A video synchronization method based on camera shooting

Abstract

The present invention relates to the field of video information processing, and specifically discloses a camera-based video synchronization method, including: dividing the ultra-high-resolution video source into equal parts and placing small videos on different node machines, and the same frame of each small video Use the same number to identify; the master computer connected to the camera sends a command to all node machines, so that all node machines start to play the video at the same time; the camera starts to shoot the entire video screen synchronously, and analyzes whether the numbers of all frames are consistent; When the frame numbers are inconsistent, the master control terminal sends commands to the node machines with inconsistent frames to modify their refresh rate, and continuously modify the refresh rate to achieve the same frame number of all node machines on the same screen. The present invention performs video synchronization processing on whether the whole picture number of the video captured by the camera is consistent, reducing manual intervention; without using the network for communication, greatly reducing multi-machine synchronization problems caused by abnormal network communication and abnormal network response.

Description

technical field [0001] The present invention relates to the field of video information processing, and more specifically, to a camera-based video synchronization method. Background technique [0002] As the digital cinema playback system has higher and higher requirements for definition, the resolution of the output picture has far exceeded the output resolution of a computer or a display device, so it is often necessary to splice multiple devices together to create a super high How to ensure the synchronization of the images output by all devices has become a key issue. [0003] There are two main traditional methods: [0004] 1. Coordinate through the network or other communication methods to ensure that all machines draw a frame at the same time. The specific method is: there is a machine called the master in the system, which notifies all other machines to generate a certain frame of picture through the network. After all the machines are generated, they will not outpu...

AI Technical Summary

Problems solved by technology

[0006] When solving the traditional two methods, it is necessary to use the human eye to observe whether the entire picture is synchronized, and because the frame rate of video playback is fast, it is often difficult for the human eye to distinguish whether the video picture is synchronized, even if the human eye can easily see that the continuous frames are not synchronized, it is still possible. Video synchronization can only be adjusted manually by stopping video playback, and rarely use fully intelligent methods for synchronous playback

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