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Jaihie Kim

Talk I: Touchless Fingerprint Recognition 

Jaihie Kim

Professor, School of EE, Yonsei University
Director, Biometric Engineering Research Center
Republic of Korea

The biometrics is a field of technology to automatically identify a person using physiological or behavioral traits like the fingerprint, iris, face, hand vein, etc. Among them, fingerprint recognition is the most popular for its small size, relatively high accuracy and economical price. However, conventional fingerprint sensors available in the market are all touch-based and a user needs to press his/her finger on a sensor causing such problem as image distortion, inconsistent and partial image view, latent image, scratches or germs on the sensor, etc.
In this talk, touchless fingerprint recognition is introduced. It is a new concept for capturing a fingerprint image without making a contact of the finger onto the sensor to overcome the difficulties of touch-based sensors:
  • For one finger scan, the first BERC (Biometrics Engineering Research Center) model with its internal structure is illustrated and compared with others. 
  • Then, the second BERC model having two side mirrors attached next to the finger hole is illustrated. It is to obtain an expanded fingerprint image by mosaicking two side view images reflected through the mirrors with the center view image taken as before. Details on the image mosaick procedure and results are discussed. Similar efforts researched in other organizations for obtaining expanded touchless fingerprint images are introduced.
  • Thirdly, the third BERC model for capturing all five fingerprint images at one time is presented. It has a rotating camera with five holes to hold five fingers. Other researches for five finger sensors are introduced.
  • Aliveness detection to protect fake touchless images are introduced. It is based on multi-spectral analysis in the visible wavelength range.
  • Concluding remarks are made with an expectation for future touchless fingerprint recognition. 

Talk II: Biometrics and Privacy Protection

Jaihie Kim

Professor, School of EE, Yonsei University
Director, Biometric Engineering Research Center
Republic of Korea

Biometrics is the automatic recognition of a person by using the physiological or behavioral traits of a person including fingerprints, iris, face, voice, and etc.  It is very useful in many security applications, for the features used in biometrics are seldom changed in different time and place; however, being unchangeable is also the reason for privacy concern in using biometric systems.  

This tutorial introduces why privacy is concerned with biometric systems. Then, technologies to protect the privacy will be discussed as the follows. Firstly, aliveness detections to prevent fake fingerprints or iris inputs are discussed. Secondly, changeable biometrics which is useful when a biometric data is compromised and it needs be cancelled is presented. Lastly, watermarking to hide the responsible ownership in the biometric data is briefly discussed.

It is believed that when these three techniques are provided, biometric data are more secure than ordinary non-biometric data.

Biography

Prof. Jaihie Kim received the Ph.D. degree in Electrical Engineering at the Case Western Reserve University, USA.  Since 1984, he has been a professor in the School of Electrical and Electronic Engineering, Yonsei University in the Republic of Korea. 

Currently, Prof. Kim is the Director of the Biometric Engineering Research Center in Korea, the Chairman of the Korea Biometric Association, a member of the National Academy of Engineering of Korea, and in 2008 he was the President of the IEEK (Institute of Electronics Engineers of Korea) and now an Emeritus President of the IEEK.

Prof. Kim’s general research interests include biometrics, pattern recognition and computer vision. Specifically, some of his recent research topics include touchless fingerprint recognition, fake fingerprint detection, iris recognition at a distance and computer vision for the safety vehicles. He was the Keynote Speaker at the Security Symposium 2006 in Japan, the Biometric Consortium Conference 2007 in USA, the IEICE General Meeting 2008 in Japan, the FAN 2009 in Japan, the UKC 2009 in USA, the ICEIC 2010 at Philippine. He is the author of many international technical journals and conferences, some of which can be found at ‘http://cherup.yonsei.ac.kr/’
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