Active triangulation-based method for fast 3D industrial measurement

L. Thieling; Walter Ameling

doi:10.1117/12.169863

1 March 1994 Active triangulation-based method for fast 3D industrial measurement

L. Thieling, Walter Ameling

Proceedings Volume 2252, Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics; (1994) https://doi.org/10.1117/12.169863
Event: Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics, 1993, Zurich, Switzerland

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.

Citation Download Citation

L. Thieling and Walter Ameling "Active triangulation-based method for fast 3D industrial measurement", Proc. SPIE 2252, Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics, (1 March 1994); https://doi.org/10.1117/12.169863

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