Surface Inspection System for Billets, Bars and Wire Rods
نویسندگان
چکیده
منابع مشابه
Development of Surface Inspection System for Wire Rod
This paper introduces the surface inspection system for wire rod in steel-making industry. The inspection system is based on vision technology. We have developed illumination system with blue LED lighting sources to get best quality of surface image. And we have implemented defect detection algorithms based on block sigma transform which can recognize wire rod objects and segments defect candid...
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A novel lighting system was devised for 3D defect inspection in the wire bonding process. Gold wires of 20 microm in diameter were bonded to connect the integrated circuit (IC) chip with the substrate. Bonding wire defects can be classified as 2D type and 3D type. The 2D-type defects include missed, shifted, or shorted wires. These defects can be inspected from a 2D top-view image of the wire. ...
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Specular surfaces inspection is a problem met frequently within the automatic control of metallic products. A tried technique to reveal the aspect defects is the imaging of the reflection of a structured lighting as Dark Field Illumination through the surface. In order to inspect the whole surface, an element of the lighting structure has to scan every part of the surface. In the case of import...
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T hough the need to consider all aspects of real-time in the development of a system is not new to control engineers, they are relatively new to the machine vision specialists, especially as they tend to come from various dierent backgrounds. In practice most vision experts tend to ``tweak'' their systems to match the speed of the application environment. They rarely use any formal or indeed i...
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ژورنال
عنوان ژورنال: Tetsu-to-Hagane
سال: 1993
ISSN: 0021-1575,1883-2954
DOI: 10.2355/tetsutohagane1955.79.7_847