Patent ID: 9213815
Filing Date: 2015-12-15
Classification: G06F,H04N

Abstract:
1. An authentication device provided on an apparatus as an object of operation for authorizing a user of the apparatus, comprising: a display device configured to display information; an authentication processing device configured to execute an authentication process for the user; a first display control device causing, responsive to said authentication processing unit having authenticated the user, said display device to display an operation screen image to be operated by the user; an image pick-up device configured to pick-up an image of the user authenticated by said authentication processing device; a feature information acquiring unit configured to acquire feature information of said user by using said image pick-up device; a tracking unit configured to track said user based on said acquired feature information, by controlling said image pick-up device; a switching unit switching, responsive to said tracking unit detecting said user having moved away from the apparatus, display by said display device to a screen image different from said operation screen image; a second display control device causing, responsive to said tracking unit detecting said user once having moved away from the apparatus but within a tracking range of said tracking unit and having returned to a position where said user can operate the apparatus without interruption of tracking, said display device to display said operation screen image; and a cancelling unit configured to execute using a processor, responsive to said tracking unit detecting interruption of tracking of said user after said user moved away from the apparatus to outside of the tracking range of said tracking unit, a process of cancelling authentication for said user.