High resolution adaptive colour printing verification system for quality control of distorted elements

  • Authors:

  • Artzai Picón Ruiz;Estibaliz Garrote Contreras;Jose Angel Gutierrez Olabarría;Evaristo Kahoraho Bukubille;José Ignacio Larrauri Villamor;Antton Azpiazu Kaltzakorta

  • Affiliations:

  • Infotech Dept., Robotiker, Tecnalia Technology Coporation, Bizkaia, Spain;Infotech Dept., Robotiker, Tecnalia Technology Coporation, Bizkaia, Spain;Infotech Dept., Robotiker, Tecnalia Technology Coporation, Bizkaia, Spain;Automatics and electronic Dept., ESIDE, Univ. Deusto, Bilbao, Spain;Automatics and electronic Dept., ESIDE, Univ. Deusto, Bilbao, Spain;Grupo Dam, Elgoibar, Spain

  • Venue:
  • ISCGAV'04 Proceedings of the 4th WSEAS International Conference on Signal Processing, Computational Geometry & Artificial Vision
  • Year:
  • 2004

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Abstract

The growing quality needs, the importance of brand image and the market globalisation (texts printed in other languages (Cyrillic, Chinese, Arabic,...) make necessary total quality control specifically designed for printed elements. Quality Control and verification of planar geometry elements have been resolved using classic techniques of pattern matching, histograms, difference image and other algorithms. However, verification of elements which present minor deformations (plastics, clothes, metallic cans) produced by the nature of the material or by the printing method (rolls) is quite complex because the printing can be considered correct although it presents minor deformations while it maintains certain visual features, but they must be very sensitive to tiny spots or other defects. The objective of this article is to present a verification method for printed elements which allows the quality control in this sort of products.