Title :
Design of a digital reaction-diffusion system for restoring blurred fingerprint images
Author :
Ito, Koichi ; Aoki, Takafumi ; Higuchi, Tatsuo
Author_Institution :
Graduate Sch. of Inf. Sci., Tohoku Univ., Sendai, Japan
Abstract :
This paper presents an algorithm for fingerprint image restoration using a Digital Reaction-Diffusion System (DRDS). The DRDS is a model of a discrete-time discrete-space nonlinear reaction-diffusion dynamical system, which is useful for generating biological textures, patterns and structures. This paper focuses on the design and evaluation of a special DRDS having a capability of restoring incomplete fingerprint images. The phase-only image matching technique is employed to evaluate the similarity between the original fingerprint images and the restored images. The proposed algorithm is useful for person identification applications using fingerprint images.
Keywords :
convolution; fingerprint identification; image matching; image restoration; blurred fingerprint images; digital reaction-diffusion system design; discrete-space dynamical system; discrete-time dynamical system; fingerprint image restoration algorithm; nonlinear dynamical system; person identification applications; phase-only image matching technique; restored images; Biological system modeling; Chemicals; Fingerprint recognition; Image matching; Image restoration; Indium tin oxide; Kinetic theory; Organisms; Signal processing algorithms; Signal restoration;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205777
