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Automatic processing method for astronomical CCD images
Li BH(李彬华)1,2; Yang L(杨磊)1; Mao W(冒蔚)1
Source PublicationPROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) - ASTRONOMICAL DATA ANALYSIS II
2002
Volume4847
Pages305-312
DOI10.1117/12.460391
Author of SourceStarck, JL; Murtagh, FD
Contribution Rank第1完成单位
Indexed ByEI ; CPCI
Conference NameConference on Astronomical Data Analysis II
Conference Date2002-08-27
Conference PlaceWAIKOLOA, HI, United states
Conference SponsorSPIE; Int Commiss Opt; Amer Astron Soc; European SO Observ; Int Astron Union
KeywordCcd Image Processing Astrometry
Abstract

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.

Funding OrganizationN/A
Language英语
Subject Area天文学 ; 天文学其他学科 ; 计算机科学技术
MOST Discipline Catalogue理学 ; 理学::天文学 ; 工学 ; 工学::计算机科学与技术(可授工学、理学学位)
SubtypeProceedings Paper
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Publication Place1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
ISBN0-8194-4626-2
ISSN0277-786X
URL查看原文
Archive Date2003-10-27
WOS IDWOS:000180673000029
WOS Research AreaAstronomy & Astrophysics ; Computer Science ; Optics ; Imaging Science & Photographic Technology ; Spectroscopy
WOS SubjectAstronomy & Astrophysics ; Computer Science, Interdisciplinary Applications ; Optics ; Imaging Science & Photographic Technology ; Spectroscopy
EI Accession Number2003217474361
EI KeywordsAstronomy
EI Classification Number657.2extraterrestrial Physics And Stellar Phenomena - 714.2semiconductor Devices And Integrated Circuits - 723.2data Processing And Image Processing
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Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6739
Collection天体测量及应用研究组
Affiliation1.Yunnan Observatory, Chinese Academy of Sciences, Kunming, China
2.Kunming Univ. of Sci. and Technology, Kunming, China
Recommended Citation
GB/T 7714
Li BH,Yang L,Mao W. Automatic processing method for astronomical CCD images[C]//Starck, JL; Murtagh, FD. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2002:305-312.
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