tailieunhanh - Báo cáo hóa học: "Research Article New Structured Illumination Technique for the Inspection of High-Reflective Surfaces: Application for the Detection of Structural Defects "

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article New Structured Illumination Technique for the Inspection of High-Reflective Surfaces: Application for the Detection of Structural Defects | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2008 Article ID 237459 14 pages doi 2008 237459 Research Article New Structured Illumination Technique for the Inspection of High-Reflective Surfaces Application for the Detection of Structural Defects without any Calibration Procedures Yannick Caulier 1 Klaus Spinnler 1 Salah Bourennane 2 and Thomas Wittenberg1 1 Fraunhofer-Institut fur Integrierte Schaltungen IIS Am Wolfsmantel 33 91058 Erlangen Germany 2 GSM Institut Fresnel CNRS-UMR 6133 Ecole Centrale Marseille Universite Aix-Marseille III . de Saint-Jerome Marseille Cedex20 France Correspondence should be addressed to Yannick Caulier cau@ Received 31 January 2007 Accepted 29 November 2007 Recommended by Gerard Medioni We present a novel solution for automatic surface inspection of metallic tubes by applying a structured illumination. The strength of the proposed approach is that both structural and textural surface defects can be visually enhanced detected and well separated from acceptable surfaces. We propose a machine vision approach and we demonstrate that this technique is applicable in an industrial setting. We show that recording artefacts drastically increases the complexity of the inspection task. The algorithm implemented in the industrial application and which permits the segmentation and classification of surface defects is briefly described. The suggested method uses perturbations from the stripe illumination to detect segment and classify any defects. We emphasize the robustness of the algorithm against recording artefacts. Furthermore this method is applied in 24 h 7 day real-time industrial surface inspection system. Copyright 2008 Yannick Caulier et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION One .