Calibration of a 3D data acquistion system using the ratio of two intensity images

Jorge A. Silva; Aurelio J. C. Campilho; J. C. Marques dos Santos

doi:10.1117/12.162134

22 October 1993 Calibration of a 3D data acquistion system using the ratio of two intensity images

Jorge A. Silva, Aurelio J. C. Campilho, J. C. Marques dos Santos

Proceedings Volume 2067, Videometrics II; (1993) https://doi.org/10.1117/12.162134
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

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.

Citation Download Citation

Jorge A. Silva, Aurelio J. C. Campilho, and J. C. Marques dos Santos "Calibration of a 3D data acquistion system using the ratio of two intensity images", Proc. SPIE 2067, Videometrics II, (22 October 1993); https://doi.org/10.1117/12.162134

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