Establishment of image model for on-board space camera

	Establishment of image model for on-board space camera
	Li, X.-S.; J.-Y. Ren; J.-W. Ren; X.-X. Zhang and C.-X. Xue
	2015
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	23 期号:7 页码:1852-1858
摘要	The concept of on-board imaging model for a space camera was proposed, and the method to establish the imaging model of the space camera was researched. On the basis of the solar elevation angle and the reflection of earth surface, the radiance at the entrance pupil of space camera was calculated using the MODTRAN software. Then the radiometric calibration data were analyzed and the responsibility, radiance range and the integration time for each image model were acquired. Meanwhile, the relation between the responsibility and the integration time was obtained for scroll image and standard image and the radiance ranges at each image model was calculated at every scroll angle. Finally, according to the radiance range at each image model and the maximum objective at sensor radiance from the earth surface, an imaging model table was established under the scroll angle and solar elevation angle. When the space camera worked on board, one could choose a corresponding imaging model by looking up the table and could achieve better images. The method has been used in space camera imaging for several times, high quality remote images have been acquired. The image satisfaction improves from 65% to 99.9%. According to the method, the remote image's quality has been improved obviously. The image not only includes all scene information, but also has abundant levels. , 2015, Chinese Academy of Sciences. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56057
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li, X.-S.,J.-Y. Ren,J.-W. Ren,et al. Establishment of image model for on-board space camera[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23(7):1852-1858.
APA	Li, X.-S.,J.-Y. Ren,J.-W. Ren,&X.-X. Zhang and C.-X. Xue.(2015).Establishment of image model for on-board space camera.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23(7),1852-1858.
MLA	Li, X.-S.,et al."Establishment of image model for on-board space camera".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23.7(2015):1852-1858.

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