Rapid star extraction and high accuracy location in star image

OPT OpenIR > 空间光学技术研究室

	Rapid star extraction and high accuracy location in star image
	Xi, Jiangbo; Wen, Desheng; Song, Zongxi; Gao, Wei; Yao, Dalei; Yang, Shaodong
	2015-05-20
发表期刊	Journal of Information and Computational Science
卷号	12 期号:8 页码:2929-2937
摘要	The pre-processing method of star image, star extracting and high accuracy star location method are studied to improve the accuracy of star location and reduce the amount of calculation during processing. The background and noise of CCD (Charge Coupled Device) image are analyzed, and pre-processing is performed: correct the light and dead point, estimate and remove the background and the phenomenon of non-uniformity with local mean iteration method. The improved cross projection method is proposed to extract the stars in the image and the calculation amount is reduced because the scanning and marking process is not needed compared with the traditional connected domain method. And the stretching of the star extracting range in horizontal or vertical direction is solved. The star location method with phase transfer function is proposed using the phase shift property of Fourier Transform. Experiment results show that the accuracy of our method is 0.0022 pixels (without noise), which is much higher than the traditional Calculation Method (COM) and our method can immune the noise very well. The experiment is also performed to the simulated star image and the results show that all stars in the image can be located precisely with our methods. Copyright © 2015 Binary Information Press.
收录类别	EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.opt.ac.cn/handle/181661/27309
专题	空间光学技术研究室
推荐引用方式 GB/T 7714	Xi, Jiangbo,Wen, Desheng,Song, Zongxi,et al. Rapid star extraction and high accuracy location in star image[J]. Journal of Information and Computational Science,2015,12(8):2929-2937.
APA	Xi, Jiangbo,Wen, Desheng,Song, Zongxi,Gao, Wei,Yao, Dalei,&Yang, Shaodong.(2015).Rapid star extraction and high accuracy location in star image.Journal of Information and Computational Science,12(8),2929-2937.
MLA	Xi, Jiangbo,et al."Rapid star extraction and high accuracy location in star image".Journal of Information and Computational Science 12.8(2015):2929-2937.

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