JPS6424348A - Pattern recognizing device - Google Patents

Abstract

PURPOSE:To make it possible to detect with a high reliability, accurately, and economically by detecting as the center of candidate image when the similarity rate of the center position is maximum, deciding and selecting candidate images whose similarity rate is more than a specific threshold value from the similarity rate of the candidate images, and arranging them in the order of similarity rate. CONSTITUTION:The similarity rates computed to the images of parts which compose an input image are fed to a candidate detector 11, the similarity rates of the neighboring part images around the image of the concerned part as the center are compared with the similarity rate of the images of the parts, of the said similarity rates, and a candidate part image of the maximum value is detected. Then, the detected candidate is fed to a candidate deciding unit 21, compared with the threshold value, the decided candidate similarity rate output from the candidate deciding unit 21 which is larger than the threshold value is fed to a data storage unit 31, and arranged in the order of similarity rate together with position signals fed responding to the decided candidate similarity rates in the other way. In such a way, a part image similar to the part image desired to detect can be detected relatively economically and accurately.