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Simple and accurate empirical absolute volume calibration of a multi-sensor fringe projection system

Gdeisat, M and Qudeisat, M and AlSa'd, M and Burton, DR and Lilley, F and Ammous, MMM (2016) Simple and accurate empirical absolute volume calibration of a multi-sensor fringe projection system. OPTICS AND LASERS IN ENGINEERING, 80. pp. 32-44. ISSN 0143-8166

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Abstract

This paper suggests a novel absolute empirical calibration method for a multi-sensor fringe projection system. The optical setup of the projector-camera sensor can be arbitrary. The term absolute calibration here means that the centre of the three dimensional coordinates in the resultant calibrated volume coincides with a preset centre to the three-dimensional real-world coordinate system. The use of a zero-phase fringe marking spot is proposed to increase depth calibration accuracy, where the spot centre is determined with sub-pixel accuracy. Also, a new method is proposed for transversal calibration. Depth and transversal calibration methods have been tested using both single sensor and three-sensor fringe projection systems. The standard deviation of the error produced by this system is 0.25 mm. The calibrated volume produced by this method is 400 mm×400 mm×140 mm

Item Type: Article
Uncontrolled Keywords: 0205 Optical Physics
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions: General Engineering Research Institute
Publisher: Elsevier
Related URLs:
Date Deposited: 21 Mar 2016 11:58
Last Modified: 12 Jan 2017 00:50
DOI or Identification number: 10.1016/j.optlaseng.2015.12.013
URI: http://researchonline.ljmu.ac.uk/id/eprint/3304

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