关于FPGA的图像采集系统的设计研究

Design of image acquisition system on the FPGA

基于FPGA图像采集技术的指导下,以FPGA为系统控制中心,连接图像传感模块、存储器SDRAM、串口UART等模块之间的逻辑运算,优化该系统的硬件设计与电路设计。以FPGA芯片设计CMOS传感器的工作方式,依据同步信号实施有效的采集,而后在FPGA内还原出原始的图像数据,以RGB的格式表现出来,并以帧为单位缓存至外部存储器SDRAM当中,最后通过UART串口与PC机连接,显示在荧幕上。该系统工作运转正常,设计方案能够实行。

Based on the FPGA image acquisition technique, using FPGA as the system control center, logic connection between the image sensing module, memory SDRAM, UART serial port module, optimization design and hardware circuit of the system. In FPGA chip design of CMOS sensor working mode, the effective implementation of the acquisition on the basis of the synchronous signal, and then restores the original image data in FPGA, displayed in RGB format, and a frame unit cache to the external memory SDRAM, finally connecting through UART serial port and PC machine, the display on the screen. The system works in normal operation, the design scheme can implement.