| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a view line detection device reducing time-lag until a Purkinje image of a light source can be detected after failing in detection of a Purkinje image of a light source. <P>SOLUTION: This view line detection device 1 includes: a plurality of light sources (11-1 to 11-4) disposed in positions different from each other; an imaging part 12 generating a first image obtained by photographing an eye of a user while a first light source illuminates the eye of the user and a second image obtained by photographing the eye of the user while a second light source illuminates the eye of the user every prescribed period; and a control part 14 deciding whether or not a pupil gravity center of the user and a cornea-reflected image by one of the first and second light sources can be detected from one of the first and second images every prescribed period, detecting a view line direction of the user according to positional relation between the pupil gravity center and the cornea-reflected image when detecting the cornea-reflected image and the pupil gravity center, and detecting the pupil gravity center and the cornea-reflected image from the other of the first and second images when one of the cornea-reflected image or the pupil gravity center cannot be detected. <P>COPYRIGHT: (C)2012,JPO&INPIT |
