This paper presents the development of a close-range photogrammetric sensor for vision-based inspection of aeronautic parts. The sensor design is based on two active stereo sets each comprising a camera and a laser projector. The use of the active stereo system allows to robustly estimate plane parameters and derived measurands such as wall thickness of highly reflective surfaces even under partial occlusion. A geometric model for surfaces projected by the laser source is presented which allows for accurate calibration of standard laser projectors and line lenses. Measurements performed with the calibrated sensor show the applicability of the proposed sensor design to vision-based inspection of aeronautic parts.
Vision-based surface inspection of aeronautic parts using active stereo
2007
6 Seiten, 6 Bilder, 3 Quellen
Conference paper
Storage medium
English
Automatic inspection of aeronautic components
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