Video frame synchronization method for multi-viewpoint 3D display system

Abstract

The invention discloses a video frame synchronization method for a numerous-viewpoint three-dimensional display system. The video frame synchronization method includes the following steps that a network delay estimation value is set in an initialized mode, and clock synchronization is kept in a timing mode; a master control node judges a work mode command type, influences on video frame synchronous collecting, playing and real-time playing by network delay between the master control node and equipment control nodes and the network delay between the equipment control nodes and a video collecting device are removed according to work modes, time allowance reserved through the master control node is used for ensuring that collecting or playing controlled by all the equipment control nodes is performed synchronously, and video frames corresponding to unified first-frame time are designated through a timestamp are used for playing in the playing process. The video frame synchronization method for the numerous-viewpoint three-dimensional display system has the advantages of being good in data frame synchronization performance, little in influence on synchronization errors by equipment response time and network transmission delay, wide in application range and good in universality.

Description

technical field [0001] The invention relates to the technical field of frame synchronization of a multi-viewpoint three-dimensional display system, in particular to a video frame synchronization method for a multi-viewpoint three-dimensional display system. Background technique [0002] Frame is the basic unit in video data processing. In video capture, the video data acquired by the capture device is cut into individual video frames, and subsequent processing such as transmission, compression, and playback is performed in units of frames. Sometimes, it is necessary to use multiple video capture devices for the same scene to collect video information at the same time, and synthesize the multi-channel acquisition results in the later stage, in order to obtain all-round information of the subject, such as the production of 3D movies, which is usually adopted in this way. In general, the videos captured by multiple video capture devices cannot be strictly synchronized, that is...

AI Technical Summary

Problems solved by technology

First of all, there are more reasons for video frames to be out of sync, including errors in acquisition equipment, delays in network transmission, out-of-sync clocks at each network node, etc.; secondly, due to the large amount of equipment, equipment that needs to be considered for frame synchronization due to the large amount of communication There are many numbers, and it may take a long time to perform a synchronization process, which will also affect the accuracy of synchronization

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