Multi-screen video splicing method and device

A video splicing and multi-picture technology, applied in the field of splicing walls, can solve the problem of high cost and achieve the effect of low cost, high controllability, simple PCB wiring and interface

Inactive Publication Date: 2017-07-18
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a multi-screen video splicing method and device for the above-mentioned high cost problem

Method used

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  • Multi-screen video splicing method and device
  • Multi-screen video splicing method and device

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Embodiment Construction

[0026] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] see figure 1 Shown, a kind of multi-screen video splicing method comprises the following steps:

[0028] Step S101, collecting video signals, performing decoding and conversion to obtain video interleaved signals.

[0029] As a better embodiment, the video interleaving signal obtained after decoding and converting in the present invention can be in BT.656 format, that is, after receiving the composite video signal input from DVD and VCD, it is decoded and converted into BT.656 format Digital signal. Taking four-screen video splicing as an example, since the BT.656 single-channel sampling clock frequency is usually 27Mhz output, in this embodiment, it is necessary to process 16 channels of CVBS signals (Composite Video Broadcast Signal, composite video broadcast signal), FPGA (Field- Programmable Gate Array (...

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Abstract

The present invention provides a multi-screen video splicing method and device. The method includes the following steps: collecting video signals, decoding and converting them to obtain video interleaved signals; separating and analyzing the video interleaved signals to obtain synchronous signals and multi-channel Video interleaving signal, and performing interleaving processing on the multi-channel video interleaving signal; performing deinterlacing processing on the video signal after interleaving processing; calculating vertical resolution according to the synchronization signal, and judging deinterlacing processing according to the vertical resolution Whether the final video signal is a 480p system; if so, then convert the video signal of the 480p system to the video signal of the 576p system; perform multi-picture video splicing according to the video signal of the 576p system. The method and the device of the present invention can use a piece of FPGA to realize splicing and displaying of multi-channel video signals, with low cost and large amount of collected information; moreover, the PCB wiring and interface are simple and the controllability is high.

Description

technical field [0001] The invention relates to the field of splicing walls, in particular to a multi-screen video splicing method and a multi-screen video splicing device. Background technique [0002] In recent years, video surveillance systems have been widely used in many occasions, effectively replacing personnel inspections. Due to the wide range of monitoring, the application of multi-screen processors is becoming more and more common. If a four-screen processor is used, four targets can be monitored simultaneously on one monitor. Generally speaking, in addition to the function of multi-screen image stitching, the multi-screen video processor must also support more acquisition video input, multi-screen switching position, multi-screen equal width and height processing, deinterlacing and video character superposition display, etc. Function. [0003] At present, there are many multi-screen processors implemented by dedicated DSP (Digital Signal Processor, digital sig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/01H04N7/18
Inventor 鲜燚曹捷
Owner GUANGDONG VTRON TECH CO LTD
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