| 摘要 |
PROBLEM TO BE SOLVED: To provide a suitable image search method for various images. SOLUTION: A photograph image search part 10 of this system devides input document image 100 into blocks, and obtains image feature quantity such as the amount of edges for each block; and calculates a similarity score (a first score 110) to the input document image 100 of each registered image by comparing distribution of the image feature quantities of the input image with distribution of the image feature quantities of each registered image. A text search part 20 calculates a similarity score (a second score 120) to the input document image 100 of each registered image based on the similarity of the text as the result that the images are recognized as characters. A candidate extraction part 50 integrates the first score 110 of each registered image with the second score 120, and extracts as the candidates the registered images whose acquired integrated score become high rank. A document image search part 52 calculates the final similarity by comparing these candidates with the input document image 100 between projection wave forms. COPYRIGHT: (C)2007,JPO&INPIT
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