Universiti Teknologi Malaysia Institutional Repository

Tangent direction computation in ridge line following of gray scale fingerprint images

Sulong, Siti Masrina and Sulong, Ghazali (2000) Tangent direction computation in ridge line following of gray scale fingerprint images. In: National Conference on Telecommunication Technology 2000, 20th - 21st Nov. 2000, Hyatt Regency Hotel, Johor Bahru.

PDF - Published Version


Most Automatic Fingerprint Identification System (AfIS) is based on minutiae matching due to its uniqueness. Minutiae are essentially terminations and bifurcations of the ridge lines that constitute a fingerprint pattern. Maio and Maltoni (1997) proposed a method to detect minutiae in gray scale fingerprint images based on ridge line following which is to crail the ridge line according to the fingerprint directional image. In order to determine the direction of the ridges, computation of tangent direction is a must. Maio and Maltoni applied least-squared minimization technique to obtain the tangent direction. In this paper, we implement Sobel mask technique as an alternative to least-square minimization.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Towards Global Convergence Through Telecommunication
Uncontrolled Keywords:tangent direction, ridge line following, gray scale images, minutiae detection, Automatic Fingerprint Identification System (AFIS).
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > TR Photography
Divisions:Computer Science and Information System (Formerly known)
ID Code:10984
Deposited By: Zalinda Shuratman
Deposited On:16 Nov 2010 13:18
Last Modified:16 Nov 2010 13:18

Repository Staff Only: item control page