Fingerprint identification apparatus and fingerprint identification method
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United States of America Patent
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-
Jul 24, 2007
Grant Date -
Jan 2, 2003
app pub date -
May 30, 2002
filing date -
May 31, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
By employing template matching using a collation image which is obtained by using a proper technique to binarize an input digital image for fingerprint identification, and a plurality of templates which are recorded beforehand, a fingerprint identification apparatus and method determine whether identity is established between the collation image and each of the recorded images from which recorded templates are extracted. Instead of checking positional relationships among all addresses having high degrees of matching detected for each template, positional relationship checking is performed between addresses detected about adjacent templates. This can greatly reduce the number of combinations for matching, and enables rapid processing. The fingerprint identification apparatus and method are resistant to a change in finger shape since they perform processing for physically close templates, compared with the case of performing processing for separate templates.
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