Abstract
In this paper, we propose a weld inspection expert system which is enforced by an image processing environment. This system is consisted by the “expert system” and the “image processing” modules. This system has mainly two knowledge bases. The inspection knowledge base is given by some official standards such as JIS and the know-how's obtained from the inspection experts. The image processing knowledge base is used for the selection of image processing methods and for the tuning of over 40 parameters. In this system, the expert system and the image processing modules are unified and support each other in order to reduce the computation costs of image processing and also to reduce the mistakes of judgment in the inspection.
