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 …

In this paper, we study a novel pattern in the fingerprint called crease, a kind of stripes
irregularly crossing the normal fingerprint patterns (ridges and valleys). Creases will cause
spurious minutiae by using conventional feature detection algorithm, and therefore decrease
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 …