Image analysis – Applications – Personnel identification
Reexamination Certificate
2008-02-12
2011-10-25
Werner, Brian (Department: 2624)
Image analysis
Applications
Personnel identification
Reexamination Certificate
active
08045766
ABSTRACT:
A sleep prevention system captures a facial image of a driver, determines a sleepiness level from the facial image and operates warning devices including neck air conditioner, seatbelt vibrator, and brake controller if necessary based on the sleepiness determination. A sleepiness determination device determines sleepiness from facial expression information such as distances between corners of a mouth, distance between an eyebrow and eye, tilt angle of a head, and other facial feature distances. The facial distances are calculated from captured images and from reference information gather during wakefulness. The sleepiness degree is determined based on the determination results including combinations thereof.
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Notice of Rejection issued from the Japanese Patent Office mailed on Jul. 21, 2009 in the corresponding Japanese patent application No. 2007-276551 (and English translation).
Ishida Kenji
Kimura Teiyuu
Ozaki Noriyuki
Uchiyama Kahori
DENSO CORPORATION
Posz Law Group , PLC
Werner Brian
LandOfFree
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