Fingerprint/palmprint image processor and processing method

Image analysis – Applications – Personnel identification

Reexamination Certificate

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C382S254000, C356S071000, C340S005830, C902S003000

Reexamination Certificate

active

06961451

ABSTRACT:
The region feature judging part judges whether local regions are regions including ridges only or regions including a mixture of creases and ridges, and the suitable ridge image selecting part selects images showing ridges among ridge candidate images based on evaluation criteria adapted to each of the crease and ridge mixed regions and ridge exclusive regions.

REFERENCES:
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patent: 5426708 (1995-06-01), Hamada et al.
patent: 5937082 (1999-08-01), Funada
patent: 6118891 (2000-09-01), Funada
patent: 2001/0036300 (2001-11-01), Xia et al.
patent: 0 646 886 (1995-04-01), None
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patent: 0 780 780 (1997-06-01), None
patent: 9-167230 (1997-06-01), None
patent: 2765335 (1998-03-01), None
Funada et al., “Feature Extraction Method for Palmprint Considering Elimination of Creases,” Pattern Recognition, Aug. 1998, Proceedings 14th International Conference, Los Alamitos, CA.
D. Vernon, “Automatic Detection of Secondary Creases in Fingerprints,” Oct. 1993 Optical Engineering, Soc. Of Photo-Optical Instrumentation Engineers, vol. 32, No. 10, pp. 2616-2623.

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