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Spot detection based on the Hartmann subaperture
Chen, Zhongfeng; Zhou, Luchun
2016
发表期刊Proceedings of SPIE: 8TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES
ISSN0277-786X
卷号9682页码:96820K
文章类型C
摘要For large astronomical telescope system based on adaptive optics(AO), the correcting ability of the wavefront processor in real time is the critical factor to the target observation. However, when we are observing the faint-target, it will lead to the uneven energy distribution of the spot in the Hartmann sensor, even no spots in some of the sub-apertures. However, whether to control the adaptive optical system to close loop is mainly dependent upon the distribution of spot in the microlens of Hartmann sensor, so it is necessary to detect the existence of the sub-spot in the Hartmann sub-aperture. This paper presents an improved approach based on template matching and threshold processing to detect the sub-spot, it could judge whether there is spot in sub-aperture self-adaptively, then, we provide an intelligence foundation for adaptive optical system. In this paper, not only do we give the detailed implementation of the detection algorithm, but also test it with the reality observed images. The experimental results have shown that the proposed approach in the paper could accurately detect whether there is spot in Hartmann sub-aperture.
关键词The Adaptive Optical System Hartmann-shack Wavefront Sensor Sub-spot Detection Template Matching
DOI10.1117/12.2243973
收录类别SCI ; Ei
语种英语
WOS记录号WOS:000387746500019
引用统计
文献类型期刊论文
条目标识符http://ir.ioe.ac.cn/handle/181551/8436
专题自适应光学技术研究室(八室)
作者单位Key Laboratory Adaptive Optical, Chinese Academy of Sciences, Chengdu, Sichuan, China
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GB/T 7714
Chen, Zhongfeng,Zhou, Luchun. Spot detection based on the Hartmann subaperture[J]. Proceedings of SPIE: 8TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES,2016,9682:96820K.
APA Chen, Zhongfeng,&Zhou, Luchun.(2016).Spot detection based on the Hartmann subaperture.Proceedings of SPIE: 8TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES,9682,96820K.
MLA Chen, Zhongfeng,et al."Spot detection based on the Hartmann subaperture".Proceedings of SPIE: 8TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: LARGE MIRRORS AND TELESCOPES 9682(2016):96820K.
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