A Contactless, Laser-Triangulation Based 3-D Measuring System For High-Speed Inspection of Glass Vessels
Stephan Rupp, Christian Winter, Henry-Éric Spinnler · 2005
Abstract:- In the scope of quality inspection for glass vessels, we introduce a novel method to automatically evaluate 3-D range data acquired by a sheet-of-light sensor for the purpose of detecting discrepancies in the bottom measures of transparent vessels. We apply a histogram-based segmentation of the bottom’s point clouds to automatically derive parameters for the classification of the inspected object. The major benefit is the high inspection speed meeting the requirements of 100 % inspection in production lines running at a speed of three to ten bottles per second.