发明授权
US5768420A Method and apparatus for handwriting recognition using invariant features
失效
使用不变特征进行手写识别的方法和装置
- 专利标题： Method and apparatus for handwriting recognition using invariant features
- 专利标题（中）： 使用不变特征进行手写识别的方法和装置
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申请号： US525441申请日： 1995-09-07
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公开(公告)号： US5768420A公开(公告)日： 1998-06-16
- 发明人: Michael Kenneth Brown , Jianying Hu , William Turin
- 申请人： Michael Kenneth Brown , Jianying Hu , William Turin
- 申请人地址： NJ Murray Hill
- 专利权人： Lucent Technologies Inc.
- 当前专利权人： Lucent Technologies Inc.
- 当前专利权人地址： NJ Murray Hill
- 主分类号： G06K9/62
- IPC分类号： G06K9/62 ; G06K9/22 ; G06K9/52 ; G06K9/68 ; G10L15/18 ; G06K9/00
摘要：
Handwriting recognition which is invariant with respect to translation, rotation and scale is achieved with a new feature signal, ratio of tangents, and a new application of the normalized curvature feature. Use of these features is optimized by augmenting the ratio of tangents with the sign of local curvature and weighing each feature signal with its relative discriminative power.
公开/授权文献
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