发明授权
- 专利标题: Method of normalizing handwritten symbols
- 专利标题(中): 手写符号归一化方法
-
申请号: US154150申请日: 1993-11-18
-
公开(公告)号: US5537489A公开(公告)日: 1996-07-16
- 发明人: Frank W. Sinden , Gordon T. Wilfong
- 申请人: Frank W. Sinden , Gordon T. Wilfong
- 申请人地址: NJ Murray Hill
- 专利权人: AT&T Corp.
- 当前专利权人: AT&T Corp.
- 当前专利权人地址: NJ Murray Hill
- 主分类号: G06K9/00
- IPC分类号: G06K9/00 ; G06K9/42 ; G06K9/62 ; G06K9/36
摘要:
A handwritten test symbol, such as an alphabetic character, a word or a signature, written on a digitizing tablet is normalized by comparison with a model symbol to determine the transformation necessary to best fit the test symbol to the model symbol. Such transformation is then applied to normalize the test symbol. Shape information in the test symbol is preserved during such normalization. In accordance with one aspect of the invention, the model symbol is a line segment. In accordance with another aspect of the invention, the model symbol is an example of the symbol being normalized. Such normalization can be used as a preprocessing step in applications such as character recognition, text recognition or signature verification.
公开/授权文献
信息查询