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Algorithm for monitoring head/eye motion for driver alertness with one camera

  • US 6,927,694 B1
  • Filed: 08/16/2002
  • Issued: 08/09/2005
  • Est. Priority Date: 08/20/2001
  • Status: Expired due to Term
First Claim
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1. A driver alertness system comprising:

  • (a) a single camera within a vehicle aimed at a head region of a driver;

    (b) means for simultaneously monitoring head rotation, yawning and full eye occlusion of the driver with said camera, the head rotation including nodding up and down, and moving left to right, and the full eye occlusion including eye blinking and complete eye closure, the monitoring means includes means for determining left to right rotation and the up and down nodding from examining approximately 10 frames from approximately 20 frames; and

    (c) alarm means for activating an alarm in real time when a threshold condition in the monitoring means has been reached, whereby the driver is alerted into driver vigilance.

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