Research And Application Of Embedded Image Monitoring Technology Based On ARM9

Image monitoring system has been widely used in various areas of production and life.Embedded system is being applied more and more because of its small size,low power and good scalability.Compared to the tradiontal technology,image monitoring system based on embedded technology has incomparable advantages in price,flexibility,scalability and transmission distance and becomes a hot spot of image monitoring study.On this basis,the paper is on the study of embedded image monitoring technology based on ARM9.The paper used Magic2410development board as the hardware platform,researched the software development platform based on Linux system and completed the construction of cross-development environment based on embedded Linux.On this basis,the paper determined the research scheme of the image monitoring,and introduced the programming method of the acquisition and displaying of the images based on Video4Linux and FrameBuffer and the storage of image data and developed the program modules of image acquisition,displaying and storage.The acquisition of images was affected by the outside interference,and the images were blurred by the noise,so the paper introduced image processing technology and analysed the denoising method such as moving average and median filter and image enhancement method such as contrast enhancement and histogram equalization in detail.The paper used MiniGUI as the graphic user interface and developed and transplanted graphic user interface.After that,it implemented the real-time monitoring of images and the algorithms such as moving average of image、median filter、automatic contrast enhancement and histogram equalization.It supplied the actual result runned in the MiniGUI to proved that the introduction of image processing technology has improved the image monitoring results obviously.