AUTHENTICATION APPARATUS, AUTHENTICATION METHOD AND AUTHENTICATION COMPUTER PROGRAM PRODUCT

An operation of an authentication apparatus is as follows: Moving image data including a plurality of pieces of still image frame data is accepted, and the move locus of at least one person image is detected based on the moving image data. Individual determination processing of adopting at least one piece of the still image frame data as attention frame data and determining the individual corresponding to the detected move locus of the person image in the attention frame data is executed. The result of the individual determination processing is provided for predetermined authentication processing.