【摘要】 通过分析工程图纸、表格、工程曲线图表图像的特征,提出一种基于节点分布和分类的曲线图表矢量化算法。该算法通过逐步分析获得曲线图表图像的节点信息,从而确定图像的整体拓扑结构,并通过曲线的跟踪方向、跟踪惯性、跟踪偏差矫正等方法较好地处理了交点畸变和分支区域重合等复杂情况,算法具有抗噪音性强、适用性好等特点。更多还原

【Abstract】 By analyzing the difference among engin ee ring drawings,form drawings and chart drawings,a new node-based vectorization algorithm for scan image of chart used in engineering is proposed.In this algo rithm,the global topological structure of chart drawings is get,by analyzing a nd sorting the nodes in this chart.Much technology for example trace direction ,trace inertia,rectify of trace is applied in this algorithm,in order to deal with node deformation and node superposition.Experimental results indicate tha t the algorithm is effective and robust.更多还原