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

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...

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 power and serial architecture of DSP or CPU processors, generally the most Only 2 channels of full HD video can be sampled at the same time, but multiple channels of full HD video signals cannot be sampled at the same time

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