基于FPGA的视频数字识别系统  

FPGA-based video digital recognition system

作　　者：田晨雨 李锦屏[1] 李雨忻 李刘杰 程传同 TIAN Chenyu;LI Jinping;LI Yuxin;LI Liujie;CHENG Chuantong(School of Electronic and Information Engineering,Lanzhou Jiaotong University,Lanzhou 730070,Gansu,China;Brain Machine Fusion Intelligence Institute,Jiangsu Industrial Technology Research Institute,Suzhou 215008,Jiangsu,China;School of Advanced Technology,Xi’an Jiaotong-Liverpool University,Suzhou 215213,Jiangsu,China;State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Materials Science and Opto-Electronic Technology,University of Chinese Academy ofSciences,Beijing 100049,China)

机构地区：[1]兰州交通大学电子与信息工程学院,甘肃兰州730070 [2]江苏省产业技术研究院脑机融合智能研究所,江苏苏州215008 [3]西交利物浦大学智能工程学院,江苏苏州215213 [4]光电子材料与器件重点实验室(中国科学院),北京100083 [5]中国科学院大学材料科学与光电技术学院,北京100049

出　　处：《云南大学学报(自然科学版)》2025年第2期266-273,共8页Journal of Yunnan University(Natural Sciences Edition)

基　　金：甘肃省自然科学基金(23JRRA894,24JRRA243);甘肃省重点研发计划(23YFWA0007)。

摘　　要：构建了一种基于现场可编程门阵列(field programmable gate array,FPGA)和CMOS图像传感器OV7725的视频数字识别系统.该系统包括人工光感受器、数字电位器阵列相关电路和视频图形阵列(video graphic array, VGA)显示器.由FPGA和CMOS图像传感器OV7725组成的人工光感受器将视频数字输入并进行图像处理,利用数字电位器阵列相关电路进行数字的训练与识别,可通过VGA显示器和FPGA上的数码管进行数字显示.系统采用QuartusⅡ18.1软件平台,通过Verilog HDL语言进行程序编写并进行时序分析验证.该系统能识别0到9的视频数字,取得了良好的效果,从而实现了基于FPGA的视频数字识别系统.This paper constructs a video digital recognition system based on field programmable gatearray(FPGA)and CMOS image sensor OV7725.The system includes an artificial photoreceptor,a digitalpotentiometer array related circuit and a video graphics array(VGA)display.The artificial photoreceptor composedof FPGA and CMOS image sensor OV7725 inputs the video digitally and processes the image,tests and recognizesthe digit by using the digital potentiometer array related circuitry,and finally can be displayed digitally by theVGA monitor and the digital tube on the FPGA.The system uses QuartusⅡ18.1 software platform,programmedand verified by Verilog HDL language for timing analysis.The system achieves good results by recognizing thevideo numbers from 0 to 9,thus realizing the FPGA-based video number recognition system.

关 键 词：现场可编程门阵列(FPGA) 视频数字识别 图像处理 Verilog HDL 视频图形阵列(VGA) 

分 类 号：TM46[电气工程—电器]