基于信息整合的建筑结构三维重建技术研究

建筑结构图的自动识别和三维重建对延续建筑CAD生成电子图的成果、使审图、算量、施工计划、钢筋放样等后续工序结束当前依赖于人工读图落后状态有十分重要的作用．分析了国内平面表达法建筑制图新标准中仍存在的建筑物三维信息描述的分散性和多样性，提出了工程图的信息提取和整合方法，实现了整体三维重建．

Research on 3D Reconstruction Technology for Architecture Based on Information Integration

Now lots of softwares such as AutoCAD has been built to build digital architecture drawings, but people have to read and understand the drawings themselves when checking and validating the drawings or surveying quantity, making plans of construction, and laying steels according to the designs. It is a serious island problem in the information technology of construction industry. So automatic recognition and 3D reconstruction on architecture structure drawings are quite important to improve the state. Because of the speciality of the architecture field, research on the buildings' 3D reconstruction is still little, and researchers in this field are few. This paper analyses the distribution and variety of the buildings' 3D information which are based on the new criterions of plane-based representation in China and are the main difficulties in reconstruction. Then some methods are discussed on retrieving information from forms that may be simple or very complicated and kinds of architecture components such as columns, beams, and slabs. Next a method is given on how to integrate the information distributed in the drawings. When the information has been integrated and the relations between components are rebuilt correctly, not only buildings' 3D reconstruction can be implemented, but a component's detailed 3D structure can be reconstructed. The methods discussed above have been applied in the software VHRecQS, and some examples of buildings' 3D model are given at the end of this paper. The following work is how to adapt the methods to more abnormal drawings.