发明名称 System and method for counting ridges in a captured print image
摘要 A system and method for counting ridges in a captured print image frame is described. A pixel path through the captured print image frame is traversed. A hysteresis band for the pixel path is determined. A number of crossings of the determined hysteresis band is counted while traversing the pixel path. A number of print ridges based on the counted number of hysteresis band crossings is determined.
申请公布号 US2006133656(A1) 申请公布日期 2006.06.22
申请号 US20060341377 申请日期 2006.01.30
申请人 CROSS MATCH TECHNOLOGIES, INC. 发明人 CANNON GREGORY L.;SMITH DAVID C.
分类号 G06K9/00;A61B17/00;A61B17/12 主分类号 G06K9/00
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