期刊论文

Heterogeneous Multi-core Method of Multi-channel Split Screen Transmission for 4K Video Stream

中文

数据采集与处理

1004-9037

2020

35

5

1001-1010

10.16337/j.1004-9037.2020.05.020

2014BAH28F04:国家科技支撑计划 15K009:湖南省教育厅科学研究项目 17K004:湖南省教育厅科学研究项目

本校为第一机构

针对视频多屏显示系统无法依据分屏数量进行超高清视频自适应分屏传输的问题,提出了异构多核的视频流传输方法。该方法首先采用基于ARM处理器的嵌入式系统实现多任务处理与实时监控;然后通过FPGA实现对视频流的接收、转换、处理及分屏输出显示的硬件加速。系统可以根据输入信号实时配置FPGA的工作参数,实现分辨率和分屏数量可变的超高清视频流分屏显示。最后采用Zynq UltraScale+MPSOC XCZU7EV多核异构处理器开发平台对本文系统进行测试,结果表明:4K视频多路分屏画面拼接无明显错位,同步一致,较好地满足了视频多路分屏显示要求。

In order to solve the problem that the multi-screen video display system cannot adapt to the multi-screen transmission of ultra-high-definition(UHD)video according to the number of split screens,a heterogeneous multi-core video streaming transmission method is proposed.First,the embedded system based on ARM is used to realize multi-task processing and real-time monitoring.Then FPGA realizes hardware acceleration of receiving,converting,processing and split-screen output display of video stream.The system can configure the working parameters of FPGA according to the input signal in real time to...