| 摘要 |
PROBLEM TO BE SOLVED: To provide an object recognition method for improving discrimination capability about an object of a simple shape. SOLUTION: From the image of an acquired object (a step S1), an internal edge and an external edge are detected (a step S2), and featured values are detected on the basis of the extracted external/internal outlines (a step S3) (steps S3 to S6), and the calculation of its similarity with a registered pattern (a step S7) and the specification of the pattern based on this is carried out (steps S8, S9). When any pattern can not be specified from the external/internal outlines, closed curves based on the edges are successively added, and the featured value detection and the similarity calculation are carried out (steps S10 to S21), so that the pattern can be specified. COPYRIGHT: (C)2006,JPO&NCIPI
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