Photography – Eye tracking
Patent
1997-07-21
1999-07-20
Perkey, W. B.
Photography
Eye tracking
G03B 1700
Patent
active
059266554
ABSTRACT:
A line of sight detection device detects a user's line of sight by illuminating an eyeball of a user, receiving light from the eyeball of the user, detecting a wink of the user, detecting a line of sight of the user based on a light receiving state of a light receiving means, changing at least one of an illuminating condition of an illuminating means and a light receiving condition of the light receiving means, and repeating a line of sight detecting operation based on the light receiving state of the light receiving means during the line of sight detecting operation, the line of sight detecting operation being repeated without changing the illuminating condition of the illuminating means and the light receiving condition of the light receiving means when a wink detection means detects a wink of the user during the line of sight detecting operation.
REFERENCES:
patent: 5485241 (1996-01-01), Irie et al.
patent: 5486892 (1996-01-01), Suzuki et al.
patent: 5541400 (1996-07-01), Hagiwara et al.
patent: 5561289 (1996-10-01), Yamada et al.
patent: 5579080 (1996-11-01), Irie et al.
patent: 5589908 (1996-12-01), Irie
patent: 5634141 (1997-05-01), Akashi et al.
Aoyama Keisuke
Irie Yoshiaki
Canon Kabushiki Kaisha
Perkey W. B.
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