Method and device for estimating a direction of a view of a vehicle occupant, method and device for determining a head movement gain parameter specific for a vehicle occupant, and method and device for estimating the direction of view of a vehicle occupant

A method for determining a head movement gain parameter specific for an occupant of a vehicle, the method comprising the following steps:

• producing a head movement pattern specific for the vehicle occupant during a visual fixing of an object using sensor data of eye eccentricity and head eccentricity of the vehicle occupant during at least one visual fixing of an object, the eye eccentricity representing an angular deviation of an eye orientation of an eye of the vehicle occupant during a movement from a rest position of the eye up to the reaching of an eye fixation position of the eye terminating a current eye movement of the eye, and the head eccentricity representing an angular deviation of a head orientation of a head of the vehicle occupant during a movement from a rest position of the head when reaching a head fixation position of the head terminating a current head movement of a head;
• and
• determining the head movement gain parameter specific for the vehicle occupant using the specific head movement pattern;
• wherein in the step of determining the head movement gain parameter specific for the vehicle occupant, a division is carried out of a head eccentricity value of the head movement pattern, corresponding to the sensor data concerning the head eccentricity, and an eye eccentricity value of the head movement pattern, corresponding to the sensor data concerning the eye eccentricity, the head eccentricity value forming a dividend of the division and the eye eccentricity value forming a divisor of the division.

A method for estimating the direction of view of an occupant of a vehicle, the method comprising:

• determining a head movement gain parameter specific for an occupant of a vehicle, including:
• producing a head movement pattern specific for the vehicle occupant during a visual fixing of an object using sensor data of eye eccentricity and head eccentricity of the vehicle occupant during at least one visual fixing of an object, the eye eccentricity representing an angular deviation of an eye orientation of an eye of the vehicle occupant during a movement from a rest position of the eye up to the reaching of an eye fixation position of the eye terminating a current eye movement of the eye, and the head eccentricity representing an angular deviation of a head orientation of a head of the vehicle occupant during a movement from a rest position of the head when reaching a head fixation position of the head terminating a current head movement of a head, and
• determining the head movement gain parameter specific for the vehicle occupant using the specific head movement pattern;
• and
• estimating a direction of view of an occupant of a vehicle, including:
• ascertaining a head fixation position of a head of the vehicle occupant, which terminates a current head movement of the head, using sensor data representing an angular speed of the current head movement;
• and
• combining the head fixation position and the head movement gain parameter to estimate the direction of view of the vehicle occupant, the head movement gain parameter being a function of a head movement pattern individual for a vehicle occupant during a visual fixing of an object.

A device configured to determine a head movement gain parameter specific for an occupant of a vehicle, the device configured to:

• produce a head movement pattern specific for the vehicle occupant during a visual fixing of an object using sensor data of eye eccentricity and head eccentricity of the vehicle occupant during at least one visual fixing of an object, the eye eccentricity representing an angular deviation of an eye orientation of an eye of the vehicle occupant during a movement from a rest position of the eye up to the reaching of an eye fixation position of the eye terminating a current eye movement of the eye, and the head eccentricity representing an angular deviation of a head orientation of a head of the vehicle occupant during a movement from a rest position of the head when reaching a head fixation position of the head terminating a current head movement of a head;
• and
• determine the head movement gain parameter specific for the vehicle occupant using the specific head movement pattern;
• wherein the eye fixation position is determined by the device using sensor data representing an angular speed of an eye movement of the eye of the vehicle occupant during the visual fixing of the object.

A non-transitory machine-readable storage medium on which a computer program is stored, the computer program for determining a head movement gain parameter specific for an occupant of a vehicle, the computer program, when executed by a processor, causing the processor to perform:

• producing a head movement pattern specific for the vehicle occupant during a visual fixing of an object using sensor data of eye eccentricity and head eccentricity of the vehicle occupant during at least one visual fixing of an object, the eye eccentricity representing an angular deviation of an eye orientation of an eye of the vehicle occupant during a movement from a rest position of the eye up to the reaching of an eye fixation position of the eye terminating a current eye movement of the eye, and the head eccentricity representing an angular deviation of a head orientation of a head of the vehicle occupant during a movement from a rest position of the head when reaching a head fixation position of the head terminating a current head movement of a head;
• and
• determining the head movement gain parameter specific for the vehicle occupant using the specific head movement pattern;
• wherein the eye fixation position is determined using sensor data representing an angular speed of an eye movement of the eye of the vehicle occupant during the visual fixing of the object.

A method for estimating the direction of view of an occupant of a vehicle, the method comprising:

• determining a head movement gain parameter specific for an occupant of a vehicle, including:
• producing a head movement pattern specific for the vehicle occupant during a visual fixing of an object using sensor data of eye eccentricity and head eccentricity of the vehicle occupant during at least one visual fixing of an object, the eye eccentricity representing an angular deviation of an eye orientation of an eye of the vehicle occupant during a movement from a rest position of the eye up to the reaching of an eye fixation position of the eye terminating a current eye movement of the eye, and the head eccentricity representing an angular deviation of a head orientation of a head of the vehicle occupant during a movement from a rest position of the head when reaching a head fixation position of the head terminating a current head movement of a head, and
• determining the head movement gain parameter specific for the vehicle occupant using the specific head movement pattern;
• and
• estimating a direction of view of an occupant of a vehicle, including:
• ascertaining a head fixation position of a head of the vehicle occupant, which terminates a current head movement of the head, using sensor data concerning an angular speed of the current head movement;
• combining the head fixation position and the head movement gain parameter to estimate the direction of view of the vehicle occupant, the head movement gain parameter being a function of a head movement pattern individual for a vehicle occupant during a visual fixing of an object;
• and
• selecting the head movement gain parameter from a plurality of head movement gain parameters as a function of an angular size of the current head movement.