| 摘要 |
<p>PURPOSE:To recognize handwritten characters with high precision by extracting straight segments from an input character pattern, and performing the recognition by using middle-point patterns of those strokes. CONSTITUTION:The picture signal of an input character on a slip 11 obtained through the scanning of a scanning means 12 is used to make the input character pattern into thin lines by a preprocessing means 13. Then, a stroke extracting means 14 finds feature points of terminal points, branch points, inflection points, etc., and then finds segments connecting those points. Further, the means 14 checks the direction of each segment at the feature points except the terminal points to concatenate the segments, thus extracting the strokes. Then, a stroke middle-point pattern from the center position of the stroke is generated and sent to a determining means 15. The means 15 finds the similarity of this stroke middle-point pattern to that of a previously stored reference character to decide on what is the input character.</p> |
