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发明名称
Pattern extraction apparatus
摘要
A pattern extraction apparatus computes the convexity/concavity of an input pattern, regards a pattern having large convexity/concavity as a character, and regards a pattern having small convexity/concavity as a ruled line.
申请公布号
US6434270(B1)
申请公布日期
2002.08.13
申请号
US19980021540
申请日期
1998.02.10
申请人
发明人
分类号
G06K9/20;G06K9/34;(IPC1-7):G06K9/34
主分类号
G06K9/20
代理机构
代理人
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