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Proceedings Paper

Close range dimensional measurement using grating techniques and natural edges
Author(s): Klaus Andresen; Z. Lei; K. Hentrich
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Paper Abstract

Dimensional measurement and deformation measurement is performed using a photogrammetric setup with 3 CCD-video cameras. Using the images of a parallel shifted reference cross grating the orientation of the cameras is determined fully automatically within some minutes on a PC. Then two software packages are available for the calculation of an arbitrary deformed cross grating and for deriving elements, e.g. circles, straight lines, cylinders, in space from their edges in the images. This can be done interactively or automatically after a teach-in process. Hence the method is well suited for production and quality control.

Paper Details

Date Published: 15 November 1994
PDF: 8 pages
Proc. SPIE 2248, Optical Measurements and Sensors for the Process Industries, (15 November 1994); doi: 10.1117/12.194351
Show Author Affiliations
Klaus Andresen, Technical Univ. of Braunschweig (Germany)
Z. Lei, Technical Univ. of Braunschweig (Germany)
K. Hentrich, Technical Univ. of Braunschweig (Germany)

Published in SPIE Proceedings Vol. 2248:
Optical Measurements and Sensors for the Process Industries
Christophe Gorecki; Richard W. T. Preater, Editor(s)

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