Recognition Method by Image Processing Using 3D CAD Figure Information

We propose a method for recognizing a subject from the image taken by a CCD camera and comparing with the CAD figure. The three-dimensional CAD figure is transformed into a two-dimensional figure in which some color is added inside the contour. The transformed figure is used as the input of image processing. The two-dimensional CAD figure and an image of the recognized subject from one camera are represented by characteristics, that is, the center of gravity, contour, the distance between them, and FFT. The figure of the subject is estimated from these characteristics by comparing with the database of CAD figure.