基于FPGA的图像采集与VGA显示系统

针对传统的PCI图像采集卡的弊端,利用Altera公司的DE2开发平台,设计了基于现场可编程门阵列(FPGA)的图像采集与VGA显示系统。该系统以嵌入了NiosⅡ软核的可编程逻辑芯片FPGA作为控制器,以图像传感器、数字存储器、视频D/A转换器、VGA显示接口等作为FPGA外设,利用可编程片上系统(SOPC)技术实现对FPGA及其外设的编程与控制,最终实现对实时图像的采集、处理与显示。设计结果表明,利用SOPC技术实现的电子系统具有设计方法灵活高效、可移植性强、易于实现高速数据采集、通用性好等优势。

Image acquisition and VGA display system based on FPGA

Concerning the drawbacks of traditional PCI frame grabber, using Altera's DE2 development platform, image acquisition and VGA display system of programmable logic chip based on Field-Programmable Gate Array (FPGA) were designed. This system used the programmable logic chip FPGA which was in-built into soft-core NiosⅡ as the controller. The FPGA has image sensor, digital memory, video D/A converter and VGA display interface as its accessories. System used System On a Programmable Chip (SOPC) technology to obtain control and coding over FPGA and its accessories and eventually to acquire, process and display the real-time images. The design results prove that, the electronic system based on SOPC technique is flexible and efficient in terms of designing, ported strong, easy to achieve high-speed data acquisition, and it has high compatibility.