On-Orbit Autonomous Geometric Calibration of Directional Polarimetric Camera

doi:10.3390/rs14184548

	On-Orbit Autonomous Geometric Calibration of Directional Polarimetric Camera
	Xiang, Guangfeng 1,2,3; Meng, Binghuan 1,3; Tu, Bihai 1,3; Lei, Xuefeng 1,2,3; Sheng, Tingrui 1,2,3; Han, Lin 1,3; Luo, Donggen 1,3; Hong, Jin 1,3
刊名	REMOTE SENSING
	2022-09-01
卷号	14
关键词	geometric calibration directional polarimetric camera geolocation accuracy image registration remote sensing
DOI	10.3390/rs14184548
通讯作者	Meng, Binghuan(bhmeng@aiofm.ac.cn)
英文摘要	The Directional Polarimetric Camera (DPC) carried by the Chinese GaoFen-5-02 (GF-5-02) satellite has the ability for multiangle, multispectral, and polarization detection and will play an important role in the inversion of atmospheric aerosol and cloud characteristics. To ensure the validity of the DPC on-orbit multiangle and multispectral polarization data, high-precision image registration and geolocation are vital. High-precision geometric model parameters are a prerequisite for on-orbit image registration and geolocation. Therefore, on the basis of the multiangle imaging characteristics of DPC, an on-orbit autonomous geometric calibration method without ground reference data is proposed. The method includes three steps: (1) preprocessing the original image of the DPC and the satellite attitude and orbit parameters; (2) scale-invariant feature transform (SIFT) algorithm to match homologous points between multiangle images; (3) optimization of geometric model parameters on-orbit using least square theory. To verify the effectiveness of the on-orbit autonomous geometric calibration method, the image registration performance and relative geolocation accuracy before and after DPC on-orbit geometric calibration were evaluated and analyzed using the SIFT algorithm and the coastline crossing method (CCM). The results show that the on-orbit autonomous geometric calibration effectively improves the DPC image registration and relative geolocation accuracy. After on-orbit calibration, the multiangle image registration accuracy is better than 1.530 km, the multispectral image registration accuracy is better than 0.650 km, and the relative geolocation accuracy is better than 1.275 km, all reaching the subpixel level (<1.7 km).
资助项目	K. C. Wong Education Foundation International team of Advanced Polarization Remote Sensing Technology and Application[GJTD-2018-15]
WOS关键词	SELF-CALIBRATION ; FLIGHT CALIBRATION ; AEROSOL ; ACCURACY ; IMAGER ; MODEL
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	MDPI
WOS记录号	WOS:000859549600001
资助机构	K. C. Wong Education Foundation International team of Advanced Polarization Remote Sensing Technology and Application
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129199]
专题	中国科学院合肥物质科学研究院
通讯作者	Meng, Binghuan
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Key Lab Opt Calibrat & Characterizat, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xiang, Guangfeng,Meng, Binghuan,Tu, Bihai,et al. On-Orbit Autonomous Geometric Calibration of Directional Polarimetric Camera[J]. REMOTE SENSING,2022,14.
APA	Xiang, Guangfeng.,Meng, Binghuan.,Tu, Bihai.,Lei, Xuefeng.,Sheng, Tingrui.,...&Hong, Jin.(2022).On-Orbit Autonomous Geometric Calibration of Directional Polarimetric Camera.REMOTE SENSING,14.
MLA	Xiang, Guangfeng,et al."On-Orbit Autonomous Geometric Calibration of Directional Polarimetric Camera".REMOTE SENSING 14(2022).