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Automatic processing method for astronomical CCD images
Li BH(李彬华); Yang L(杨磊); Mao W(冒蔚); Li, BH (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming, Peoples R China.
会议录名称PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) - ASTRONOMICAL DATA ANALYSIS II
2002
卷号4847
页码305-312
产权排序第1完成单位
收录类别EI ; CPCI
会议名称Conference on Astronomical Data Analysis II
会议日期2002-08-27
会议地点WAIKOLOA, HI, United states
关键词Ccd Image Processing Astrometry
摘要Since several hundreds of CCD images are obtained with the CCD camera in the Lower Latitude Meridian Circle (LIMC) every observational night, it is essential to adopt an automatic processing method to find the initial position of each object in these images, to center the object detected and to calculate its magnitude. In this paper several existing automatic search algorithms searching for objects in astronomical CCD images are reviewed. Our automatic searching algorithm is described, which include 5 steps: background calculating, filtering, object detecting and identifying, and defect eliminating. Then several existing two-dimensional centering algorithms are also reviewed, and our modified two-dimensional moment algorithm and an empirical formula for the centering threshold are presented. An algorithm for determining the magnitudes of objects is also presented in the paper. All these algorithms are programmed with VC++ programming language. In the last our method is tested with CCD images from the 1m RCC telescope in Yunnan Observatory, and some primary results are also given.
语种英语
学科领域Astronomy & Astrophysics ; Computer Science ; Optics ; Imaging Science & Photographic Technology ; Spectroscopy
出版者SPIE-INT SOC OPTICAL ENGINEERING
出版地1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN号0-8194-4626-2
ISSN号0277-786X
URL查看原文
归档日期2003-10-27
文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6739
专题天体测量及应用研究组
通讯作者Li, BH (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming, Peoples R China.
推荐引用方式
GB/T 7714
Li BH,Yang L,Mao W,et al. Automatic processing method for astronomical CCD images[C]. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2002:305-312.
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