Method for compressing videos and playing composite images of the videos

1. A computer-implemented video compressing method, comprising:

obtaining videos from a storage device, wherein the videos comprise a plurality of time layers and angles;

selecting a main frame from the videos at each time layer and each angle, and storing frame information of the main frame in the storage device;

selecting a new main frame after each of a plurality of time intervals and each of a plurality of angle intervals, and storing frame information of the new main frame in the storage device; and

obtaining frames between two adjacent main frames from the videos at each time layer and each angle, and storing different pixels between each of the obtained frames and a previous main frame of the two adjacent main frames, so as to obtain composite images of the videos.

2. The method according to claim 1 , wherein the videos are captured by a plurality of lenses of a camera array at different angles.

3. The method according to claim 2 , wherein the plurality of lenses of the camera array are arranged circularly at a constant distance or arranged circularly at varying distances.

4. The method according to claim 2 , wherein the plurality of lenses of the camera array are arranged in a circular curve at a constant distance or arranged in a circular curve at varying distances.

5. The method according to claim 1 , wherein the frame information of the main frame comprises a gray value of each pixel in a frame and coordinates of each pixel.

6. The method according to claim 1 , wherein the step of selecting the main frame from the videos at each time layer and each angle comprises:

selecting a first frame as the main frame from the videos at each angle; and

selecting a central frame as the main frame from the videos at each time layer.

7. The method according to claim 6 , wherein the step of selecting the new main frame after each of the plurality of time intervals and each of the plurality of angle intervals comprises:

selecting the new main frame beginning from the first frame of the videos at each angle after each time interval and angle interval; and

selecting the new main frame beginning from the central frame of the videos at each time layer after the each time interval and angle interval.

8. The method according to claim 7 , wherein each time interval and each angle interval are a fixed time interval and a fixed angle interval, or a non-fixed time interval and a non-fixed angle interval.

9. The method according to claim 7 , wherein the two adjacent main frames comprise two adjacent main frames of the videos at each angle and two adjacent main frames of the videos at each time layer.