Abstract: A face feature point extraction unit to extract multiple face feature points from a face image; a model posture change unit to change the position and posture of a first three-dimensional model in such a way that the errors between the positions of the multiple face feature points and the positions of multiple model feature points on the face image become less than or equal to respective thresholds for error determination; a degree of match acquisition unit to acquire the degrees of match on the face image between the positions of the multiple model feature points on the first three-dimensional model having the changed position and posture, and the positions of the multiple face feature points; and a calibration unit to calibrate the first three-dimensional model by shifting the position of a model feature point on the basis of the corresponding one of the degrees of match are included.