基于fpga的vga和hdmi视频拼接系统设计.pdf

基于 FPGA 的VGA 和 HDMI 视频拼接系统设计 摘 要 随着图像显示技术的快速发展，图像用户界面和人机交互界面正朝着智能化、高速 化、大屏幕化方向迈进。目前图像显示系统多数是采用早期的专用处理芯片，其运算速 度和设计灵活性一般都较低。 FPGA 的发展为图像存储与显示系统的高速和高集成度提供了新的方法和解决思路， FPGA 本身拥有着强大的逻辑资源，并利用片外的配置资源和模块化的设计思路，可实现 图像存储与显示系统。 论文采用 Altera 公司推出的 Cyclone IV FPGA，结合该系列芯片的结构特点，对其 功能以及配置方式做了详细的说明，并简要的介绍了系统设计中所涉及的软硬件开发环 境和显示原理，重点研究基于 FPGA 的图像信号剪切、存储和显示，系统采用基于 FPGA 的高速阵列的信号处理模式，提出了一种基于硬件的图像存储与显示的视频拼接显示方 法。 该设计以 FPGA 为数字处理的核心，分为图像处理模块、图像存储模块和图像显示 模块，通过处理输入的视频信号，把视频剪切成两部分，分别以 VGA 和 HDMI 在两个显 示器里分别显示，实现了视频的拼接显示功能。 关键字：FPGA VGA HDMI 拼接显示 VGA and HDMI video splicing FPGA-based display ABSTRACT As the image shows the rapid development of technology, graphical user interface and interactive interface is moving intelligent, high-speed, large screen direction. At present, the majority of the image display system is the use of dedicated processing chip early, usually its speed of operation and design flexibility are low. FPGA development for high-speed and highly integrated image storage and display system provides a new approach and solution ideas, FPGA itself has a powerful logic resources and use off-chip resource allocation and modular design ideas can be realized Images storage and display system. Thesis, Altera has introduced Cyclone IV FPGA, combined with the structural characteristics of the chips and their functions as well as a detailed configuration instructions, and a brief description of the system involved in the design of hardware and software development environment and display principle focus Cut image signal based on FPGA, storage and display, the system uses the signal processing FPGA-based high-speed mode arrays, we propose