基于ARM和Linux的视频图像采集系统  

Video image acquisition system based on ARM and Linux

作　　者：刘志华[1] 

机构地区：[1]中南民族大学电子信息工程学院,湖北武汉430074

出　　处：《微型机与应用》2014年第3期12-14,17,共4页Microcomputer & Its Applications

摘　　要：提出了一种基于S3C2440 ARM处理器、USB摄像头硬件平台和嵌入式Linux操作系统的视频采集系统方案。研究了USB摄像头在Linux中的驱动开发,对系统总体结构、基于V4L2的视频采集以及视频动态显示应用程序等功能模块设计做了具体介绍。试验结果表明,本系统实现了在LCD显示器上动态显示USB摄像头采集的图像,且视频采集稳定,图像帧过渡平稳,提供了一种成本低、体积小、功耗低的图像采集方案,能够很好地应用在视频监控等系统中。Based on S3C2440 ARM processor, USB camera hardware platform and embedded Linux operating system, the video acquisition system is proposed. It studies the driver development of USB camera in Linux, and introduces system architecture, video capture based on V4L2, and video dynamic display applications modules. Test results show that this system realizes dynamic display USB camera image capture in LCD display, video capture with stability, image frames over a smooth, which provides a low cost, small size and low power consumption of the image acquisition program, and can be well applied to video surveillance systems.

关 键 词：视频采集 S3C2440 LINUX V4L2 QTOPIA 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TP316.81[自动化与计算机技术—计算机科学与技术]