摘要
介绍一种在多点视频监控系统中基于FPGA的画面分割器的设计和实现方法,通过对视频画面分割器的系统结构的阐述,以及采用FPGA对ITU656格式的视频信号进行压缩和通过对双端口FIFO的读写操作,完成帧合成的软件设计过程.设计采用了无操作系统的纯硬件结构,利用FPGA的高速并行处理能力的优势,应用灵活的多画面合成方法实现了单屏幕上的实时多画面显示.
A design of video-multiplexer is introduced,which is realized by FPGA in the multi-point video moni-toring system.16 ITU656 video data are received in this system.According to the requirement of picture segmen-tation,video data stream is extracted and frame-synthesized effectively,and then it is converted into analog signal by video coding chip and output on display.Finally the multi-videos are shown in full screen or multi-window.Be-cause the high speed parallel process of FPGA,flexible synthesis of multi-video and digital image process algo-rithm is adopted,it achieved real time multi-video data display.
出处
《广西工学院学报》
CAS
2010年第2期81-85,共5页
Journal of Guangxi University of Technology
基金
广西工学院自然科学基金项目(院科自0977208)资助
关键词
视频合成
画面分割
多窗口显示
现场可编程门阵列
video synthesis
picture segmentation
multi-window display
field programmable gate array
