Video Image Acquisition System

The essay expounds video image acquisition system basing on CMOS active pixel sensor and CPLD. Therefore it solve .the problem of making an high-precise and real-time acquisition of video images and ensure the precision of the management and the speed of the acquisition.The essay makes an research on video image acquisition. It relates the hardware structure and working procedure of the video image acquisition system in detail. It takes an active pixel sensor as image receiver and an CPLD as an image driver to form the video image acquisition system. It makes the system have such advantages as high resolution ratio, high-precision measurement, high-speed of taking sample and simple circuit design project. The essay use VHDL language and CPLD to design software. The program design adopts many parallel course sentences. The system combines VHDL language with CPLD language increases the agility of the design and reduce the complicacy of the circuit.