Abstract: A detection device includes an image segmenter and a detector. The image segmenter cuts out a first region image and a second region image from an image of a vehicle interior that is acquired from an imaging device. The first region image shows at least a portion of a first part of a body of an occupant. The second region image shows at least a portion of a region of the vehicle interior around the first part or at least a portion of a second part of the body of the occupant. The detector detects an orientation of the first part of the body of the occupant based on a feature amount of the first region image and a feature amount of the second region image.

Abstract: A detection device includes an image segmenter and a detector. The image segmenter cuts out a first region image and a second region image from an image of a vehicle interior that is acquired from an imaging device. The first region image shows at least a portion of a first part of a body of an occupant. The second region image shows at least a portion of a region of the vehicle interior around the first part or at least a portion of a second part of the body of the occupant. The detector detects an orientation of the first part of the body of the occupant based on a feature amount of the first region image and a feature amount of the second region image.

Abstract: A determination device includes an receiver that receives a face image of a user from a camera whose direction of optical axis is predetermined with respect to a reference direction and a determiner that determines the face direction of the user depending on whether or not the reliability of a face direction calculated based on the face image and a learning model. The determiner determines the face direction depending on whether or not the reliability is greater than a first threshold value if the optical axis of the camera faces in a first direction and determines the face direction depending on whether or not the reliability is greater than a second threshold value different from the first threshold value if the optical axis faces in a second direction different from the first direction.

Abstract: A determination apparatus includes: an inputter that receives image information captured by a camera; and a controller that detects a face direction angle of a person while detecting a position of a predetermined body parts of the person based on the image information, and determines a looking-back motion when the face direction angle is larger than a predetermined angle and the predetermined body parts is present in a predetermined position.

Abstract: A determination device includes an receiver that receives a face image of a user from a camera whose direction of optical axis is predetermined with respect to a reference direction and a determiner that determines the face direction of the user depending on whether or not the reliability of a face direction calculated based on the face image and a learning model. The determiner determines the face direction depending on whether or not the reliability is greater than a first threshold value if the optical axis of the camera faces in a first direction and determines the face direction depending on whether or not the reliability is greater than a second threshold value different from the first threshold value if the optical axis faces in a second direction different from the first direction.