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Proceedings Paper

Active triangulation-based method for fast 3D industrial measurement
Author(s): L. Thieling; Walter Ameling
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Paper Abstract

This paper describes a new method for fast 3D measurement based on active triangulation. In this approach the scene is inspected by a typical CCD camera and illuminated with a single structured light consisting of a multiple circular formed pattern. Data acquisition with video frame rate is guaranteed by the use of special picture preprocessing hardware and the reading of off-line computable table entries that represent 3D information. Based on a high-accuracy camera model and subpixel resolution this new method performs 3D measurement with an average accuracy of 2*10-4 relative to depth of field. Therefore this method is suitable for real-time industrial applications.

Paper Details

Date Published: 1 March 1994
PDF: 8 pages
Proc. SPIE 2252, Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics, (1 March 1994); doi: 10.1117/12.169863
Show Author Affiliations
L. Thieling, Technical Univ. Aachen (Germany)
Walter Ameling, Technical Univ. Aachen (Germany)


Published in SPIE Proceedings Vol. 2252:
Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics
Armin Gruen; Heribert Kahmen, Editor(s)

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