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Proceedings Paper

Stereo imaging system for dimensional measurement
Author(s): Robert C. Chang
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Paper Abstract

3D surface geometry is a critical parameters in a part assembly process. The general technique of stereo imaging can provide non-contacting dimensional measurement by triangulation to determine coordinates of selected points on an object, from which dimensional information can be derived. A laboratory stereo imaging system employing tow CCD cameras has been developed to achieve accurate, high precision dimensional measurement. This system allows flexible camera placement and easy calibration. It resolved the stereo correlation problem by utilizing a laser scanner to mark measurement points with high-intensity, small- diameter light spots. This system can be implemented in- process for a variety of surface geometry inspections under rugged manufacturing conditions.

Paper Details

Date Published: 20 January 1997
PDF: 8 pages
Proc. SPIE 2909, Three-Dimensional Imaging and Laser-Based Systems for Metrology and Inspection II, (20 January 1997); doi: 10.1117/12.263333
Show Author Affiliations
Robert C. Chang, Aluminum Co. of America (United States)

Published in SPIE Proceedings Vol. 2909:
Three-Dimensional Imaging and Laser-Based Systems for Metrology and Inspection II
Kevin G. Harding; Donald J. Svetkoff, Editor(s)

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