Component Alignment by Image Matching Using Self-inverted Template

Abstract

This paper proposes a method to extract the position of a symmetric industrial component with respect to a point by template image matching. The template image is registered in the objective image and the target image area is searched in the same objective image using the inverted template image. The proposed method is robust to the inclination and the scale change of a component because the template image and the target image area are included in the same image. The experimental results show that the method is useful for measuring the positions of various components.