【摘要】 为减少绘图设计软件繁琐的操作步骤,提出基于图元几何特征的在线手绘流程图识别方法.该方法首先识别用户笔画线元,对识别出的线元进行拟合并记录其属性信息,然后以流程图基本图形为单位,利用构成图元的笔画几何特征及笔画间的几何关系识别具体图形.整个识别过程简单、快捷、准确性较高,对用户绘图笔画顺序无要求,适用于不同用户的绘图习惯.更多还原

【Abstract】 To reduce the complex operation steps in graphics designing and drawing software, an online hand-sketched graphics recognition method is proposed for flow chart based on geometric features of graphics unit. The approach recognizes user’s sketched graphics through firstly identifying the kinds of lines for inputting strokes, regulating the strokes to geometric lines and recording the attribute information of the strokes. Then user’s sketched graphics are identified by applying geometric features of the strokes and geometric relations between strokes in graphics unit. The whole recognition process is simple and agile with high veracity. And the method doesn’t require the fixed order of sketched strokes and is applicable to different users.更多还原