Vehicle projection control device, vehicle projection system, vehicle projection control method, and computer-readable storage medium

1. A vehicle projection control device, comprising:

an occupant detection unit configured to detect an occupant on a vehicle;

a traveling information acquisition unit configured to acquire traveling information of the vehicle and information indicating that the vehicle is traveling;

a projection control unit configured to, when the occupant detection unit has detected the occupant and the traveling information acquisition unit has acquired the information indicating that the vehicle is traveling, cause a projection unit to project the traveling information acquired by the traveling information acquisition unit, the projection unit being configured to project a video in a direction towards a body of the occupant on the vehicle; and

a head detection unit configured to detect a head of the occupant on the vehicle in a projection direction of the projection unit,

wherein the projection control unit is configured to change a projection location of the traveling information acquired by the traveling information acquisition unit, based on a location of the head detected by the head detection unit.

2. The vehicle projection control device according to claim 1 , wherein

the head detection unit is configured to detect the head of the occupant on the vehicle from a captured image of the occupant on the vehicle, and

the projection control unit is configured to, when the head detection unit detects the head of the occupant on the vehicle at a location inclined in a horizontal direction or at a shifted location, change the projection location of the traveling information acquired by the traveling information acquisition unit.

3. The vehicle projection control device according to claim 1 , wherein the head detection unit is configured to detect that the head of the occupant on the vehicle is at a location inclined in a horizontal direction or at a shifted location with respect to a center line of an imaging range of a captured image of the occupant on the vehicle.

4. The vehicle projection control device according to claim 1 , further comprising:

an indicator detection unit configured to detect an indicator indicating a projection range in a projection direction of the projection unit,

wherein the projection control unit is configured to cause the projection unit to project the traveling information acquired by the traveling information acquisition unit in a range defined by the indicator detected by the indicator detection unit.

5. The vehicle projection control device according to claim 1 , wherein

the traveling information acquisition unit is configured to acquire information indicating that the vehicle stops or is reducing speed, as the traveling information of the vehicle, and

the projection control unit is configured to, when the traveling information acquisition unit acquires the information indicating that the vehicle stops or is reducing speed, cause the projection unit to project video indicating that the vehicle stops or is reducing speed in the direction towards the body of the occupant on the vehicle.

6. The vehicle projection control device according to claim 1 , wherein

the traveling information acquisition unit is configured to acquire information indicating that the vehicle is changing direction, as the traveling information of the vehicle, and

the projection control unit is configured to, when the traveling information acquisition unit acquires the information indicating that the vehicle is changing direction, cause the projection unit to project a video indicating a changing direction in the direction towards the body of the occupant on the vehicle.

7. A vehicle projection system, comprising:

the vehicle projection control device according to claim 1 ; and

the projection unit.

8. A vehicle projection control method, comprising:

detecting an occupant on a vehicle;

acquiring traveling information of the vehicle and information indicating that the vehicle is traveling;

causing, when the occupant has been detected and the information indicating that the vehicle is traveling has been acquired, a projection unit to project the acquired traveling information, the projection unit being configured to project a video in a direction towards a body of the occupant on the vehicle; and

detecting a head of the occupant on the vehicle in a projection direction of the projection unit, wherein

the causing the projection unit to project the acquired traveling information includes changing a projection location of the acquired traveling information based on a location of the detected head.

9. A non-transitory computer-readable storage medium storing a computer program causing a computer to execute:

detecting an occupant on a vehicle;

acquiring traveling information of the vehicle and information indicating that the vehicle is traveling;

causing, when the occupant has been detected and the information indicating that the vehicle is traveling has been acquired, a projection unit to project the acquired traveling information, the projection unit being configured to project a video in a direction towards a body of the occupant on the vehicle; and

detecting a head of the occupant on the vehicle in a projection direction of the projection unit, wherein

the causing the projection unit to project the acquired traveling information includes changing a projection location of the acquired traveling information based on a location of the detected head.