1. A face recognition apparatus for previously registering a face image of a person, receiving a moving image in which face identification is intended to be performed, and performing face recognition in the received moving image, the apparatus comprising: face registration means that registers the face of a person as an image; face detection means that detects an image of the face in a frame of an input moving image; face tracking means that tracks the detected image of the face in frames of the input moving image; face identification means that compares the detected image of the face, which is being tracked by the face tracking means, with the registered face registered in the face registration means to identify the detected image of the face; and stabilization means that stabilizes a result of face identification by the face identification means, the stabilization means updating the registered face, registered in the face registration means, of the person whose face has been identified by the face identification means to a present detected image of the face of the person only once each predetermined frame period of the moving image, the predetermined frame period being equal to five frames.