基于FPGA的图像采集系统的设计  

FPGA based on the image acquisition system design

作　　者：潘明[1] 陈元枝[1] 李强[1] 

机构地区：[1]桂林电子科技大学电子工程与自动化学院,桂林541004

出　　处：《国外电子测量技术》2012年第3期58-61,共4页Foreign Electronic Measurement Technology

摘　　要：研究一种基于FPGA和CMOS图像传感器的图像采集处理系统的实现方案。FPGA芯片的I/O口模拟SCCB串线总线写CMOS传感器中的寄存器,来设置CMOS图像传感器的工作方式,然后FPGA根据同步信号采集有效原始图像数据,在FPGA内还原出传统数字RGB格式图像数据,接着以帧为单位将图像数据转存到外部存储器SDRAM中,最后通过UART串口将图像数据转发到PC,进行实时处理或显示。所设计的采集系统能够正常工作,介绍的设计方案可靠有效。This paper is based on FPGA and CMOS image sensor image acquisition and processing system.After the system on the electricity,FPGA initializes the internal registers of CMOS image sensors by SCCB bus interface to set the CMOS image at work.Then according to the synchronization signal,FPGA collects of valid data of the original image.The FPGA chooses the right algorithm of color to recover for the traditional RGB format of digital image data and a frame for image data will turn to external storage SDRAM.At last the image data will be sent forward to PC by the UART for processing or displaying at real time.The design of acquisition system can work normally,so this method is reliable and effective.

关 键 词：图像采集 FPGA OV7620 SDRAM 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]