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Title: Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems
Authors: Perdigoto, Luis 
Araujo, Helder 
Keywords: Non-central catadioptric vision systems; Calibration; Axial symmetric mirrors
Issue Date: Aug-2013
Publisher: Elsevier
Citation: PERDIGOTO, Luis; ARAUJO, Helder - Calibration of mirror position and extrinsic parameters in axial non-central catadioptric systems. "Computer Vision and Image Understanding". ISSN 1077-3142. Vol. 117 Nº. 8 (2013) p. 909-921
Serial title, monograph or event: Computer Vision and Image Understanding
Volume: 117
Issue: 8
Abstract: We propose a novel calibration method for catadioptric systems made up of an axial symmetrical mirror and a pinhole camera with its optical center located at the mirror axis. The calibration estimates the relative camera/mirror position and the extrinsic rotation and translation w.r.t. the world frame. The procedure requires a single image of a (possibly planar) calibration object. We show how most of the calibration parameters can be estimated using linear methods (Direct-Linear-Transformation algorithm) and cross-ratio. Two remaining parameters are obtained by using non-linear optimization. We present experimental results on simulated and real images.
ISSN: 1077-3142
DOI: 10.1016/j.cviu.2013.04.001
Rights: openAccess
Appears in Collections:I&D ISR - Artigos em Revistas Internacionais
FCTUC Eng.Electrotécnica - Artigos em Revistas Internacionais

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