Four-way full-high-definition video processing circuit based on field programmable gate array (FPGA)

A high-definition video and processing circuit technology, applied in the field of FPGA, can solve the problems of video signal sampling that cannot be multi-channel full high-definition, limited DSP or CPU processor computing power and serial architecture, etc., to achieve easy design and implementation, low cost , the effect of system stability

Active Publication Date: 2015-05-06
GUANGZHOU HISON COMP TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the picture-in-picture and picture-outside-picture video processing technologies in most full-HD recording and broadcasting devices are usually implemented by software design, but limited by the computing

Method used

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  • Four-way full-high-definition video processing circuit based on field programmable gate array (FPGA)
  • Four-way full-high-definition video processing circuit based on field programmable gate array (FPGA)

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Embodiment Construction

[0028] like figure 1 Shown, a kind of four-way full high-definition video processing circuit based on FPGA, it comprises FPGA chip, and described FPGA chip comprises storage controller, channel selection switch module, the first video layer overlay module, the second video layer overlay module, the first Three video layer overlay module, fourth video layer overlay module, video timing control module, video synthesis module, video mode parameter controller, four video input processing modules and four video amplification modules;

[0029] The output ends of the four video input processing modules are all connected to the input ends of the storage controller, and the output ends of the storage controller are respectively connected to the first input ends of the four video amplification modules, and the four video amplification modules The output ends of all are connected with the first input end of the channel selection switch module, and the output ends of the channel selection...

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Abstract

The invention disclosers a four-way full-high-definition video processing circuit based on a field programmable gate array (FPGA). The circuit comprises an FPGA chip. The FPGA chip comprises a storage controller, a channel selection switch module, a first video layer overlaying module, a second video layer overlaying module, a third video layer overlaying module, a fourth video layer overlaying module, a video time sequence control module, a video composition module, a video mode parameter controller, four video input processing modules and four video amplifying modules. The picture-in-picture and picture-out-picture video processing circuit based on the FPGA chip is utilized, the requirements for collecting multiple ways of full-high-definition video signals simultaneously are met, and the circuit further has the advantages of being simple in structure, easy to design and achieve and the like. The four-way full-high-definition video processing circuit based on the FPGA can be widely applied to the field of high-definition video processing.

Description

technical field [0001] The invention relates to FPGA technology, in particular to an FPGA-based four-way full high-definition video picture-in-picture and picture-outside picture processing circuit. Background technique [0002] Explanation of technical terms [0003] PIP: Picture-in-picture, which uses digital image processing technology to simultaneously display multiple pictures on the same screen, that is, insert one or more compressed sub-pictures on the main picture for normal viewing, so as to enjoy the main picture. While monitoring other screens, the picture-in-picture is to place the sub-screen in the main screen. [0004] POP: Picture outside picture, its principle is the same as picture in picture, the difference is that picture outside picture is to place the sub picture outside the main picture. [0005] DSP: Abbreviation for digital signal processor, that is, digital signal processor. [0006] CPU: The abbreviation of Central Processing Unit, that is, the c...

Claims

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Application Information

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IPC IPC(8): H04N5/45H04N5/262
Inventor 葛海玉郝禄国杨琳曾文彬
Owner GUANGZHOU HISON COMP TECH
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