发明授权
US06778685B1 Two-stage local and global fingerprint matching technique for automated fingerprint verification/identification 有权
两级本地和全球指纹匹配技术,用于自动指纹验证/识别

  • 专利标题: Two-stage local and global fingerprint matching technique for automated fingerprint verification/identification
  • 专利标题(中): 两级本地和全球指纹匹配技术,用于自动指纹验证/识别
  • 申请号: US09611951
    申请日: 2000-07-06
  • 公开(公告)号: US06778685B1
    公开(公告)日: 2004-08-17
  • 发明人: Xudong JiangWei Yun YauWee Ser
  • 申请人: Xudong JiangWei Yun YauWee Ser
  • 优先权: SG9903290 19990708
  • 主分类号: G06K900
  • IPC分类号: G06K900
Two-stage local and global fingerprint matching technique for automated fingerprint verification/identification
摘要:
A method for determining a degree of match between a search fingerprint and a reference fingerprint comprises the following steps: a) Extracting at least one first search feature from a first region of said search fingerprint thereby forming a local search feature vector, b) Extracting at least one second search feature from a second region of said search fingerprint thereby forming a global search feature vector, whereby said second region comprises said first region, c) Determining a first similarity degree by comparing said local search feature vector with a local reference feature vector, d) Determining a second similarity degree by comparing said global search feature vector with a global reference feature vector of said reference fingerprint and using said first similarity degree, e) Determining said degree of match from said second similarity degree.
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