Automatic direct gaze detection based on pupil symmetry

Details Automatic direct gaze detection based on pupil symmetry Automatic direct gaze detection based on pupil symmetry

2009-02-15

2010-10-26

Mai, Huy K (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

For interpupillary distance measuring or lens positioning

C351S209000, C351S210000, C351S246000, C382S103000

Reexamination Certificate

active

07819525

ABSTRACT:
The present invention provides a system and methods for direct gaze detection based on pupil symmetry. The system and methods work by first finding the user's eyes in a video camera image and measuring the symmetry of the pupil region. If this pupil region is close to round, the invention determines that the user is looking nearly directly or close to directly at the camera, or has direct gaze at the camera. This technique handles both eye motions and head motions (e.g., the gaze may shift with or without the head being turned).

REFERENCES:
patent: 5155516 (1992-10-01), Shindo
patent: 5293535 (1994-03-01), Sensui
patent: 5428413 (1995-06-01), Shindo
patent: 5557364 (1996-09-01), Shindo et al.
patent: 5561973 (1996-10-01), St. Germain
patent: 5608489 (1997-03-01), Ozakl
patent: 5818954 (1998-10-01), Tomono et al.
patent: 6152563 (2000-11-01), Hutchinson et al.
patent: 6246779 (2001-06-01), Fukui et al.
patent: 6331168 (2001-12-01), Socci et al.
patent: 7068813 (2006-06-01), Lin
patent: 7458901 (2008-12-01), Hoganson
patent: 7460940 (2008-12-01), Larsson et al.
patent: 7717561 (2010-05-01), Knaan et al.
patent: 2006/0189405 (2006-08-01), Hoganson

Affiliated with

Also associated with

Rating

Automatic direct gaze detection based on pupil symmetry does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic direct gaze detection based on pupil symmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic direct gaze detection based on pupil symmetry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4188783