Sökning: "Pontus Hymér"

Hittade 1 uppsats innehållade orden Pontus Hymér.

  1. 1. 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