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Proceedings Paper

Calibration of a 3D data acquistion system using the ratio of two intensity images
Author(s): Jorge A. Silva; Aurelio J. C. Campilho; J. C. Marques dos Santos
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Paper Abstract

The calibration steps of a 3-D data acquisition system based on the ratio of two intensity images are described. This is a triangulation-based structural light technique in which a multiple of projected light planes are identified by the ratio of two measured intensities. The calibration scheme can be divided in two main steps, which are described in detail: camera calibration and light plane calibration. Camera calibration consists of the determination of some geometric camera parameters that allow the determination of the line of sight of each pixel. Light plane calibration consists of the determination of the correspondence between the measured ratios and the position of the light planes. Some preliminary operations which ease the calculation of depth are also described. System accuracy is evaluated and results on test scenes are presented.

Paper Details

Date Published: 22 October 1993
PDF: 11 pages
Proc. SPIE 2067, Videometrics II, (22 October 1993); doi: 10.1117/12.162134
Show Author Affiliations
Jorge A. Silva, Univ. do Porto (Portugal)
Aurelio J. C. Campilho, Univ. do Porto (Portugal)
J. C. Marques dos Santos, Univ. do Porto (Portugal)

Published in SPIE Proceedings Vol. 2067:
Videometrics II
Sabry F. El-Hakim, Editor(s)

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