基于MediaPipe的非触摸式在线签名认证系统  

Non-touch Online Signature Authentication System Based on MediaPipe Framework

作　　者：王波 王瑞杰 蔡洁轩 何妍 陈宗仁 刘晓林[1] 唐懿芳[1] 蒋琦峰 张嘉臣 刘侠[2] WANG Bo;WANG Rui-Jie;CAI Jie-Xuan;HE Yan;CHEN Zong-Ren;LIU Xiao-Lin;TANG Yi-Fang;JIANG Qi-Feng;ZHANG Jia-Chen;LIU Xia(Computer Engineering Technical College(Artificial Intelligence College),Guangdong Polytechnic of Science and Technology,Zhuhai 519090,China;School of Automation,Harbin University of Science and Technology,Harbin 150080,China)

机构地区：[1]广东科学技术职业学院、计算机工程技术学院(人工智能学院),珠海519090 [2]哈尔滨理工大学自动化学院,哈尔滨150080

出　　处：《计算机系统应用》2023年第11期131-139,共9页Computer Systems & Applications

基　　金：广东省教育厅普通高校重点领域专项(新一代电子信息)(2022ZDZX1053,2021ZDZX3040);广东省教育厅普通高校创新团队项目(自然科学)(2022KCXTD047);广州市科技计划基础与应用基础研究项目(202201011693)。

摘　　要：针对手写签名认证的可靠性和设备依赖性问题,设计并实现了一种基于MediaPipe的非触摸式在线签名认证系统.该系统以MediaPipe为基础框架,通过视频获得在线手写签名,并提取签名轨迹点的时序特征作为匹配模板,进而采用加权联合概率策略构建签名认证模型.该模型在边缘端设备的平均认证等误率(EER)为3.04%.采用基于PyQt设计的应用作为可视化UI界面,实现在视频场景中的非触摸式在线签名交互认证.该系统使用实时视频感知交互方式实现在线签名认证,无需其他的外部设备,具有更低的设备依赖性和更高的认证可靠性.In this study,a non-touch online signature authentication system based on the MediaPipe framework is designed and implemented for the reliability and device dependency of handwritten signature authentication.The system utilizes MediaPipe as the underlying framework,captures the online handwritten signatures through video,extracts the temporal features of signature trajectory points as matching templates,and constructs a signature authentication model using a weighted joint probability strategy.The model achieves an average equal error rate(EER)of 3.04%on edge devices.An application designed based on PyQt is used as a visual UI interface to enable online non-touch signature authentication in video scenarios.This system uses real-time video sensing interaction to achieve online signature authentication without the need for other external devices,resulting in lower device dependency and greater authentication reliability.

关 键 词：签名认证 非触摸式在线签名 MediaPipe框架 时序特征 加权联合概率策略 

分 类 号：TN918.91[电子电信—通信与信息系统]