If the identification information of the object is part unknown, such determination system capable of notifying the identification information of the object is disclosed. According determination system, registration identification information of the registered objects, the storage means for registering the image and the associate registered image position information of the specific position stored in a specific location of the registration object, presenting identification information of the presentation object one search means for searching the registration identification information including parts from the storage means, the registration image position information associated with the registered identification information obtained by the search and acquisition means for acquiring the registered image from said memory means when, among the image obtained by imaging the presentation object, if the image of a portion corresponding to the acquired registration image position information, the judging means for judging whether or not matching the registered image match, the enrollment and a notifying means for notifying the identification information.