International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2557

Full Length Research Paper

Singular points detection using fingerprint orientation field reliability

Mohammed Sayim Khalil1, Dzulkifli Muhammad1, Muhammad Khurram Khan2*, Khaled Alghathbar2, 3
1Department of Computer Graphics and Multimedia, Universiti Teknologi, Malaysia. 2Center of Excellence in Information Assurance (CoEIA), King Saud University, Saudi Arabia. 3Information Systems Department, College of Computer and Information Sciences, King Saud University, Saudi Arabia
Email: [email protected]

  •  Accepted: 04 March 2010
  •  Published: 30 April 2010


Singular Points detection is the most challenging and important process in biometrics fingerprint verification and identification systems. Singular points are used for fingerprint classification, fingerprint matching and fingerprint alignment. This paper overcomes problems of the previous methods of miss-deducting or deducting spurious singular points. We propose a novel algorithm for singular point detection based on the fingerprint orientation field reliability. The algorithm starts by enhancing the fingerprint image using the short time Fourier Transform analysis (STFT), followed by calculating the orientation field reliability and locating the singular points. Experimental results have proven that the proposed algorithm locates singular points in a fingerprint image with high accuracy and can even locate the secondary core and delta if they exist.


Key words: Biometrics, security, fingerprint image, singular points, reliability.