| 在线签名识别系统的USB通信和预处理 |
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| 引用本文： | 赖锌,郑建彬.在线签名识别系统的USB通信和预处理[J].微计算机信息,2007,23(1). |
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| 作者姓名： | 赖锌 郑建彬 |
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| 作者单位： | 1. 湖北武汉武汉理工大学信息工程学院,430070
2. 430070,湖北武汉武汉理工大学信息工程学院;430074,湖北武汉华中科技大学电子与信息工程系 |
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| 摘 要： | 本篇论文主要侧重于阐明将USB通信应用到在线签名识别系统中,满足了信息传输的快速性和准确性;USB通信的实现主要包括硬件电路(MCU PDIUSBD12接口芯片)和固件编程以及驱动和人机界面程序的编写,在经过抗干扰处理后结合VC 界面程序能够实现签名的实时显示;在PC机端将得到的签名波形进行各种预处理包括零点处理、大小归一化和灰度处理,这些处理为后续的识别分析提供了便利。
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| 关 键 词： | 在线签名 预处理 |
USB Communication and Preprocessing in the On-line Signature Verification System |
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| LAI XIN,ZHENG JIANBIN.USB Communication and Preprocessing in the On-line Signature Verification System[J].Control & Automation,2007,23(1). |
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| Authors: | LAI XIN ZHENG JIANBIN |
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| Abstract: | This paper mainly introduces how to use USB interface technology to the on- line signature verification system which real- izes fleet and accurate data transmission. USB communication includes hardware circuit (MCU PDIUSBD12),firmware program,driver and application program. After anti- jamming solution, this system can show real- time signatures in the VC interface. The signa- ture data need some preprocessings including anormalizing character image, zero points solution and grey degree transformation to give some advantages in the latter signature verification. |
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| Keywords: | USB VC |
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