| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device and a method for accurately extracting an area corresponding to an object forming a specific geometric figure from an image. <P>SOLUTION: An image recognition device comprises: an edge extraction unit for extracting edge segments from an image; an acquisition unit for acquiring combinations of candidates for predetermined geometric figures to be formed by using the edge segments extracted by the edge extraction unit; a calculation unit for calculating a recall ratio indicating a level at which the extracted edge segments cover outer circumference of figure candidates and a relevance ratio indicating a level at which the extracted edge segments are to be used as the figure candidates, for each combination acquired by the acquisition unit; and an image extraction unit for extracting an area corresponding to figure candidates included in a combination with the highest evaluation value determined on the basis of the recall ratio and relevance ratio. <P>COPYRIGHT: (C)2013,JPO&INPIT |
