Preprocessing of a fingerprint image captured with a mobile camera

Authors:
Chulhan Lee;Sanghoon Lee;Jaihie Kim;Sung-Jae Kim
Affiliations:
Biometrics Engineering Research Center, Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea;Biometrics Engineering Research Center, Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea;Biometrics Engineering Research Center, Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea;Multimedia Lab., SOC R&D center, Samsung Electronics Co., Ltd, Gyeonggi-Do, Korea
Venue:
ICB'06 Proceedings of the 2006 international conference on Advances in Biometrics
Year:
2006

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Abstract

A preprocessing algorithm of a fingerprint image captured with a mobile camera is proposed. Fingerprint images from a mobile camera are different from images from conventional or touch-based sensors such as optical, capacitive, and thermal sensors. For example, images from a mobile camera are colored and the backgrounds or non-finger regions can be very erratic depending on how the image captures time and place. Also, the contrast between the ridges and valleys of images from a mobile camera is lower than that of images from touch-based sensors. Because of these differences between the input images, a new and modified fingerprint preprocessing algorithm is required for fingerprint recognition when using images captured with a mobile camera.