关键词: 模板匹配；堵件漏装；机器视觉；缺陷检测

Abstract: A defect detection system based on template matching algorithm is proposed and developed to address the issue of missing key plugging in the field of automotive painting production. The system adopts a shape based template matching algorithm and an image pyramid search algorithm, which effectively reduces the impact of illumination and noise while ensuring real-time on-site operation. After the system is integrated into the production line, the operating results show that the system has a detection accuracy of 99.6%, strong resistance to illumination changes, low cost, and good application value.

Key words: Template matching; Missing plugging; Machine vision; Defect detection