An automatic approach for camera calibration from vanishing points

Grammatikopoulos, L; Karras, G; Petsa, E

dc.contributor.author	Grammatikopoulos, L	en
dc.contributor.author	Karras, G	en
dc.contributor.author	Petsa, E	en
dc.date.accessioned	2014-03-01T01:25:53Z
dc.date.available	2014-03-01T01:25:53Z
dc.date.issued	2007	en
dc.identifier.issn	0924-2716	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17795
dc.subject	Automation	en
dc.subject	Calibration	en
dc.subject	Distortion	en
dc.subject	Edge	en
dc.subject	Extraction	en
dc.subject.classification	Geography, Physical	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.classification	Remote Sensing	en
dc.subject.classification	Imaging Science & Photographic Technology	en
dc.subject.other	Automation	en
dc.subject.other	Calibration	en
dc.subject.other	Clustering algorithms	en
dc.subject.other	Computer vision	en
dc.subject.other	Human computer interaction	en
dc.subject.other	Photogrammetry	en
dc.subject.other	Remote sensing	en
dc.subject.other	Automatic estimation	en
dc.subject.other	Bundle adjustment	en
dc.subject.other	Camera parameters	en
dc.subject.other	Image mode	en
dc.subject.other	Image points	en
dc.subject.other	Camera lenses	en
dc.subject.other	automation	en
dc.subject.other	calibration	en
dc.subject.other	computer vision	en
dc.subject.other	photogrammetry	en
dc.title	An automatic approach for camera calibration from vanishing points	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.isprsjprs.2007.02.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.isprsjprs.2007.02.002	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Camera calibration is a fundamental task in photogrammetry and computer vision. This paper presents an approach for the automatic estimation of interior orientation from images with three vanishing points of orthogonal directions. Extraction of image line segments and their clustering into groups corresponding to three dominant vanishing points are performed without any human interaction. Camera parameters (camera constant, location of principal point, and two coefficients of radial lens distortion) and the vanishing points are estimated in a one-step adjustment of all participating image points. The approach may function in a single image mode, but is also capable of handling input from independent images (i.e. images not necessarily of the same object) with three and/or two vanishing points in a common solution. The reported experimental tests indicate that, within certain limits, results from single images compare satisfactorily with those from multi-image bundle adjustment. (C) 2007 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS). Published by Elsevier B.V All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	ISPRS Journal of Photogrammetry and Remote Sensing	en
dc.identifier.doi	10.1016/j.isprsjprs.2007.02.002	en
dc.identifier.isi	ISI:000246822400006	en
dc.identifier.volume	62	en
dc.identifier.issue	1	en
dc.identifier.spage	64	en
dc.identifier.epage	76	en