摘要
在对实时虹膜识别技术的研究现状、识别算法和系统构成等进行全面分析基础上,针对实时虹膜识别技术的应用提出了手持嵌入式虹膜识别片上(SoC)系统。重点研究了该系统应用的虹膜识别算法,提出了一种新的基于SoC系统应用的虹膜图像获取、内外边缘定位、归一化、增强和识别算法。对该识别系统实验验证表明,算法运算速度快,性能稳定,精度高,具有体积小,功耗低,稳定性高等特点。
The iris recognition is a new biometrics recognition technology.It can reach the precision veracity.The high veracity of iris recognition is the special feature in numerous biometrics recognition technologies.In this paper,a portable embedded iris recognition system based on SoC is designed.The SoC system consists of five parts of Power Manager and interface Circuit,Iris Acquisition part,Iris Processing part（DSP＋ARM）,Memory,Human-Machine Communicating Equipment（LCD and keyboards）.Additionally,some experiences during debugging are expressed.Some kinds of biometric recognition techniques used in embedded system are introduced.Then,the main development of iris recognition technique and the structure of iris recognition system are discussed in detail.The algorithms of iris recognition have also been studied deeply which include pre-processing,feature extraction,and pattern match.The test shows that the performance of this SoC iris recognition system is good.
出处
《压电与声光》
CAS
CSCD
北大核心
2010年第4期687-691,共5页
Piezoelectrics & Acoustooptics
基金
重庆市教委自然科学基金资助项目(KJ080507)
