Close range dimensional measurement using grating techniques and natural edges

Klaus Andresen; Z. Lei; K. Hentrich

doi:10.1117/12.194351

15 November 1994 Close-range dimensional measurement using grating techniques and natural edges

Klaus Andresen, Z. Lei, K. Hentrich

Proceedings Volume 2248, Optical Measurements and Sensors for the Process Industries; (1994) https://doi.org/10.1117/12.194351
Event: Optics for Productivity in Manufacturing, 1994, Frankfurt, Germany

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.

Citation Download Citation

Klaus Andresen, Z. Lei, and K. Hentrich "Close-range dimensional measurement using grating techniques and natural edges", Proc. SPIE 2248, Optical Measurements and Sensors for the Process Industries, (15 November 1994); https://doi.org/10.1117/12.194351

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