文档介绍：第A-PDF Split

机电工程
Journal of Mechanical & Electrical Engineering Dec. 2011
基于 STM32 的指纹识别系统设计与实现
杨磊,张文超,秦会斌
(杭州电子科技大学新型电子器件与应用研究所,浙江杭州 310018)
摘要:针对目前“嵌入式指纹识别系统在性价比及指纹算法的效率和准确性上存在不足”的问题,介绍了一种基于 STM32 芯片及
FPS200 指纹传感器实现嵌入式指纹识别系统的设计方法。在算法方面,采用了求方向场信息以提高指纹 Gabor 滤波增强效果和图像
识别准确性,使用了初匹配和全局匹配的方法以提高识别效率。研究结果表明,该系统识别准确性高,识别效率较高,总体性能达到
要求。
关键词:指纹识别;STM32;指纹传感器;识别算法
中图分类号:;TP216
文献标志码:A
文章编号:1001-4551(2011)12-1531-05
Design and implementation of fingerprint verification
system based on STM32
(Institute of Electron Device & Application,Hangzhou Dianzi University,Hangzhou 310018,China)
Abstract:Aiming at the ings of price,efficiency and accuracy of fingerprint algorithm in the embedded fingerprint identification
system at present,an embedded fingerprint recognition design method based on STM32 and FPS200 fingerprint sensor was introduced. In
the algorithm,Gabor filter enhancement and image recognition accuracy were improved by seeking the fingerprint orientation field
information,and recognition efficiency was enhanced by initial match and global similarity method. The results indicate that the system
identification has high accuracy,high efficiency,overall performance meet the requirements.
Key words:fingerprint recognition;STM32;fingerprint sensor;recognition algorithm
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引言
指纹识别是根据每个人指纹的不变性和唯一性

STM32 作为主控芯片,以提高系统的性价比,同时通
过编程对比目前存在的大多数指纹算法,考虑嵌入