基于FPGA和Qt的图像处理系统设计

针对CIS图像采集与处理系统实时性高、功耗低、体积小、图像处理类型多样的要求,设计了一种以FPGA为主处理器,Qt软件为协处理器的单通道CIS图像采集处理系统。利用FPGA集成度高、速度快的优点,完成图像的前端采集和预处理;Qt软件实时显示图像,并可根据需要调用其丰富的库资源,完成各种复杂的图像处理操作。系统有通用性强易于升级的特点,加载上相应的软硬件程序之后,可实现对图像的采样、预处理、传输、PC端实时显示及后续处理等功能。详细分析了系统的设计思路及实现方式,并在软硬件平台上进行了算法仿真和功能验证。实验结果表明：该系统实时性好,图像处理功能强大,灵活性好,能满足设计要求。

Design of Image Processing System Based on FPGA and Qt

Aiming at the requirements of a large amount of calculation,high real time,low consumption,and small volume for CIS acquisition and image processing system,a single channel CIS image acquisition and processing system,taking FPGA as a main processor and Qt as a coprocessor,is designed.The advantages of FPGA,such as high integrated and fast speed,are taken to accomplish image＇s advanced acquisition and preprocessing.Qt software can achieve and display image data on time.The rear-processing will be conducted simply by calling its rich library resources.With the characteristics of common application and convenient upgrade,the system can accomplish some useful functions such as image signal sampling,digital image preprocessing,data transmitting by USB,real time display by Qt software,and rear-processor after downloading corresponding program.The design idea and realizing method of the system are analyzed in this paper.Moreover,some algorithm simulation and function verification are performed on the hardware platform or the software one.The result shows that the system meets the design requirements with its perfect real time display and image processing,and flexible applicaiton.