Sökning: "minutiae"

Visar resultat 6 - 10 av 14 uppsatser innehållade ordet minutiae.

  1. 6. Implementation and Evaluation of NIST Biometric Image Software for Fingerprint Recognition

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Sainath Maddala; Sreekanth Rao Tangellapally; [2010]
    Nyckelord :Biometric; NIST Fingerprint Verification; MEX-File; ROC graphs.;

    Sammanfattning : Fingerprints are rich in details which are in the form of discontinuities in ridges known as minutiae and are unique for each person. The main desire of this thesis is to implement and evaluate National Institute of Science and Technology (NIST) Biometric Image Software (NBIS) for fingerprint recognition using C language MEX-files. LÄS MER

  3. 7. Fingerprint Segmentation

    Master-uppsats, Datateknik

    Författare :Diala Jomaa; [2009]
    Nyckelord :Biometric system; fingerprint Recognition System; Otsu; Split and Merge; Histogram Equalization; mean; variance and coherence;

    Sammanfattning : In this thesis, a new algorithm has been proposed to segment the foreground of the fingerprint from the image under consideration. The algorithm uses three features, mean, variance and coherence. Based on these features, a rule system is built to help the algorithm to efficiently segment the image. LÄS MER

  4. 8. Examination of Various Approaches to Possibly Improve the Existing Algorithms Applied in Fingerprint Recognition Systems

    Kandidat-uppsats, Blekinge Tekniska Högskola/Avdelningen för signalbehandling

    Författare :Gorka Treceño Fontecha; Beatriz Mora Barbero.; [2007]
    Nyckelord :Fingerprint Recognition;

    Sammanfattning : In human fingerprints there are plenty of small details which are the discontinuities in the ridges, denoted minutiae. Minutiae-based matching is a wellknown method applied in fingerprint recognition. Minutiae defines a representative feature vector of a fingerprint. LÄS MER

  5. 9. Extraction and Application of Secondary Crease Information in Fingerprint Recognition Systems

    Uppsats för yrkesexamina på grundnivå, Institutionen för teknik och naturvetenskap

    Författare :Pontus Hymér; [2005]
    Nyckelord :Datorteknik; biometrics; fingerprint analysis; feature extraction; secondary creases; template aging; Gabor filter; pattern recognition; Hough transform; vector clustering; Datorteknik;

    Sammanfattning : This thesis states that cracks and scars, referred to as Secondary Creases, in fingerprint images can be used as means for aiding and complementing fingerprint recognition, especially in cases where there is not enough clear data to use traditional methods such as minutiae based or correlation techniques. A Gabor filter bank is used to extract areas with linear patterns, where after the Hough Transform is used to identify secondary creases in a r, theta space. LÄS MER

  7. 10. Biometric methods and mobile access control

    Magister-uppsats, Blekinge Tekniska Högskola/Avdelningen för programvarusystem

    Författare :Linda Fransson; Therese Jeansson; [2004]
    Nyckelord :Biometrics; iris scan; iris; speaker verification; voice; fingerprint recognition; fingerprint; mobile phone; access control;

    Sammanfattning : Our purpose with this thesis was to find biometric methods that can be used in access control of mobile access. The access control has two parts. Firstly, to validate the identity of the caller and, secondly, to ensure the validated user is not changed during the session that follows. LÄS MER