Information processing apparatus, lighting device, and non-transitory computer readable medium storing program

1. An information processing apparatus comprising:

a processor configured to

acquire, among a plurality of images obtained by periodically capturing one or more lighting devices that repeat blinking according to a determined pattern, a first image and a second image in which a lighted lighting device is captured;

in response to a distance from a position of the device indicated by the first image to a position of the device indicated by the second image being within a range corresponding to a period from a time of capturing the first image to a time of capturing the second image, regard the lighting device indicated by the first image and the lighting device indicated by the second image are the same; and

specify the pattern of the lighting device that has been regarded the same.

2. The information processing apparatus according to claim 1 ,

wherein the processor is configured to, upon a determination that the specified pattern does not satisfy a determined condition, change the first image to another image in which a lighted lighting device is captured among the plurality of images.

3. The information processing apparatus according to claim 2 ,

wherein the another image is not used for the specifying of the pattern.

4. The information processing apparatus according to claim 3 ,

wherein the condition is inclusion of a predetermined check pattern.

5. The information processing apparatus according to claim 4 ,

wherein the processor is configured to regard, in response to the period from the time of capturing the first image to the time of capturing the second image exceeding a determined time and no other image of the lighting device indicated by the first image being acquired in the period, the first image and the second image does not have the same lighting device.

6. The information processing apparatus according to claim 3 ,

wherein the processor is configured to regard, in response to the period from the time of capturing the first image to the time of capturing the second image exceeding a determined time and no other image of the lighting device indicated by the first image being acquired in the period, the first image and the second image does not have the same lighting device.

7. The information processing apparatus according to claim 3 , wherein the processor is configured to:

acquire, after the second image is captured, a third image in which a lighted lighting device is captured,

in response to a distance from the position of the lighting device indicated by the second image to a position of the lighting device indicated by the third image being within a range corresponding to a period from the time of capturing the second image to a time of capturing the third image, regard the lighting device indicated by the first image, the lighting device indicated by the second image, and the lighting device indicated by the third image are the same, and

specify the pattern of the lighting device that has been determined to be the same.

8. The information processing apparatus according to claim 2 ,

wherein the condition is inclusion of a predetermined check pattern.

9. The information processing apparatus according to claim 8 ,

wherein the processor is configured to regard, in response to the period from the time of capturing the first image to the time of capturing the second image exceeding a determined time and no other image of the lighting device indicated by the first image being acquired in the period, the first image and the second image does not have the same lighting device.

10. The information processing apparatus according to claim 8 , wherein the processor is configured to:

acquire, after the second image is captured, a third image in which a lighted lighting device is captured,

in response to a distance from the position of the lighting device indicated by the second image to a position of the lighting device indicated by the third image being within a range corresponding to a period from the time of capturing the second image to a time of capturing the third image, regard the lighting device indicated by the first image, the lighting device indicated by the second image, and the lighting device indicated by the third image are the same, and

specify the pattern of the lighting device that has been determined to be the same.

11. The information processing apparatus according to claim 2 ,

wherein the processor is configured to regard, in response to the period from the time of capturing the first image to the time of capturing the second image exceeding a determined time and no other image of the lighting device indicated by the first image being acquired in the period, the first image and the second image does not have the same lighting device.

12. The information processing apparatus according to claim 2 , wherein the processor is configured to:

acquire, after the second image is captured, a third image in which a lighted lighting device is captured,

in response to a distance from the position of the lighting device indicated by the second image to a position of the lighting device indicated by the third image being within a range corresponding to a period from the time of capturing the second image to a time of capturing the third image, regard the lighting device indicated by the first image, the lighting device indicated by the second image, and the lighting device indicated by the third image are the same, and

specify the pattern of the lighting device that has been determined to be the same.

13. The information processing apparatus according to claim 1 ,

wherein the processor is configured to regard, in response to the period from the time of capturing the first image to the time of capturing the second image exceeding a determined time and no other image of the lighting device indicated by the first image being acquired in the period, the first image and the second image does not have the same lighting device.

14. The information processing apparatus according to claim 1 , wherein the processor is configured to:

acquire, after the second image is captured, a third image in which a lighted lighting device is captured,

in response to a distance from the position of the lighting device indicated by the second image to a position of the lighting device indicated by the third image being within a range corresponding to a period from the time of capturing the second image to a time of capturing the third image, regard the lighting device indicated by the first image, the lighting device indicated by the second image, and the lighting device indicated by the third image are the same, and

specify the pattern of the lighting device that has been determined to be the same.

15. The information processing apparatus according to claim 1 ,

wherein the processor is configured to specify identification information for identifying the lighting device based on the specified pattern.

16. A lighting device comprising:

a light; and

a processor configured to:

blink the light according to a pattern corresponding to identification information of the lighting device;

keep the light on for a first determined time or longer; and

keep the light off such that a period from a light-off of the light to a subsequent light-on of the light does not exceed a second determined time,

wherein the second determined time is determined according to a speed at which the lighting device is movable.

17. The lighting device according to claim 16 , further comprising:

a memory that stores a predetermined check pattern,

wherein the pattern includes the check pattern.

18. The lighting device according to claim 16 ,

wherein the first determined time is an exposure time of an imaging device that images the lighting device.

19. The lighting device according to claim 16 ,

wherein the processor is configured to blink the lighter according to the pattern, then keep the light off for a light-off time that is longer than the second time, and then blink the light repeatedly according to the pattern.

20. A non-transitory computer readable medium storing a program causing a processor to execute:

acquiring, among a plurality of images obtained by periodically capturing one or more lighting devices that repeat blinking according to a determined pattern, a first image and a second image in which a lighted lighting device is captured;

in response to a distance from a position of the device indicated by the first image to a position of the device indicated by the second image being within a range corresponding to a period from a time of capturing the first image to a time of capturing the second image, regarding the lighting device indicated by the first image and the lighting device indicated by the second image are the same; and

specifying the pattern of the lighting device that has been regarded the same.