摘要
介绍FPS200指纹图像传感芯片的结构特点及其工作原理,研制出基于MCU(MicroControlUnit)和FPS200的串行接口小型指纹采集系统,并介绍了获取指纹后的处理算法。该系统具有接口方便、操作便捷、节约能源、成本较低、安全性高等优点。对该系统采用不同的串行接口和不同的参数进行实验,并对图像进行相应的处理。实验结果表明,该系统采集的指纹图像较清晰、失真较小。
In this paper,the operating principle,structure and features of Veridicom FPS200 fingerprint sensor are introduced.A design of fingerprint acquisition front-end using serial interface made up of MCU(micro control unit) and FPS200 is also presented, especially the key C51 source code. The system has such features as easy to interface, easy to operate, low power,low cost,and high security. The images obtained by differently parameter-set and interfaced acquisitions are given in the paper. The results show that the images obtained with the proposed system are clearer and less distorted.
出处
《武汉科技大学学报》
CAS
2004年第4期412-415,共4页
Journal of Wuhan University of Science and Technology
基金
湖北省教育厅科学研究计划资助项目(2001A19006)
关键词
指纹识别系统
指纹传感芯片
MCU
接口
fingerprint recognition system
fingerprint sensor
MCU
interface
