基于FPGA的手写蒙文字体转换系统设计及实现  

Design and Implementation of Handwritten Mongolian Script Conversion System Based on FPGA

作　　者：李永辉 颜世威 施展 王立国 冯冲 LI Yonghui;YAN Shiwei;SHI Zhan;WANG Liguo;FENG Chong(College of Information and Communication Engineering,Dalian Minzu University,Dalian 116600,China;State Nuclear Power Automation System Engineering Company,Shanghai 200241,China)

机构地区：[1]大连民族大学信息与通信工程学院,辽宁大连116600 [2]国核自仪系统工程有限公司,上海200241

出　　处：《计算机测量与控制》2024年第10期180-186,200,共8页Computer Measurement &Control

基　　金：国家自然科学基金(62071084);校研究生项目(YJS2023JG03,YJS2023JG11)。

摘　　要：蒙文字体转换在促进蒙文应用和推广、丰富中国文化多样性以及促进蒙古族地区经济繁荣方面具有关键作用;针对蒙文字体转换的效率和准确率低的问题,提出一种基于轻量化卷积神经网络(CNN)和FPGA硬件加速器的方法;即使用CNN进行手写蒙文识别,并结合字体转换库,通过识别结果和字体的映射关系实现了简单高效的蒙文字体转换;相比于其他方法,该方法结合了高效的CNN和FPGA硬件加速器的优势,既提高了转换效率,又满足了设备成本、功耗和便携性的需求;使用Xilinx公司的XC7Z020CLG400-2完成网络模型电路的设计和优化工作,在此基础上实现了手写蒙文字体转换系统,测试结果表明,手写体蒙文转换为目标字体的准确率为95.62%,转换时间为1.43 ms,功耗为0.341 W,加速器峰值吞吐量为6.64 Gops;研究成果对于促进蒙古族文化传承和经济发展具有重要意义。Mongolian script conversion plays a pivotal role in promoting the application and dissemination of the Mongolian script,enriching the diversity of Chinese culture,and fostering economic prosperity in Mongolian regions.Aimed at the poor efficiency and accuracy of Mongolian script conversion,this paper proposes a method based on lightweight convolutional neural network(CNN)and FPGA hardware accelerator The CNN is used to carry out the handwritten Mongolian script recognition,and combined with the font conversion library,a simple and efficient Mongolian font conversion is achieved through the mapping relationship between the recognition results and the fonts.This approach has the advantages over other methods in the efficiency of the CNN and FPGA hardware accelerator,improving the conversion efficiency while meeting the requirements of device cost,power consumption,and portability.The circuit of network model is designed and optimized by using Xilinx s XC7Z020CLG400-2 chip.On this basis,a handwritten Mongolian font conversion system was implemented.Test results show an accuracy of 95.62%for converting the handwritten Mongolian script to the target font,with a conversion time of 1.43 ms,a power consumption of 0.341 W,and a peak throughput of 6.64 Gops for the accelerator.It is of significance for the research results to promote the preservation of Mongolian culture and economic development.

关 键 词：蒙文字体转换 FPGA加速器 低功耗系统 

分 类 号：TH274[机械工程—机械制造及自动化]