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Simulation of Specular Surface Imaging Based on Computer Graphics: Application on a Vision Inspection System

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Abstract

This work aims at detecting surface defects on reflecting industrial parts. A machine vision system, performing the detection of geometric aspect surface defects, is completely described. The revealing of defects is realized by a particular lighting device. It has been carefully designed to ensure the imaging of defects. The lighting system simplifies a lot the image processing for defect segmentation and so a real-time inspection of reflective products is possible. To bring help in the conception of imaging conditions, a complete simulation is proposed. The simulation, based on computer graphics, enables the rendering of realistic images. Simulation provides here a very efficient way to perform tests compared to the numerous attempts of manual experiments.

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Correspondence to Ralph Seulin.

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Seulin, R., Merienne, F. & Gorria, P. Simulation of Specular Surface Imaging Based on Computer Graphics: Application on a Vision Inspection System. EURASIP J. Adv. Signal Process. 2002, 801489 (2002) doi:10.1155/S1110865702203030

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Keywords

  • reflective surface
  • online inspection
  • lighting
  • simulation