摘要
获取理想手掌静脉图像是提高手掌静脉识别系统性能的前提条件。因此,本文设计一种非接触式全手掌静脉成像系统,该系统采用波长为850nm的圆头型近红外LED作为主动光源,同时选用与之灵敏度较高的OV7410摄像机并搭配光圈值为2.8、焦距为8mm的镜头。经实验表明,搭建的手掌静脉成像系统能够采集到清晰的全手掌静脉图像,为手部多模态特征融合提供了硬件平台。
Ideal palm vein imaging is the prerequisite of improving palm vein pattern recognition performance. It is designed a non- contact palm vein acquisition system in the paper. The system uses a wavelength of 85Onto round near-infrared LED as the active light source; meanwhile, uses the OV7410 camera with high sensitivity and aperture value of 2.8 with a focal length of 8mm lens. The experiment demonstrates the palm vein imaging device can acquire clear whole palm vein image, it provides hardware platform for multi-hand feature fusion.
出处
《微计算机信息》
2012年第10期46-47,108,共3页
Control & Automation
基金
基金颁发部门:国家自然科学基金
项目名称:在线单机非接触定焦成像手多模态信息融合技术
编号:(NO.60972123)
基金申请人:苑玮琦
