基于阈值连通的视图划分算法研究

在工程图矢量化系统中，研究如何提高输入数据的质量，这一课题开展工程图样R—V转换的前期处理技术研究，提出了基于阈值连通的视图划分算法。其基本思想是根据工程图绘制规则，提出了阈值邻接和阈值连通的概念，将工程图样的基本视图、技术要求以及其他视图等从整体工程图样中识别与区分，再进行标识。并用所提出的算法构建了基于图样绘制规则的自动区域化这个图纸扫描转换系统的前置模块。通过该模块提高图纸扫描转换系统输入数据的质量，从而提高了R-V转换精度，并为后续的智能识别与三维重建提供语义上的指导。

Studies on Threshold-connected-region-based View Compartmentalized Algorithm

The earlier period processing engineering of vectorization engineering drawings is researched revolving researching on improving input data qualities, associating engineering drawings intelligence input and recognition system. An algorithm called the view compartmentalized algorithm which based on the threshold connected re- gion. The basic idea of the algorithm is according as drawing rules and their semantemes, to recognize and to mark the basic views, technical requirement as well as other views from the overall engineering drawings. The module that is designed using the algorithm acts as the prefixal module engineering drawings intelligence input and recognition system. Enable the system through these the module to get the high grade data-input, thus not only increases R-V conversion precision, but also provides in semantic for the following intelligent recognition and the three dimensional reconstruction the instruction.