关键词: 图像处理, 在线检测, 句法分析, 字符识别

Abstract: This paper designs an on-line detection system for work-pieces assembling error, which solves the problems of high labor intensity and low efficiency during the error detection done by people and considers the special feature of the detected work-pieces. The key idea of the system is that it introduces the non-contact vision inspection technology to industrial production. Utilizing image processing technologies such as noise removal, edge extraction, shadow detection, parsing of pattern feature, template matching. etc, the work-pieces whose surface images are captured by the CCD camera are detected whether they have processing errors or not during the production procedure. The experimental result indicates that the designed system has the merits of reducing the operator’s labor intensity, improving the efficiency of the error detection.

Key words: image processing, online detection, parsing, character recognition