发明申请
US20090003705A1 Feature Design for HMM Based Eastern Asian Character Recognition
失效
基于HMM的东亚字符识别功能设计
- 专利标题: Feature Design for HMM Based Eastern Asian Character Recognition
- 专利标题(中): 基于HMM的东亚字符识别功能设计
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申请号: US11772032申请日: 2007-06-29
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公开(公告)号: US20090003705A1公开(公告)日: 2009-01-01
- 发明人: Yu Zou , Ming Chang , Shi Han , Dongmei Zhang , Jian Wang
- 申请人: Yu Zou , Ming Chang , Shi Han , Dongmei Zhang , Jian Wang
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 主分类号: G06K9/18
- IPC分类号: G06K9/18
摘要:
An exemplary method for online character recognition of East Asian characters includes acquiring time sequential, online ink data for a handwritten East Asian character, conditioning the ink data to produce conditioned ink data where the conditioned ink data includes information as to writing sequence of the handwritten East Asian character and extracting features from the conditioned ink data where the features include a tangent feature, a curvature feature, a local length feature, a connection point feature and an imaginary stroke feature. Such a method may determine neighborhoods for ink data and extract features for each neighborhood. An exemplary Hidden Markov Model based character recognition system may use various exemplary methods for training and character recognition.