US 12,459,429 B2
Occupant state monitoring apparatus
Satoru Iwata, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Mar. 3, 2023, as Appl. No. 18/178,058.
Claims priority of application No. 2022-045712 (JP), filed on Mar. 22, 2022.
Prior Publication US 2023/0302992 A1, Sep. 28, 2023
Int. Cl. G06T 7/70 (2017.01); B60Q 9/00 (2006.01); G06V 20/59 (2022.01)
CPC B60Q 9/00 (2013.01) [G06T 7/70 (2017.01); G06V 20/597 (2022.01); G06T 2207/30201 (2013.01); G06T 2207/30268 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An occupant state monitoring apparatus comprising:
a camera configured to capture an image of an occupant who is in a vehicle;
a storage configured to store vehicle member coordinates, the vehicle member coordinates being position information of a vehicle member of the vehicle, the vehicle member coordinates indicating a position of a surface of the vehicle member in three-dimensional coordinates; and
a calculation controller configured to:
calculate, based on the image, gaze coordinates representing a position of a point at which the occupant gazes in the three-dimensional coordinates; and
determine that the occupant is in a distracted state, upon determining that the point at which the occupant gazes is located between the surface of the vehicle member and the occupant,
wherein the calculation controller is further configured to:
determine whether a distance between the point at which the occupant gazes and the surface of the vehicle member is equal to or greater than a predetermined threshold;
in response to determining that the point at which the occupant gazes is located between the surface of the vehicle member and the occupant, but the distance is not equal to or greater than the predetermined threshold, determine that the occupant is not in the distracted state; and
in response to determining that the point at which the occupant gazes is located between the surface of the vehicle member and the occupant, and the distance is equal to or greater than the predetermined threshold, determine that the occupant is in the distracted state.