| 摘要 |
A candidate region extraction unit (110) extracts candidate regions from an image by using a common characteristic amount. A part region extraction unit (120) separates a part region, which has a high likelihood of being a part, from a second-part candidate region other than the part region. A characteristic amount calculation unit (130) calculates the intrinsic characteristic amount of each of the part region and the second-part candidate region. A characteristic amount correction unit (140) corrects the intrinsic characteristic amount of either one of the candidate regions on the basis of the length, the width, and the angle of the other candidate region. A determination unit (150) determines whether or not the part region and the second-part candidate region are parts that constitute a pair on the basis of the similarity between the corrected intrinsic characteristic amount and the intrinsic characteristic amount of the other candidate region. |
