.