| 多指指纹采集仪的光学系统设计 |
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| 引用本文： | 黄玮,韩正臣. 多指指纹采集仪的光学系统设计[J]. 光学精密工程, 2006, 14(6): 955-958 |
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| 作者姓名： | 黄玮 韩正臣 |
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| 作者单位： | 中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033;中国科学院,研究生院,北京,100039;长春方圆光电技术有限责任公司,吉林,长春,130033 |
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| 摘 要： | 多指指纹采集仪是一种大视场、高分辨率的指纹采集设备,它代表了生物特征识别领域的发展方向,其核心技术是高分辨率光学系统的设计。对采用"独立镜头"、"两组远心"、"单片前组和独立镜头组合"三种方案进行的设计进行了比较,指出了各种方案的优缺点。其中单片前组和独立镜头组合的方案在150 lp/mm的传递函数＞0.6,采用该方案的实验样机取得了良好的图像。
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| 关 键 词： | 多指指纹采集仪 光学系统设计 生物特征识别 |
| 文章编号： | 1004-924X(2006)06-0955-04 |
| 收稿时间： | 2006-03-20 |
| 修稿时间： | 2006-10-18 |
Optical system design of multi-finger fingerprint scanner |
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| HUANG Wei,HAN Zheng-chen. Optical system design of multi-finger fingerprint scanner[J]. Optics and Precision Engineering, 2006, 14(6): 955-958 |
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| Authors: | HUANG Wei HAN Zheng-chen |
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| Affiliation: | 1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033,China ; 2. Graduate School of the Chinese Academy of Sciences, Beijing , 100039, China ; 3. Changchun Fangyuan Opto-electronic Technology Co. Ltd,Changchun 130033, China |
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| Abstract: | Multi-finger fingerprint scanner is a high-resolution fingerprint capture device with big Field of View(FOV),it represents the developing trend of the biometric identification area.For the key technology of this device,the optical system design,this paper presents three types of optical design methods,they are separate lens,two group telecentric system and one singlelet with separate lens system,the advantages and disadvantages of each design are discussed and compared,it is found that the MTF of singlelet with separate lens system is larger than 0.6 in 150 lp/mm,also prototype of this design obtains a image in good quality. |
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| Keywords: | multi-finger fingerprint scanner optical system design biometric identification |
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