发明申请
- 专利标题: Stroke segmentation for template-based cursive handwriting recognition
- 专利标题(中): 基于模板的草书手写识别的笔画分割
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申请号: US10704785申请日: 2003-11-10
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公开(公告)号: US20050100214A1公开(公告)日: 2005-05-12
- 发明人: Qi Zhang , Henry Rowley , Ahmad Abdulkader , Angshuman Guha
- 申请人: Qi Zhang , Henry Rowley , Ahmad Abdulkader , Angshuman Guha
- 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 ; G06K9/22 ; G06K9/34
摘要:
Ink strokes of cursive writing are segmented to make the cursive writing more like print writing, particularly with respect to the number of strokes of a character. A stroke-segmentation module first finds the local extrema points on a stroke of input ink. Then the local extrema points are stepped through, two (or three) at a time. The stroke-segmentation module may compare the three (or four) ink segments that are adjacent to the two (or three) local extrema points to a set of predefined stroke-segmentation patterns to find a closest matching pattern. Strokes are then segmented based on a stroke-segmentation rule that corresponds to the closest matching pattern. Additional stroke segmentation may be performed based on the change of curvature of the segmented ink strokes. Then, a character-recognition module performs character recognition processing by comparing the segmented ink strokes to prototype samples at least some of which have been similarly segmented.
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