| 摘要 |
PROBLEM TO BE SOLVED: To correctly classify an input image regardless of a fluctuation in illumination and a state of occlusion of the input image. SOLUTION: An input image sub-region extraction means 2 extracts a sub-region of the input image. An inter-pattern distance calculation means 3 calculates an inter-pattern distance between this sub-region and a sub-region of a registration image pre-filed in a dictionary filing means 5 for each sub-region. A region distance value integration means 10 integrates the inter-pattern distance obtained for each sub-region. This is conducted for the registration image of each category. An identification means 4 finds a minimum value out of the integrated inter-pattern distance, and in the event that the minimum value is smaller than a threshold, outputs a category having the minimum distance as a recognition result. COPYRIGHT: (C)2009,JPO&INPIT
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