基于ARM的扫描式热成像指纹识别系统

作者：郝波1，戴华平1，张七利2 日期：2007-10-24/span> 浏览：4150 查看PDF文档

基于ARM的扫描式热成像指纹识别系统

郝波1，戴华平1，张七利2
（1.浙江大学 工业控制技术国家重点实验室，浙江 杭州 310027； 2.蓝洋科技电子有限公司，浙江 嘉兴 314100）

摘要：指纹识别是目前生物特征识别领域最为成熟、适用的技术。为了提高指纹识别系统的安全性并降低总成本，采用Atmel公司的扫描式热成像指纹传感芯片来获取指纹图像，针对这种传感器的分片输出，设计了整幅指纹图像的快速重构算法，并在ARM处理器上实现了此图像重构算法，完成了后续的预处理、特征提取、比对等工作，在控制系统总体成本的同时取得了良好的识别效果。整个系统小巧紧凑，具备二次开发接口，能方便地嵌入到需要进行访问控制的机电设备中使用。
关键词：指纹识别；热成像；嵌入式系统
中图分类号：TP391.41文献标识码：A文章编号：1001-4551(2007)09-0005-03

Scanned thermal imaging fingerprint identification system based on ARM
HAO Bo1, DAI Huaping1, ZHANG Qili2
(1.State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China;
2.LOYOR Electronic Technology Co. Ltd., Jiaxing 314100, China)
Abstract: The majority of the biometricbased systems in operation today are fingerprint identification.To reduce cost and enhance security, a product of Atmels scanned thermal imaging IC was employed. A fingerprint image reconstruction algorithm was also proposed for this kind of sensor. The fingerprint image reconstruction, preprocess, feature extraction and identification were done on ARM processor,which produced a good result with low cost. Due to its small size and good programmed interface,the whole system is suitable for embedding into other products that need such security enhancement.
Key words: fingerprint identification; thermal imaging; embedded system

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