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US 7,068,824 B2Granted
Fingerprint matching method and apparatus
AssigneeNEC Corporation
InventorsMasanori Hara, Kan Sato
Life of this patent
Estimating the term…
Abstract
In a fingerprint image, this fingerprint matching method extracts as skeleton stability the area of a zone which is drawn around a pre-determined attention point and which does not contain any minutiae that are bifurcations or endpoints in ridges forming a fingerprint pattern, and calculates similarity by collating said skeleton stability thus extracted with skeleton stability already registered.
Claims18
A fingerprint matching method, comprising the steps of:
- in a fingerprint image, extracting as skeleton stability the area of a zone which is drawn around a pre-determined attention point and which does not contain any minutiae that are bifurcations or endpoints in ridges forming a fingerprint pattern;
- and
- calculating similarity by collating said skeleton stability thus extracted with skeleton stability already registered.
A fingerprint matching apparatus, comprising:
- a fingerprint image inputting means into which a fingerprint image is input;
- a skeleton stability extracting means for, in relation to the fingerprint image input into said fingerprint image inputting means, extracting as skeleton stability for use in collation of fingerprints the area of a zone which is drawn around a pre-determined attention point and which does not contain any minutiae that are bifurcations or endpoints in ridges forming a fingerprint pattern;
- and
- a skeleton stability collating means for calculating similarity by collating said skeleton stability thus extracted with skeleton stability already registered.
1 more element
A fingerprint matching program that is run on a computer for matching fingerprints, comprising the functions of:
- in a fingerprint image, extracting as skeleton stability the area of a zone which is drawn around a pre-determined attention point and which does not contain any minutiae that are bifurcations or endpoints in ridges forming a fingerprint pattern;
- and
- calculating similarity by collating said skeleton stability thus extracted with skeleton stability already registered.
Dependencies are inferred from the claim text.