Patent ID: 9390337
Filing Date: 2016-07-12
CPC Classification: A61B,G06K

Claim Text:
1. An alertness level detection apparatus equipped to a vehicle and detecting an alertness level of a driver, the alertness level detection apparatus comprising: a stimulus information acquirer detecting a stimulus newly applied to a visual sensation of the driver within a visual field of the driver under a state in which the driver watches in a travel direction of the vehicle and acquiring stimulus information related to an occurrence time of the stimulus and an occurrence position of the stimulus within the visual field of the driver; a face image generator generating a face image of the driver; a line-of-sight position detector detecting a position of a line of sight of the driver by analyzing the face image; a moving time duration detector detecting a moving time duration taken for the driver to move the line of sight to the occurrence position of the stimulus immediately after the occurrence time of the stimulus; and an alertness level determiner determining the alertness level of the driver based on the moving time duration.