APPARATUS FOR DETERMINING BUILD OF OCCUPANT SITTING IN SEAT WITHIN VEHICLE CABIN

In an apparatus for determining a build of an occupant sitting in a seat within a cabin of a vehicle, an image acquirer is configured to acquire an image of the occupant. A position-information calculator is configured to calculate shoulder-joint information that is information representing positions of left and right shoulder joints of the occupant in the image. A twisted-posture determiner is configured to determine whether the occupant is in a twisted posture based on the shoulder-joint information. An occupant-build determiner is configured to determine a build of the occupant based on the shoulder-joint information. The occupant-build determiner is further configured to, in response to the twisted-posture determiner determining that the occupant is in the twisted posture, cancel making a determination of the build of the occupant based on shoulder-joint information that was used to determine that the occupant is in the twisted posture.