基于FPGA的一体化实时图像采集系统设计

为了通过CMOS图像探测器实时准确的获取图像,设计了一套基于FPGA结合SDRAM的实时图像采集系统。根据CMOS图像探测器输出图像格式的特点,选用了一片Xilinx公司FPGA作为硬件设计平台,使用Verilog-HDL硬件描述语言并采用自上而下的模块化设计对整个系统进行硬件描述,对输出图像格式重组、图像信息添加等功能进行了详细的设计。试验结果表明,所设计的图像采集系统在全帧模式、20 f·s-1的情况下可以实时稳定的实现图像的显示与存储,而且具有较好的通用性。

An Integrative Design of Image Acquisition System Based on FPGA

In order to obtain real-time and precision image from CMOS image sensor, an improved real-time data acquisition system is designed based on the combinatiom of FPGA and SDRAM. Based on CMOS image sensor, one Field Programmable Gate Array （FPGA） is chosen as the hardware design platform, and the language is described by using Verilog-HDL and the whole system was described by using the modularizatiom from top to bottom. Experimental results show that continuous and real-time full resolution data could be achieved at speed 20 f·s-1. The system can also be applied in many other applications with better flexibility.