Abstract: An individual animal identification apparatus has an eye region image pick-up unit for obtaining an input image by taking a picture of an eye, including an iridial granule, of an animal to be registered and identified, a geometric normalizer for performing a coordinate transformation process by using a specified parameter to move the iridial granule region of the input image onto predetermined coordinates, a feature extractor for extracting the feature of the normalized iridial granule, a dictionary memory for registering data on the features of the iridial granule regions corresponding to animals to be registered, the data having been extracted by the feature extractor, and a collator for checking whether or not an animal to be identified has been registered by comparing data on the feature of the iridial granule region corresponding to the animal under identification, the feature having been extracted by the feature extractor, with the feature data registered in the dictionary memory.

Abstract: An animal body identifying device of the present invention includes a camera for photographing an eye of an animal, a body data capturer for capturing body data for the photographed animal from an image photographed by the camera, a body data registry for pre-storing a plurality of body data and a body data collator for correlating body data stored in the body data registry with body data captured by the body data capturer and identifying whether or not the photographed animal is a registered animal. An animal body identifying system of the present invention includes a body data capturing device for photographing an eye of an animal and capturing body data for the animal and a body data comparing device for collating body data obtained from the body data capturing device with pre-registered body data and determining whether or not the photographed animal is a registered animal.