基于双NiosⅡ处理器的实时图像采集系统

摘要

In order to solve the problem that ASIC system is not flexible,and algorithm upgrades and updates can’t be car⁃ried out,a real⁃time image acquisition system based on double Nios Ⅱ processor was designed. The management functions and the man⁃machine interface were completed with the host processor,the image codec and the data transmission between computers were completed with the co⁃processor. The topology and hardware system are prone to upgrade and update,and the system cost is reduced greatly.%　　在视频压缩编码算法的硬件实时实现中，针对专用芯片系统不够灵活、无法进行算法升级与更新等问题，利用双Nios Ⅱ处理器，主处理器完成管理功能和处理人机交互界面，协处理器做图像的编解码以及完成与计算机之间的数据传输，通过软硬件设计开发，实现实时图像采集系统。该方案算法易于升级，而且硬件系统也易于做相应的升级和更新，降低了系统成本。