发明名称 Fingerprint symmetry axis extraction method and fingerprint recognition method using fingerprint symmetry axis
摘要 A fingerprint symmetry axis extraction method is provided. The method includes detecting a core point of a fingerprint, setting imaginary symmetry axes intersecting the core point, and extracting an actual fingerprint symmetry axis from the imaginary symmetry axes. The actual fingerprint symmetry axis is one that can provide the largest symmetry measure being obtained between ridge range directions in paired blocks facing each other.
申请公布号 US2005207625(A1) 申请公布日期 2005.09.22
申请号 US20050086872 申请日期 2005.03.21
申请人 LG ELECTRONICS INC. 发明人 CHO SANG H.;KIM TAEK S.
分类号 G06K9/00;(IPC1-7):G06K9/00;G06K9/36 主分类号 G06K9/00
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