| 摘要 |
PROBLEM TO BE SOLVED: To calculate a distance between image data classified by a classification tree so as to be suitable for blending with a distance between images due to image feature quantity.SOLUTION: A category path specification part 311 specifies respective category paths from a top node to an object node about two object nodes to be distance calculation objects. A node specification part 312 specifies non-common nodes between category paths to each other. A weight calculation part 313 calculates a weight that is smaller as a hierarchy in a tree structure descends about non-common nodes belonging to a category path reaching the lowest hierarchy. An addition part 314 calculates an inter-node distance by adding the weights calculated about the non-common nodes. |
