【摘要】 为了解决目前制约虹膜识别系统技术发展遇到的虹膜图像采集困难、用户友好性差、识别算法依赖图像质量等关键性问题,提出了一种基于DM3730的中距离虹膜识别系统设计。图像采集模块采用了高分辨CMOS图像传感器辅以LCD反馈单元和调焦模块,使虹膜采集和人脸采集一样方便;提出了非限定性的相关虹膜识别算法,保证了系统有效性;针对ARM和DSP双核架构的DM3730处理器,设计了系统软件。实验结果表明,该系统采集图像方便、有效,并且系统识别率高、实时性好,具有很强的实用价值。更多还原

【Abstract】 To deal with key issues which constrain the development of iris recognition system technology,such as difficulties in iris image acquisition,bad user friendliness and recognition algorithms rely on image quality,etc,a kind of design of iris recognition system within middle distance based DM3730is proposed.Firstly,the image acquisition of the system,which is constructed by a high-resolution CMOS image sensor,a LCD feedback unit and focusing model,makes iris acquisition as easy as face acquisition.Secondly,unconstrained iris recognition algorithms are proposed to ensure the effectiveness of the system.Finally,for the DM3730processor which uses ARM and DSP dual-core architecture,the system software is designed.Experiments show that this system has convenient and efficient image acquisition device,high recognition rate,real-time and strong practical value.更多还原