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Proceedings Paper

Pixel correspondence calibration method of a 2CCD camera based on absolute phase calculation
Author(s): Zonghua Zhang; Guoquan Zheng; Shujun Huang
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Paper Abstract

This paper presents a novel calibration method to build up pixel correspondence between the IR CCD sensor and the visible CCD sensor of a 2CCD camera by using absolute phase calculation. Vertical and horizontal sinusoidal fringe patterns are projected onto a white plate surface through the visible and infrared (IR) channels of a DLP projector. The visible and IR fringe patterns are captured by the IR sensor and visible sensor respectively. Absolute phase of each pixel at IR and visible channels is calculated by using the optimum three-fringe number selection method. The precise pixel relationship between the two channels can be determined by the obtained absolute phase data. Experimental results show the effectiveness and validity of the proposed 2CCD calibration method. Due to using continuous phase information, this method can accurately give pixel-to-pixel correspondence.

Paper Details

Date Published: 13 November 2014
PDF: 10 pages
Proc. SPIE 9276, Optical Metrology and Inspection for Industrial Applications III, 927604 (13 November 2014); doi: 10.1117/12.2072832
Show Author Affiliations
Zonghua Zhang, Hebei Univ. of Technology (China)
Guoquan Zheng, Hebei Univ. of Technology (China)
Shujun Huang, Hebei Univ of Technology (China)

Published in SPIE Proceedings Vol. 9276:
Optical Metrology and Inspection for Industrial Applications III
Sen Han; Toru Yoshizawa; Song Zhang, Editor(s)

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