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Article: A stratified self-calibration method for circular motion in spite of varying intrinsic parameters

TitleA stratified self-calibration method for circular motion in spite of varying intrinsic parameters
Authors
KeywordsAffine reconstruction
Circular motion
Metric reconstruction
Plane at infinity
Self-calibration
Varying intrinsic parameters
Issue Date2008
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/imavis
Citation
Image And Vision Computing, 2008, v. 26 n. 6, p. 731-739 How to Cite?
AbstractSelf-calibration for imaging sensors is essential to many computer vision applications. In this paper, a new stratified self-calibration method is proposed for a camera undergoing circular motion with varying intrinsic parameters. It is shown that the plane at infinity in a projective frame can be identified by (i) known rotation angles between any two views and (ii) square pixel assumption of the camera. Once the plane at infinity is identified, the calibration matrices of the cameras and the upgrade to a metric reconstruction can be readily obtained. The proposed method is rather flexible in that it allows not only the focal length but also the principal point to vary from image to image. Experimental results for both synthetic data and real images are provided to show the performance of the proposed method. © 2008 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/74091
ISSN
2015 Impact Factor: 1.766
2015 SCImago Journal Rankings: 1.700
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Yen_HK
dc.contributor.authorHung, YSen_HK
dc.contributor.authorLee, Sen_HK
dc.date.accessioned2010-09-06T06:57:43Z-
dc.date.available2010-09-06T06:57:43Z-
dc.date.issued2008en_HK
dc.identifier.citationImage And Vision Computing, 2008, v. 26 n. 6, p. 731-739en_HK
dc.identifier.issn0262-8856en_HK
dc.identifier.urihttp://hdl.handle.net/10722/74091-
dc.description.abstractSelf-calibration for imaging sensors is essential to many computer vision applications. In this paper, a new stratified self-calibration method is proposed for a camera undergoing circular motion with varying intrinsic parameters. It is shown that the plane at infinity in a projective frame can be identified by (i) known rotation angles between any two views and (ii) square pixel assumption of the camera. Once the plane at infinity is identified, the calibration matrices of the cameras and the upgrade to a metric reconstruction can be readily obtained. The proposed method is rather flexible in that it allows not only the focal length but also the principal point to vary from image to image. Experimental results for both synthetic data and real images are provided to show the performance of the proposed method. © 2008 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/imavisen_HK
dc.relation.ispartofImage and Vision Computingen_HK
dc.rightsImage and Vision Computing. Copyright © Elsevier BV.en_HK
dc.subjectAffine reconstructionen_HK
dc.subjectCircular motionen_HK
dc.subjectMetric reconstructionen_HK
dc.subjectPlane at infinityen_HK
dc.subjectSelf-calibrationen_HK
dc.subjectVarying intrinsic parametersen_HK
dc.titleA stratified self-calibration method for circular motion in spite of varying intrinsic parametersen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0262-8856&volume=26 No 6&spage=731&epage=739&date=2008&atitle=A+stratified+self-calibration+method+for+circular+motion+in+spite+of+varying+intrinsic+parametersen_HK
dc.identifier.emailHung, YS:yshung@eee.hku.hken_HK
dc.identifier.authorityHung, YS=rp00220en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.imavis.2007.12.007en_HK
dc.identifier.scopuseid_2-s2.0-40949125114en_HK
dc.identifier.hkuros149096en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-40949125114&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume26en_HK
dc.identifier.issue6en_HK
dc.identifier.spage731en_HK
dc.identifier.epage739en_HK
dc.identifier.isiWOS:000255887900001-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLi, Y=7502078370en_HK
dc.identifier.scopusauthoridHung, YS=8091656200en_HK
dc.identifier.scopusauthoridLee, S=7601402085en_HK

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