Imaging device, imaging method, and program

1. An imaging device comprising:

an image sensor that captures a video; and

a processor configured to

extract a first frame from a plurality of frames constituting the video captured by the image sensor to generate at least one first image file;

generate at least one video file constituted of a plurality of frames including the first frame from the video; and

store the at least one video file, the at least one first image file, and additional information indicating a position of the first frame in the at least one video file,

wherein the processor is further configured to

receive an operation of selecting a reference image from the at least one first image file, and

extract a second frame from the plurality of frames constituting the at least one video file to generate a second image file, based on the selected reference image.

2. The imaging device according to claim 1 ,

wherein the first image file is a first static image file, and the second image file is a second static image file.

3. The imaging device according to claim 2 ,

wherein the additional information includes information that identifies one of the first static image file and the video file in a case where the other is specified.

4. The imaging device according to claim 1 ,

wherein the additional information further includes a file name of the video file and a file name of the first image file.

5. The imaging device according to claim 1 ,

wherein the processor is further configured to store the additional information in the video file.

6. The imaging device according to claim 1 ,

wherein the processor is further configured to store the additional information in the first image file.

7. The imaging device according to claim 1 ,

wherein the processor is further configured to store the first image file and the video file in the same folder.

8. The imaging device according to claim 2 ,

wherein the processor is further configured to cause a display device to display image data of the first static image superimposing information indicating that the first static image file is extracted from the plurality of frames constituting the video file on the image data.

9. The imaging device according to claim 2 ,

wherein the processor is further configured to

cause a display device to display image data of frames stored in a time range including a frame of the reference image from the plurality of frames constituting the video file,

receive the operation of selecting static image extracting image data from the displayed image data, and

extract the frame corresponding to the selected static image extracting image data among the plurality of frames as the second frame to generate the second static image file.

10. The imaging device according to claim 2 ,

wherein the image data of the first static image file has a higher image quality than image data of the plurality of frames constituting the video file, and

the processor is further configured to use the first static image file to generate the second static image file in a case where a difference between a time at which the second frame is stored and a time at which the first frame is stored is equal to or less than a threshold value.

11. The imaging device according to claim 1 ,

wherein the processor is further configured to add a difference between image data of the first frame and the second frame of the video file to the image data of the first image file to generate the second image file.

12. The imaging device according to claim 2 ,

wherein the processor is further configured to

designate the first static image file, and

cause a display device to display image data of a plurality of frames constituting the video file with reference to the additional information in a case where the first static image file is designated.

13. The imaging device according to claim 12 ,

wherein the processor is further configured to

receive an operation of selecting one or more pieces of image data from the displayed image data, and

extract a frame of the at least one video file corresponding to the selected image data, to generate a static image file.

14. The imaging device according to claim 1 ,

wherein the processor is further configured to store the at least one first image file in response to an input from an outside.

15. The imaging device according to claim 1 :

wherein the processor is further configured to

detect a frame in which an event occurs from the plurality of frames constituting the video,

generate the first image file according to the detection.

16. The imaging device according to claim 2 ,

wherein the processor is further configured to generate the first static image file by a circuitry that is at least partially independent of a circuitry that generates the video file.

17. The imaging device according to claim 2 ,

wherein the image data of the first static image file has a higher image quality than image data of the plurality of frames constituting the video file.

18. The imaging device according to claim 3 ,

wherein the image data of the first static image file has a higher image quality than image data of the plurality of frames constituting the video file.

19. An imaging method comprising:

capturing a video;

extracting a first frame from a plurality of frames constituting the captured video to generate at least one first image file;

generating at least one video file constituted of a plurality of frames including the first frame from the video;

storing the at least one video file, the at least one first image file, and additional information indicating a position of the first frame in the at least one video file;

receiving an operation of selecting a reference image from the at least one first image file; and

extracting a second frame from the plurality of frames constituting a plurality of the video files to generate a second image file, based on the selected reference image.

20. A non-transitory computer readable medium for storing a program causing a computer to execute the imaging method according to claim 19 .