Synchronization method for eliminating jitter of inter-video video data of stereo video collecting and synthetizing system

Abstract

The invention discloses a synchronization method for eliminating jitter of inter-video video data of a stereo video collecting and synthetizing system, which comprises the following steps of: firstly, identifying two paths of input high-definition video data, judging whether the two paths of the input high-definition video data are effective video data, and calculating delayed data of the high-definition video data; after detecting an effective input, storing the effective video data into a data buffer area, wherein a secondary buffer scheduling strategy takes negative feedback as a principle so that the capacity of the buffer area can be dynamically regulated; finally, reading the synchronized stereo video data from data buffer area. According to the method provided by the invention, complete and stable frame synchronization of the two paths of the stereo video data can be realized, and no de-synchronization is caused by influences of a clock jitter and a transmission chain on the premise of stable signal connection after the synchronization. The method can be used for automatically identifying an arrival sequence of signals of the two paths of the stereo video data and do not break a constitution format of the high-definition video data. All functions of a synchronization scheme for eliminating the jitter of the inter-video video data can be realized in an FPGA (Field Programmable Gate Array).

Description

technical field [0001] The invention relates to a stereoscopic video acquisition and synthesis system, in particular to a method for realizing debounce synchronization of inter-view video data when two-way stereoscopic video input and synchronous frame format data are synthesized. Background technique [0002] At present, two-channel stereoscopic video generally adopts a frame-synchronized parallel (Side-by-Side, SbS) or top-and-bottom (Top-and-Bottom, TaB) format when encoding and transmitting, and the parallel format is currently adopted by the mainstream of stereoscopic TV. Stereoscopic video format. [0003] For applications such as live shooting of dual-channel stereoscopic video, it is necessary to have a device capable of synchronously capturing the video output from the dual-channel camera in real time and synthesizing the specified synchronous frame format. When collecting and synchronizing frame formats, the input dual-channel high-definition stereoscopic video si...

AI Technical Summary

Problems solved by technology

If this unstable video data delay is not dealt with, it will cause great destructive consequences to the working status of the dual-channel stereoscopic video frame synchronous synthesis equipment, and will directly cause pixels to appear in the image output by the dual-channel stereoscopic video synthesis equipment. Misalignment, color deviation and other consequences, even the phenomenon that the correctly synthesized two-way stereo video cannot be output, resulting in the failure of the stereo video to work normally with the synthesis equipment

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