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题名:
Lunar-edge based on-orbit modulation transfer function (MTF) measurement
作者: Cheng, Ying1,2; Yi, Hongwei1; Liu, Xinlong1
出版日期: 2017
会议名称: Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017
会议日期: 2017-06-04
会议地点: Beijing, China
DOI: 10.1117/12.2285836
英文摘要:

Modulation transfer function (MTF) is an important parameter for image quality evaluation of on-orbit optical image systems. Various methods have been proposed to determine the MTF of an imaging system which are based on images containing point, pulse and edge features. In this paper, the edge of the moon can be used as a high contrast target to measure on-orbit MTF of image systems based on knife-edge methods. The proposed method is an extension of the ISO 12233 Slanted-edge Spatial Frequency Response test, except that the shape of the edge is a circular arc instead of a straight line. In order to get more accurate edge locations and then obtain a more authentic edge spread function (ESF), we choose circular fitting method based on least square to fit lunar edge in sub-pixel edge detection process. At last, simulation results show that the MTF value at Nyquist frequency calculated using our lunar edge method is reliable and accurate with error less than 2% comparing with theoretical MTF value. © 2017 SPIE.

收录类别: EI ; ISTP
会议录: AOPC 2017: Space Optics and Earth Imaging and Space Navigation
会议录出版者: SPIE
语种: 英语
作者部门: 空间光学应用研究室
卷号: 10463
产权排序: 1
ISBN号: 9781510614079
ISSN号: 0277786X
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.opt.ac.cn/handle/181661/29874
Appears in Collections:空间光学应用研究室_会议论文

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作者单位: 1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No.17, Xinxi Road, Xi'an, 710119, China
2.University of Chinese, Academy of Sciences, Jingjia Road, Beijing, 100049, China

Recommended Citation:
Cheng, Ying,Yi, Hongwei,Liu, Xinlong. Lunar-edge based on-orbit modulation transfer function (MTF) measurement[C]. 见:Applied Optics and Photonics China: Space Optics and Earth Imaging and Space Navigation, AOPC 2017. Beijing, China. 2017-06-04.
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文件名: Lunar-edge based on-orbit modulation transfer function (MTF) measurement.pdf
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