Title :
A new scheme for touchless fingerprint recognition system
Author :
Song, Yeegahng ; Lee, Chulhan ; Kim, Jaihie
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
Fingerprint-based recognition systems are widely used in the field of biometrics. Most of the fingerprint sensors developed so far acquire fingerprint images through the surface of a solid plate, which degrades the recognition performance due to deformations. These deformations are caused by the pressure of the physical contact that is costly and hard to estimate. A touchless fingerprint recognition system is devised using a camera sensor to resolve this problem. However, this system raises some new problems, such as defocusing, low ridge-valley contrast, 3D-to-2D mapping, and so forth. Adequate solutions are discussed by introducing modified steps to the algorithm. Our proposed system is compared with a primitive touchless sensor with no manipulation and the algorithm of the preceding touch-based system. Future work is suggested.
Keywords :
fingerprint identification; image enhancement; optical focusing; 3D-to-2D mapping; biometrics; camera sensor; defocusing; deformations; image enhancement; ridge-valley contrast; touchless fingerprint recognition system; Biometrics; Biosensors; Degradation; Fingerprint recognition; Image matching; Image recognition; Image sensors; Sensor systems; Solids; Tactile sensors;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2004. ISPACS 2004. Proceedings of 2004 International Symposium on
Print_ISBN :
0-7803-8639-6
DOI :
10.1109/ISPACS.2004.1439111