Automated visual inspection of web-type products using unitary transforms

• Alam Eldin ^[1] ; Nour Eldin ^[1]
  1. [1] University of Wuppertal

     University of Wuppertal

     Kreisfreie Stadt Wuppertal, Alemania

     
• Localización: Mini and Microcomputers and their applications / Emilio Luque Fadón (ed. lit.), 1988, págs. 449-452
• Idioma: inglés
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• Resumen

  • A tecnique based upon the DCT is proposed for automated visual inspection of web type products. The tecnique not only provides defect detection, but also classifies defects. It will be shown that only 23% of the transform coefficients are sufficient for defect detection and classification in a six class problem. A heuristic classifier is designed for defect classification of real textile prodcuts and resulted in hundred percent correct classification. An objective class determination method simplifies the standardization of defects in textile industry.