| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide the technology detecting impersonation by a picture or the like by simple processing without enlarging a device or degrading convenience. <P>SOLUTION: The device provided with an image pickup means and a displaying means performs processing of: acquiring from the image pickup means a second image to be used to determine impersonation while displaying a first image for attracting user's attention to the displaying means; detecting a face from the second image; estimating visual lines of the detected face; and determining whether the second image is an impersonation image on the basis of a position relation between the estimated visual lines and the displaying means or image pickup means. <P>COPYRIGHT: (C)2008,JPO&INPIT |
