摘要
设计了支持4路标准视频信号输入,采集的像素阵列为720×576,每s采集25帧8位黑白图像的高速图像采集卡,实现图像的动态采集。该视频采集卡以FPGA为逻辑控制中心,采用SAA7111将4路视频信号分别转换为数字图像数据,经FIFO缓存后,由PCI总线接口芯片PCI9052将数据送入计算机,最后通过应用程序将图像显示出来。实验分析表明该视频采集卡能实现4路实时传输显示。
This paper designed a high-speed image grab card, with 4 MUX standard image signal inputs, 720 × 576 pixal array, 25 frame 8 bits black and white every second. The image grab card used FPGA as the logic control center, used SAA7111 to translate the 4 MUX image signal to digital image data. After buffeting in an FIFO, the data were read into computer by a universal PCI interface chip （PCI9052）. Finally the images were displayed on screen. It discussed the hardware and software design of this card. The experiment proves that it can display the 4 MUX image.
出处
《仪表技术与传感器》
CSCD
北大核心
2009年第1期56-58,70,共4页
Instrument Technique and Sensor
