Systems and methods for video splicing and displaying

A device having a plurality of data acquisition ports, a plurality of output ports, and at least one processor having a master acquisition control controlling the acquisition ports and a master display control controlling the output ports for synchronous video display on at least one display, the device being configured to:

• receive a channel of video signal from each data acquisition port of the plurality of data acquisition ports during a time interval, each channel of video signal comprising a plurality of video frames captured during the time interval;
• assign a count value for each video frame of the channel of video signal as synchronization information for each video frame of the channel of video signal to form a pool of video frames each corresponding to a count value;
• perform a self-correction when an abnormal event associated with a display control device occurs, the self-correction comprising:
• determining that the differences between count values of any two video frames recorded during the time interval is larger than 1;
• determining that a difference between a largest acquisition time and a smallest acquisition time is smaller than one half of a time interval between two consecutive video frames, and
• resetting the count value at each channel of the plurality of data acquisition ports before assigning a new synchronized count value to each channel;
• select video frames with the same count value from the pool of video frames as synchronized video frames;
• and
• transmit, through the plurality of output ports, the synchronized video frames for synchronous display on the at least one display.

A non-transitory computer readable medium, comprising at least one set of instructions for synchronous video display on the at least one display, wherein when executed by a device including a plurality of data acquisition ports, a plurality of output ports, and at least one processor having a master acquisition control controlling the acquisition ports and a master display control controlling the output ports, the at least one set of instructions causes the device to perform a method, the method comprising:

• receiving a channel of video signal from each data acquisition port of the plurality of data acquisition ports during a time interval, each channel of video signal comprising a plurality of video frames captured during the time interval;
• assigning a count value for each video frame of the channel of video signal as synchronization information for each video frame of the channel of video signal to form a pool of video frames each corresponding to a count value;
• performing a self-correction when an abnormal event associated with a display control device occurs, the self-correction comprising:
• determining that the differences between count values of any two video frames recorded during the time interval is larger than 1;
• determining that a difference between a largest acquisition time and a smallest acquisition time is smaller than one half of a time interval between two consecutive video frames, and
• resetting the count value at each channel of the plurality of data acquisition ports before assigning a new synchronized count value to each channel;
• selecting video frames with the same count value from the pool of video frames as synchronized video frames;
• and
• transmitting, through the plurality of output ports, the synchronized video frames for synchronous display on the at least one display.