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Coplanar circles, quasi-affine invariance and calibration
Wu, YH; Li, XJ; Wu, FC; Hu, ZY
AbstractWe define the lines associated with two coplanar circles, and give the distributions of any two coplanar circles and their associated lines. Further we prove that the distribution of two coplanar circles with no real intersection and their associated lines is a quasi-affine invariance. Then the results are applied to calibrating a camera. The calibration method has the advantages: (1) it is based on conic fitting; (2) it does not need any matching. Experiments with two separate circles validate our quasi-affine invariance and show that the estimated camera intrinsic parameters are as good as those obtained by Zhang's (2000) method. (c) 2005 Elsevier B.V. All rights reserved.
KeywordAssociated Lines With Two Coplanar Circles Projective Invariance Quasi-affine Invariance Circular Points Camera Calibration
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaComputer Science ; Engineering ; Optics
WOS SubjectComputer Science, Artificial Intelligence ; Computer Science, Software Engineering ; Computer Science, Theory & Methods ; Engineering, Electrical & Electronic ; Optics
WOS IDWOS:000238043500001
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Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
AffiliationChinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Wu, YH,Li, XJ,Wu, FC,et al. Coplanar circles, quasi-affine invariance and calibration[J]. IMAGE AND VISION COMPUTING,2006,24(4):319-326.
APA Wu, YH,Li, XJ,Wu, FC,&Hu, ZY.(2006).Coplanar circles, quasi-affine invariance and calibration.IMAGE AND VISION COMPUTING,24(4),319-326.
MLA Wu, YH,et al."Coplanar circles, quasi-affine invariance and calibration".IMAGE AND VISION COMPUTING 24.4(2006):319-326.
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