Video Signal Acquisition And The Pci Interface Design

In the past years, there is great development on Semi-Conductor, Communications, and Computer technology, which require high quality of image display. The former analog technique, which has low speed, bad quality of image, and poor ability of anti-disturb, no longer meet the demands of high quality and high speed processing. At the same time, the digital video processing technique that combined computer technology came into being. The field of video signal processing is now undergoing a digital reform. The digital processing technique is clearly expatiated in this paper, such as A/D convert, anti-alias filter, clamp control, gain control, PLL, synchronization circuit, color decoder, comb filters.In order to fuse the computer technique, high speed PCI Bus is adopted, which helps to resolve the problem of Sequential Image acquiring, transporting, and processing, and finish the Sequential Image Acquisition & Processing System.