Driver's drowsiness detection method of drowsy driving warning system
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United States of America Patent
Stats
-
Jun 5, 2001
Grant Date -
N/A
app pub date -
Jun 17, 1999
filing date -
Jun 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A driver's drowsiness detection method of a drowsy driving alarming system comprising the steps of: determining a vertical width of a driver's eye from a driver's face image input from a CCD camera, presetting a standard vertical width and a standard drowsiness factor on the basis of the average vertical width of the driver's eye, comparing a real vertical width of the driver's eye with the standard vertical width, increasing or decreasing a drowsiness factor depending on the vertical width of the driver's eye, and judging whether the driver is drowsy or not by comparing the drowsiness factor increased or decreased to the standard drowsiness factor.
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