Center of rotation automatic measurement for fan-beam CT system based on sinogram image features

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	Center of rotation automatic measurement for fan-beam CT system based on sinogram image features
	Yang, Min 1; Pan, Jing 2; Zhang, Jianhai 3; Song, Sung-Jin 3; Meng, Fanyong 4; Li, Xingdong 5; Wei, Dongbo 1
刊名	NEUROCOMPUTING
	2013-11-23
卷号	120 期号:0 页码:250-257
关键词	Sinogram features Computed tomography Center of rotation Image cross correlation
ISSN号	0925-2312
英文摘要	For fan-beam X-ray CT system, projection center of rotation (COR) is one of the most important parameters which should be strictly controlled with high precision to ensure the accuracy of the image reconstruction. In our research, a novel method is proposed to locate CUR for fan-beam CT system based on sinogram features. In this method, getting a data set with regular symmetric shape by averaging the original sinogram along the direction of column, and another data set by flipping the averaged data along the direction of row, the cross correlation operation is applied to these two data sets and finally the position of CUR is determined by locating the peak values of the cross correlation function. In our proposed method, only the sinogram of the scanned slice is used for locating CUR based on the image cross correlation without the calibration sample. The experimental results prove that it is easy to implement with high accuracy and anti-noise ability. (c) 2013 Published by Elsevier B.V.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Computer Science, Artificial Intelligence
研究领域[WOS]	Computer Science
关键词[WOS]	TOMOGRAPHY
收录类别	SCI
语种	英语
WOS记录号	WOS:000324847100026
公开日期	2015-05-27
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/13393]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Beijing Univ Aeronaut & Astronaut, Sch Mech Engn & Automat, Beijing 100191, Peoples R China 2.Tianjin Univ Technol & Educ, Sch Elect Engn, Tianjin 300222, Peoples R China 3.Sungkyunkwan Univ, Sch Mech Engn, Suwon 440746, South Korea 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 5.Natl Inst Metrol, Beijing 100013, Peoples R China
推荐引用方式 GB/T 7714	Yang, Min,Pan, Jing,Zhang, Jianhai,et al. Center of rotation automatic measurement for fan-beam CT system based on sinogram image features[J]. NEUROCOMPUTING,2013,120(0):250-257.
APA	Yang, Min.,Pan, Jing.,Zhang, Jianhai.,Song, Sung-Jin.,Meng, Fanyong.,...&Wei, Dongbo.(2013).Center of rotation automatic measurement for fan-beam CT system based on sinogram image features.NEUROCOMPUTING,120(0),250-257.
MLA	Yang, Min,et al."Center of rotation automatic measurement for fan-beam CT system based on sinogram image features".NEUROCOMPUTING 120.0(2013):250-257.