Driver's appearance recognition system

Image analysis – Applications – Personnel identification

Reexamination Certificate

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Reexamination Certificate

active

07466847

ABSTRACT:
A driver's appearance recognition system comprises: a camera to capture a driver's face image; a near infrared ray LED to radiate near infrared ray to the driver's face; an LED current control circuit to control the amount of current supplied to the near infrared ray LED; and an image processing circuit to execute an individual authentication process and a closed-eye detection process. When the individual authentication process is executed, it is necessary to increase the illumination intensity during image capture by the camera. For this purpose, a setup current value for the LED current control circuit is set to a high current value. When the closed-eye detection process is executed, the illumination intensity needs to be ensured as much as required for the closed-eye detection process. For this purpose, a setup current value is set to a current value lower than that used for execution of the individual authentication process.

REFERENCES:
patent: 5729619 (1998-03-01), Puma
patent: 6751340 (2004-06-01), Prokoski
patent: 2002/0134835 (2002-09-01), Kennedy
patent: A-H06-32154 (1994-02-01), None
patent: A-10-097691 (1998-04-01), None
patent: A-2000-168502 (2000-06-01), None
patent: A-2000-280780 (2000-10-01), None
patent: A-2002-288670 (2002-10-01), None
patent: A-2003-095067 (2003-04-01), None
patent: A-2003-256813 (2003-09-01), None
Notice of Reasons for Rejection dated on Jul. 13, 2007 in corresponding Japanese Patent application No. 2004-117931 (and English translation).
www.face-id.jp “Face authentication” by OMRON (Discussed on p. 3 of the spec.), copyright 2004.

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