Design of a Wide Working Range Lens for Iris Recognition

详细信息    查看全文

• 关键词：Iris recognition ; Wide working range ; Liquid lens
• 刊名：Lecture Notes in Computer Science
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：9967
• 期：1
• 页码：339-348
• 全文大小：1,221 KB
• 参考文献：1.Burge, M.J., Bowyer, K.W. (eds.): Handbook of Iris Recognition. Springer, London (2013)
  2.Sachin, G., Chander, K.: Iris recognition: the safest biometrics. Int. J. Eng. Sci. 4, 265–273 (2011)
  3.Yu, D., Tan, H.: Engineering Optics. China Machine Press (2006)
  4.Iris Image Quality Standard, SC 37 N 3331. ISO/IEC 29794-6 Annex A (2009)
  5.1/4-Inch Digital Image Sensor. http://​www.​onsemi.​cn/​pub_​link/​Collateral/​AR0141CS-D.​PDF
  6.Varioptic-ARCTIC 39N. http://​www.​varioptic.​com/​products/​variable-focus/​arctic-39n/​
  7.Laikin, M.: Lens Design, Forth edn. China Machine Press (2011)
  
• 作者单位：Wenzhe Liao (21)
  Kaijun Yi (21)
  Junxiong Gao (21)
  Xiaoyu Lv (21)
  Jinping Wang (21)
  
  21. Wuhan Hongshi Technologies Co., Ltd., C2-801, No. 999 Gaoxin Avenue, East Lake High-Tech Development Zon, Wuhan, 430200, Hubei Province, China
  
• 丛书名：Biometric Recognition
• ISBN：978-3-319-46654-5
• 刊物类别：Computer Science
• 刊物主题：Artificial Intelligence and Robotics
  Computer Communication Networks
  Software Engineering
  Data Encryption
  Database Management
  Computation by Abstract Devices
  Algorithm Analysis and Problem Complexity
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1611-3349
• 卷排序：9967

文摘

This paper presents a methodology to solve the problem of narrow working range of lens for iris recognition. For iris recognition, working range of the lens is limited by the depth of field of the imaging lens. This paper proposes a design of a lens with liquid lens as a key component. The designed lens has a wide working range and can acquire high resolution images. The designed parameters include 19.2–20.3 mm focal lens, work distance from 250 mm to 450 mm, less than 0.5 % distortion, 2.8 working F number, 4 mm image diameter, 840 nm–870 nm wavelength of operating spectrum. At 166 lp/mm, the lens can acquire iris image over all field of view with MTF > 0.3. The lens is composed of fours spherical lenses and one liquid lens. Without moving parts inside, the structure of designed lens is simple and convenient to control.