A Study on the Effect of Mixing Rate of Defective Products on Defect Detection in Visual Inspection
نویسندگان
چکیده
In order to assure appearance quality of an industrial product, sensory inspection by human vision (visual inspection) is implemented in many manufacturing industries. This study focuses on the fact that the frequency of occurrence of defective products varies each time in production processes, and also considers the relationship between the mixing rate of the defective product and defect detection in visual inspection utilizing peripheral vision. Specifically, the mixing rate of defective products, defect location, and defect characteristics (luminance contrast between defect and inspection model and size) are designed as experimental factors, and their effect on inspection efficiency and inspection accuracy are evaluated with ten subjects. As a result, it is obtained that the inspection efficiency (inspection time) becomes lower and the inspection accuracy (defect detection rate) becomes higher according to the mixing rate of defective products. Consequently, it is clarified that inspection efficiency and inspection accuracy vary with the frequency of occurrence of defective products in production processes.
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