Video distribution apparatus, video distribution method and program
A video distribution device according to an embodiment is a video distribution device that distributes videos from a plurality of cameras installed in each of a plurality of vehicles that perform autonomous driving to a terminal, and includes a probability of collision calculating unit that calculates a probability of collision indicating a probability of the vehicles colliding with an object by a predetermined time of day, a selecting unit that selects, out of the videos of the plurality of cameras, video from a camera installed in a vehicle of which the probability of collision is highest, and a control unit for setting video quality of the video of the selected camera to be high.
1. A video distribution device that distributes, to a terminal, one or more videos from a plurality of cameras installed in each of a plurality of vehicles that perform autonomous driving, the video distribution device comprising:
a probability of collision calculating unit, implemented using one or more computing devices, configured to calculate a probability of collision indicating a probability of the plurality of vehicles colliding with an object by a predetermined time of day;
a selecting unit, implemented using one or more computing devices, configured to select, among the one or more videos from the plurality of cameras, a video from a camera installed in a vehicle of which the probability of collision is highest; and
a controller configured to increase at least one of a frame rate or a resolution of the camera installed in the vehicle of which the probability of collision is highest to thereby increase video quality of the selected video.
2. The video distribution device according to claim 1 , wherein the controller is configured to distribute, among the one or more videos from the plurality of cameras, the selected video to the terminal.
3. The video distribution device according to claim 1 , wherein the controller is configured to reduce video quality of remaining videos among the one or more videos in accordance with communication quality between a communication network and the plurality of vehicles.
4. The video distribution device according to claim 1 , further comprising:
a probability of presence calculating unit, implemented using one or more computing devices, configured to calculate a probability of presence indicating a probability of the object being present in a predetermined region by the predetermined time of day,
wherein the probability of collision calculating unit is configured to calculate, for each of the plurality of vehicles, the probability of collision, using collision permissible/impermissible information decided regarding each type of the object in advance.
5. The video distribution device according to claim 4 , wherein the probability of collision calculating unit is configured to:
calculate the probability of collision without taking into consideration the probability of presence of the object in a case in which the collision permissible/impermissible information regarding the object is collision permissible, and
calculate the probability of collision taking into consideration the probability of presence of the object in a case in which the collision permissible/impermissible information regarding the object is collision impermissible.
6. The video distribution device according to claim 4 , wherein the video distribution device is configured to calculate the probability of presence by the probability of presence calculating unit each time of calculating the probability of collision by the probability of collision calculating unit.
7. A video distribution method of a video distribution device that distributes, to a terminal, one or more videos from a plurality of cameras installed in each of a plurality of vehicles that perform autonomous driving, the video distribution method comprising:
calculating a probability of collision indicating a probability of the plurality of vehicles colliding with an object by a predetermined time of day;
selecting, among the one or more videos from the plurality of cameras, a video from a camera installed in a vehicle of which the probability of collision is highest; and
increasing at least one of a frame rate or a resolution of the camera installed in the vehicle of which probability of collision is highest to thereby increase video quality of the selected video.
8. The video distribution method according to claim 7 , further comprising distributing, among the one or more videos from the plurality of cameras, the selected video to a terminal.
9. The video distribution method according to claim 7 , further comprising reducing video quality of remaining videos among the one or more videos in accordance with communication quality between a communication network and the plurality of vehicles.
10. The video distribution method according to claim 7 , further comprising:
calculating a probability of presence indicating a probability of the object being present in a predetermined region by the predetermined time of day,
wherein calculating the probability of collision comprises calculating, for each of the plurality of vehicles, the probability of collision, using collision permissible/impermissible information decided regarding each type of the object in advance.
11. The video distribution method according to claim 10 , wherein calculating the probability of collision comprises:
calculating the probability of collision without taking into consideration the probability of presence of the object in a case in which the collision permissible/impermissible information regarding the object is collision permissible, and
calculating the probability of collision taking into consideration the probability of presence of the object in a case in which the collision permissible/impermissible information regarding the object is collision impermissible.
12. The video distribution method according to claim 10 , wherein calculating the probability of presence comprises calculating the probability of presence each time of calculating the probability of collision.
13. A non-transitory computer recording medium storing a program, wherein execution of the program causes one or more computers to perform operations comprising:
calculating a probability of collision indicating a probability of a plurality of vehicles colliding with an object by a predetermined time of day;
selecting, among one or more videos from a plurality of cameras installed in each of the plurality of vehicles, a video from a camera installed in a vehicle of which the probability of collision is highest; and
increasing at least one of a frame rate or a resolution of the camera installed in the vehicle of which probability of collision is highest to thereby increase video quality of the selected video.
14. The non-transitory computer recording medium according to claim 13 , wherein the operations further comprise distributing, among the one or more videos from the plurality of cameras, the selected video to a terminal.
15. The non-transitory computer recording medium according to claim 13 , wherein the operations further comprise reducing video quality of remaining videos among the one or more videos in accordance with communication quality between a communication network and the plurality of vehicles.
16. The non-transitory computer recording medium according to claim 13 , wherein the operations further comprise:
calculating a probability of presence indicating a probability of the object being present in a predetermined region by the predetermined time of day, and
wherein calculating the probability of collision comprises calculating, for each of the plurality of vehicles, the probability of collision, using collision permissible/impermissible information decided regarding each type of the object in advance.
17. The non-transitory computer recording medium according to claim 16 , wherein calculating the probability of collision comprises:
calculating the probability of collision without taking into consideration the probability of presence of the object in a case in which the collision permissible/impermissible information regarding the object is collision permissible, and
calculating the probability of collision taking into consideration the probability of presence of the object in a case in which the collision permissible/impermissible information regarding the object is collision impermissible.
18. The non-transitory computer recording medium according to claim 16 , wherein calculating the probability of presence comprises calculating the probability of presence each time of calculating the probability of collision.