1. An object identification device comprising: a local feature quantity matching unit that calculates geometric transformation information for transformation from coordinates in a reference image to corresponding coordinates in an input image, and matches a local feature quantity extracted from the reference image and a local feature quantity extracted from the input image; an input image different area determination unit that transforms the different area in the reference image on a basis of the geometric transformation information about the input image determined to be in conformity by the matching, and determines a different area in the input image corresponding to the different area in the reference image; an input image different area feature quantity extraction unit that corrects a different area in the input image, and extracts a feature quantity from the corrected different area of the input image; and a feature quantity matching unit that matches a feature quantity extracted by the input image different area feature quantity extraction unit and a feature quantity extracted from the different area in the reference image, and outputs a matching result.