To instruct a proper photographing position to a user to certainly obtain a photographed image of both eyes.
This photographing device 2 of an authentication device 1 has: a photographing part 10 photographing a photographic subject; an image quality decision part 11 deciding goodness/badness of image quality of an eye image of the photographic subject from photographic information obtained by taking a photograph by the photographing part 10; an eye position detection part 12 detecting a position of an eye of the photographic subject from the photographic information; a right/left decision part 30 deciding which eye of the right and left eyes is the eye of the photographic subject from the photographic information; an instruction control part 51 outputting a control signal for controlling instruction contents to the photographic subject according to the position of the eye detected by the eye position detection part 12 and right and left information of the eye decided by the right/left decision part 30; and an instruction part 50 outputting the instruction contents according to the control signal from the instruction control part 51.
Toshimitsu Ichikawa
Kimihide Hashimoto