Method for determining the bearing surface in skin print images

Details Method for determining the bearing surface in skin print images Method for determining the bearing surface in skin print images

2003-12-22

2009-06-23

Bella, Matthew C (Department: 2624)

Image analysis

Applications

Personnel identification

C382S115000, C382S125000, C382S190000

Reexamination Certificate

active

07551757

ABSTRACT:
In a method for determining the bearing surface in images of skin prints, the skin having ridges and furrows and the images existing in the form of image data, the image is filtered with a plurality of Gabor filters whose cosine functions are oriented in different directions in the spatial domain. From the filter responses, surfaces are determined that are each distinguished by an approximate direction of the ridges/furrows, which direction is preset by the respective Gabor filter. The surfaces are combined to an overall surface that represents the bearing surface.

REFERENCES:
patent: 5926555 (1999-07-01), Ort et al.
patent: 7142699 (2006-11-01), Reisman et al.
patent: 2006/0083410 (2006-04-01), Meier
B.M.Mehtre et al: “Segmentation of Fingerprint Images Using the Directional Image” Pattern Recognition, vol. 20, No. 4, pp. 429-435, Pergamon Journal Ltd., 1987.

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