Equipment for fingerprint pattern classification

Details Equipment for fingerprint pattern classification Equipment for fingerprint pattern classification

1993-09-09

1994-08-09

Couso, Yon J.

Image analysis

Histogram processing

For setting a threshold

382 4, G06K 900

Patent

active

053373693

ABSTRACT:
In fingerprint pattern classification, use of delta data is avoided, since there is a large probability of a fingerprint missing delta data. Ridge line shape around a core of a ridge direction pattern and ridge direction trend in a predetermined window are used for the classification.

REFERENCES:
patent: 4947442 (1990-08-01), Tanaka et al.
patent: 5040224 (1991-08-01), Hara
patent: 5105467 (1992-04-01), Kim et al.
patent: 5140642 (1992-08-01), Hsu et al.
patent: 5177792 (1993-01-01), Morita
Fumio Noda et al., "Automated Fingerprint Classifier", Waseda University, pp. 21-29, Mar. 1974.
Kenta Goto et al., "Fingerprint Classification by Distribution Pattern of Ridge Directions", Kogakuin University, pp. 23-29, 1988.

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