DIFFERENT METHODS OF DEFECT DETECTION – A SURVEY

In this modern era, visual evaluation is indispensable unit for regulating the product quality in any industry. But in earlier days, these evaluations were performed manually by human scrutinizers. Using human operators, Defect Detection cannot be performed accurately, because of lack of alertness and distraction. In order to overcome these drawbacks, automated visual evaluation systems can be used. Defect Detection is a method where automated visual evaluation systems can be used to control the product quality in an industry to meet its objective. In this paper, we review different Defect Detection methods to detect various defects in an automated way.