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A Robust Detection Method of Control Points for Calibration and Measurement With Defocused Images
Ding, Wendong1,2; Liu, Xilong1,2; Xu, De1,2; Zhang, Dapeng1,2; Zhang, Zhengtao1,2
Source PublicationIEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
2017-10-01
Volume66Issue:10Pages:2725-2735
SubtypeArticle
AbstractThis paper presents a detection method of control points for the camera calibration and measurement applications, which is robust to defocus. Our method is based on a ground truth, which we call ridge invariance. That is, the positions of broad-brush lines' ridge lines are invariant to defocus blur. First, the ridge invariance is deduced in theory. Then, the methods for ridge point's detection including defocus degree estimation and salience enhancement are deduced. In calibration and measurement experiments, new marks are designed and control points are determined at intersects of the ridge curves. Experiments show that our method can obtain precise calibration and measurement results with images in a large defocus amount range. In the effective defocus amount range, the accuracy of the proposed method almost keeps unchanged to the best values. The proposed method has approximated the same performance as conventional methods at good focus values.
KeywordCamera Calibration Control Point Detection Defocused Image Point Spread Function Vision Measurement
WOS HeadingsScience & Technology ; Technology
DOI10.1109/TIM.2017.2709561
WOS KeywordDIRECT LINEAR TRANSFORMATION ; LENS CAMERA CALIBRATION ; SINGLE IMAGE ; ACCURACY ; BLUR ; INSTRUMENT
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(61503376 ; special fund of Jiangsu Province for the transformation of scientific and technological achievements(BA2015144) ; 61227804 ; 61303177 ; 61421004)
WOS Research AreaEngineering ; Instruments & Instrumentation
WOS SubjectEngineering, Electrical & Electronic ; Instruments & Instrumentation
WOS IDWOS:000411025400023
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/19812
Collection精密感知与控制研究中心_精密感知与控制
Affiliation1.Chinese Acad Sci, Inst Automat, Res Ctr Precis Sensing & Control, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 101408, Peoples R China
First Author AffilicationChinese Acad Sci, Inst Automat, Res Ctr Precis Sensing & Control, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Ding, Wendong,Liu, Xilong,Xu, De,et al. A Robust Detection Method of Control Points for Calibration and Measurement With Defocused Images[J]. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,2017,66(10):2725-2735.
APA Ding, Wendong,Liu, Xilong,Xu, De,Zhang, Dapeng,&Zhang, Zhengtao.(2017).A Robust Detection Method of Control Points for Calibration and Measurement With Defocused Images.IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,66(10),2725-2735.
MLA Ding, Wendong,et al."A Robust Detection Method of Control Points for Calibration and Measurement With Defocused Images".IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 66.10(2017):2725-2735.
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