| 摘要 |
PROBLEM TO BE SOLVED: To improve the accuracy of a feature vector generated from an image by using visual keywords. SOLUTION: When partial images G30 and G50 extracted from retrieval target images G3 and G5 belong to a cluster #2 to which a partial image G10 of a query image G1 belongs, scalar values corresponding to the cluster #2 of feature vectors of the query image G1 and the retrieval target images G3, G5 are respectively added according to a distance from a center point C. Weight values are respectively added based on a distance d1 for the query image G1, a distance d3 for the retrieval target image G3, and a distance d5 for the retrieval target image G5 to the scalar values corresponding to the cluster #2 of the feature vectors of the respective images. COPYRIGHT: (C)2011,JPO&INPIT
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