Multi-channel video superimposition transmission method based on FC-AV protocol

A FC-AV, multi-channel video technology, applied to closed-circuit television systems, TVs, color TVs, etc., to achieve the effect of low-latency, long-distance lossless transmission

Inactive Publication Date: 2018-05-18
TIANJIN JINHANG COMP TECH RES INST
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[0005] The purpose of the present invention is: based on the rich interface resources and parallel processing capabilities of FPGA, to solve the superim

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  • Multi-channel video superimposition transmission method based on FC-AV protocol
  • Multi-channel video superimposition transmission method based on FC-AV protocol

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[0029] In order to make the purpose, content, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0030] The overall block diagram of the system of the embodiment of the present invention is as follows figure 1 As shown, the system includes: video input module, DDR3 storage module, video overlay module, asynchronous FIFO module, video output module and SFP photoelectric module; multiple video signals are respectively transcoded into VESA standard digital video signals by corresponding video input modules , Multi-channel digital video signal input corresponding to the DDR3 memory module to achieve frame synchronization, the multi-channel digital video signal after frame synchronization is sent to the video overlay module for scaling processing, and video overlay is performed according to the position information, and the overlay is...

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Abstract

The invention discloses a multi-channel video superimposition transmission method based on an FC-AV protocol. Multiple channels of video sources can be collected, each path is amplified or shrunk by ascaling algorithm to adjust the proportion of the foreground in the background; the location of the foreground in the background can be adjusted by configuring parameters; and a foreground image is fused into a background image to achieve video superimposition fusion. According to the method disclosed by the invention, a superimposed video is packaged into a data frame based on the FC-AV protocoland is sent through an optical fiber, thereby achieving high-bandwidth, high-reliability, low-delay and long-distance lossless transmission of the video.

Description

technical field [0001] The invention belongs to the technical field of video processing and transmission, and relates to a multi-channel video overlay transmission method based on the FC-AV protocol. Background technique [0002] With the increasing demand for high-speed and high-quality video information on display and control platforms, video processing platforms have emerged as the times require. Considering the high bandwidth of the FC-AV protocol and the characteristics of lossless video transmission, and the performance of the FC switched network structure, it can meet the needs of high-speed, real-time and mission-critical digital audio and video transmission in the display and control system. [0003] In modern military command, it is not only necessary to process various information graphic images received, but also to comprehensively process input signals and data in various video formats, and to display multiple videos on the same terminal. However, at present, v...

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Application Information

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IPC IPC(8): H04N5/262H04N5/265H04N7/18
CPCH04N5/262H04N5/265H04N7/181
Inventor 张秀秀宋云鹏邢怀岗刘志杨
Owner TIANJIN JINHANG COMP TECH RES INST
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