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Development of The Flexible User-Friendly Real-Time Machine Vision Inspection System  

Cho, In-Sung (Department of Mechatronics Engineering, Chungnam National University)
Lee, Ji-Hong (BK21 Mechatronics Group at Chungnam National University)
Oh, Sang-Jin (BK21 Mechatronics Group at Chungnam National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.45, no.3, 2008 , pp. 42-50 More about this Journal
Abstract
We developed a visual inspection system for detecting defective products. Most existing inspection systems are designed to be dedicated to one product, which makes operator spend extra money and time to adopt other products. In this work, we propose a flexible visual inspection system that can inspect various products without any additional major job at a low-cost. The developed system contained image processing algorithm libraries and user-friendly graphic interface for adaptable image-based inspection system. We can find a proper threshold value using the proposed algorithm which uses correlation coefficient between a non-defective product and existing sample images of defective product. And We tested the performance of the proposed algorithm using Otsu's method. The proposed system is applied to a automated inspection line for cellular phone.
Keywords
OpenCV; Machine vision; Visual programing; Inspection system;
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