| 摘要 |
An image processing apparatus includes a first local amount generation unit, a correspondence point calculation unit, a relative correspondence point information calculation unit, a correspondence point selecting unit and a decision unit. The first local feature value generation unit calculates, for a first image, a set of information about first local feature values including a first feature point(s). The correspondence point calculation unit calculates, for a second image, as information about correspondence point(s), a correspondence relation between the first feature point and a second feature point(s) contained in a set of information about second local feature values calculated from the second image. The relative correspondence point information calculation unit calculates relationships of scales of feature points, as the information about the relative scale sizes of correspondence points, based on the set of information about the first local feature values and the set of information about the second local feature values on the information about correspondence point(s). The correspondence point selecting unit performs clustering on feature points, based on the information about the relative scale sizes of the correspondence points, and selects at least one feature point, and the decision unit decides on possible photographic subject identity, from cluster to cluster, based on the feature point(s) selected. |
