Patent ID: 11919465
Assignee: DENSO CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 7:
8. An apparatus for determining a build of an occupant sitting in a seat within a cabin of a vehicle, comprising:
a non-transitory memory storing one or more computer programs; and
a processor executing the one or more computer programs to:
acquire an image of the occupant; and
determine whether the occupant comprises an adult-male-build level, an adult-female-build level or a child-build level, wherein determining whether the occupant comprises the adult-male-build level, the adult-female-build level or the child-build level comprises:
determining whether the occupant is in a twisted posture by comparing a shoulder angle to an angle threshold, the shoulder angle comprising an angle of a line connecting a left shoulder joint and a right shoulder joint of the occupant in the image relative to a horizontal direction that is parallel to a width direction of the vehicle;
for a state in which the occupant is determined not to be in the twisted posture, determining whether the occupant is an adult-build level or a child-build level by comparing a shoulder-width of the occupant to a first shoulder-width threshold, the shoulder-width comprising a length between the left shoulder joint and the right shoulder joint of the occupant;
for a state in which the occupant is determined to be in the twisted posture, determining whether the occupant is a normal build by comparing a ratio of the shoulder-width and a sitting height of the occupant to a predefined ratio range, the sitting height comprising a length between a middle position between the left shoulder joint and the right shoulder joint of the occupant and a middle position between a right waist joint and a left waist joint;
for a state in which the occupant is determined to be the normal build, determining whether the occupant is the adult-male-build level or the adult-female-build level by comparing the shoulder-width of the occupant to a second shoulder-width threshold; and
for a state in which the occupant is determined not to be the normal build, determining whether the occupant is the adult-male-build level or the adult-female-build level by comparing an area occupied by the occupant in the image to an occupant-area threshold.