Automated 3D measurement with the DCS200 digital camera

Frank A. Van den Heuvel

doi:10.1117/12.169879

1 March 1994 Automated 3D measurement with the DCS200 digital camera

Frank A. Van den Heuvel

Proceedings Volume 2252, Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics; (1994) https://doi.org/10.1117/12.169879
Event: Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics, 1993, Zurich, Switzerland

Abstract

A digital photogrammetric system for automated 3D coordinate measurement in a production environment has been developed. For the image acquisition the Kodak DCS200 digital camera is used. This camera is based on a standard 35-mm camera. The results of the radiometric and geometric calibration of the DCS200 camera show the potential of this camera for photogrammetric applications. The software part of the system performs the detection, identification, and measurement of artificial targets present in digital images. These artificial targets are designed for automatic detection in images of a complex scene. For the identification of the targets a circular bar code is read by the image processing software. The least squares template matching method is implemented for the target image measurement. A precision better than 2% of a pixel was obtained for the target location. The 3D coordinate computation is performed by Geodelta's bundle adjustment package BINAER. It includes extensive statistical testing to assess the accuracy of the results. Tests with the DCS200 camera show a repeatability of 18 micrometer standard deviation on a test field 60 X 50 X 30 centimeter. The achieved precision is in the order of 2 (DOT) 10^-5.

Citation Download Citation

Frank A. Van den Heuvel "Automated 3D measurement with the DCS200 digital camera", Proc. SPIE 2252, Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics, (1 March 1994); https://doi.org/10.1117/12.169879

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