We study a pattern in the fingerprint called a crease, a kind of stripe which irregularly crosses the normal fingerprint patterns (ridges and valleys). Creases will cause spurious minutiae when using a conventional feature detection algorithm, and therefore decreases the recognition rate of fingerprint identification. By representing the crease using a parameterized rectangle, we design an optimal filter as a detector. We employ a multi-channel filtering framework to detect creases in different orientations. In each channel, PCA is used to extract a rectangle's parameters from the raw detected results. Our algorithm is demonstrated by experiments.


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    Title :

    Robust crease detection in fingerprint images


    Contributors:
    Chenyu Wu, (author) / Jie Zhou, (author) / Zhao-qi Bian, (author) / Gang Rong, (author)


    Publication date :

    2003-01-01


    Size :

    2039082 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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