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Method and apparatus for matching fingerprints

  • US 4,947,442 A
  • Filed: 05/24/1989
  • Issued: 08/07/1990
  • Est. Priority Date: 05/24/1988
  • Status: Expired due to Term
First Claim
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1. A method for the matching of input fingerprints with stored records of identified fingerprints, said records comprising collation minutiae of both characteristic and non-characteristic types, comprising:

  • an inputting step to enter an input fingerprint image comprising collation minutiae; and

    a collating step to check collation minutiae of said input fingerprint image with said collation minutiae already registered in a list of collation minutiae records, said collating step comprising a search collation minutiae selecting step for selecting specific collation minutiae records in succession by referring to said list of collation minutiae records, a local area setting step for setting a position on said input fingerprint image corresponding to a collation position, a searching step for searching collation minutiae, and a detecting step for detecting both characteristic and non-characteristic minutiae.

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