摘要
在FPGA图像采集系统的基础上,设计了一种遥控式且带存储功能的图像采集系统。设计采用MT9T001作为图像传感器,以FPGA芯片EP2C8Q208和AVR单片机ATmega8L的组合为主,以高速视频数模转换芯片ADV7125和USB接口芯片VNC1L-1A为辅助,完成了图像的采集、实时显示、图像以灰度位图格式的存储及对已存图片的重新显示、存储控制、遥控器解码及用遥控器调节图像参数等功能。此设计应用到工业相机领域,操作简单且方便灵活,对130万像素的图像数据实时显示的速度可以达25 f/s,写入存储设备和从存储设备中读出并显示的时间分别可达6 s和5 s。对图像存储功能的设计与实现进行了详细介绍,并对遥控功能进行了描述。
Based on the image acquisition system achieved with FPGA,a kind of image acquisition system with remote control and memory functions was designed.The functions of image acquisition,real-time displaying,image storage in BMP form,image redisplay,memory control,decoding of remote controller,and adjustment of image parameters with remote controller are accomplished by taking MT9T001 as the image sensor,FPGA chip EP2C8Q208 and AVR chip Atmega8L composite as a main controller,and high speed D/A chip ADV7125 and USB interface chip VNC1L-1A as an assistant.This design can be used in industry,because it is easy and convenient to operate.The real-time displaying speed of images with 1.3 million pixels can reach 25 F/s.The save and readout speed from the storage device reaches 6 s and 5 s respectively.The design and achievement of image nstorage function are introduced in detail,and the remote control is described.
出处
《现代电子技术》
2010年第11期144-146,150,共4页
Modern Electronics Technique
基金
北京市教育委员会科技计划面上项目:视频图像采集与数字电视接收系统实训设备
