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https://hdl.handle.net/10316/27276
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. | URI: | https://hdl.handle.net/10316/27276 | 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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File | Description | Size | Format | |
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Calibration of mirror position and extrinsic parameters.pdf | 896.35 kB | Adobe PDF | View/Open |
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