Driver alertness detection method, device and system
AssigneeTobii AB
InventorAndrew Ratcliff
Life of this patent
Estimating the term…
Abstract
The invention is related to a method for driver alertness detection, The method comprises the steps of determining a vanishing point of a vehicle in motion; determining over time, by an eye tracking device, a set of gaze points of the driver of the vehicle; determining a gaze movement from the set of gaze points; and identifying an alertness of the driver, based on a direction of the gaze movement relative to the vanishing point being outward. Further, the invention is related to an eye tracking device for driver alertness detection, an alertness detection system, a computer program, and a computer-readable medium.
Claims17
A method for driver alertness detection, comprising:
- determining a vanishing point of a vehicle in motion, wherein the vanishing point is a point towards which the vehicle is moving;
- determining over time, by an eye tracking device, a set of gaze points of the driver of the vehicle;
- determining a direction of movement of gaze from the set of gaze points;
- and
- identifying an increased level of alertness of the driver, based on the direction of movement of gaze being away and outward from the vanishing point, wherein the identifying of the alertness of the driver is further based on whether a distance between two gaze point pairs, in an outward direction from the vanishing point, is increasing.
An eye tracking device for driver alertness detection, comprising:
- a processor configured to:
- determine a vanishing point of a vehicle in motion, wherein the vanishing point is a point towards which the vehicle is moving;
- determine over time a set of gaze points of the driver of the vehicle;
- determine a direction of movement of gaze from the set of gaze points;
- and
- identify an increased level of alertness of the driver, based on the direction of movement of gaze being away and outward from the vanishing point, wherein the identifying of the alertness of the driver is further based on if a distance between two gaze point pairs, in an outward direction from the vanishing point, is increasing.
A driver alertness detection system, comprising:
- a vehicle;
- and
- an eye tracking device;
- the eye tracking device comprising a processor configured to:
- determine a vanishing point of the vehicle in motion, wherein the vanishing point is a point towards which the vehicle is moving;
- determine over time a set of gaze points of the driver of the vehicle;
- determine a direction of movement of gaze from the set of gaze points;
- and
- identify an increased level of alertness of the driver, based on the direction movement of gaze being away and outward from the vanishing point, wherein the identifying of the alertness of the driver is further based on if a distance between two gaze point pairs, in an outward direction from the vanishing point, is increasing.
A non-transitory computer-readable medium having stored thereon a computer program for driver alertness detection, comprising:
- determining a vanishing point of a vehicle in motion, wherein the vanishing point is a point towards which the vehicle is moving,
- determining over time a set of gaze points of the driver of the vehicle,
- determining a direction of movement of gaze from the set of gaze points, and
- identifying an increased level of alertness of the driver, based on the direction of movement of gaze being away and outward from the vanishing point, wherein the identifying of the alertness of the driver is further based on if a distance between two gaze point pairs, in an outward direction from the vanishing point, is increasing.
Dependencies are inferred from the claim text.