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房顶是三维建筑的重要组成部分,房顶结构的识别是三维建筑综合算法实现和进行城市建筑空间分布模式分析的基础。分析了建筑房顶结构特点,提出了一种三维建筑分类的实用方法,针对不同房顶类型设计了相应的结构化表达方法,在此基础上提出了三维建筑房顶面信息提取算法,并进一步实现了房顶类型的识别。实验证明,该方法识别的准确性较高,能够满足进一步应用的需求。
The roof is an important part of the 3D building. The identification of the roof structure is the basis for the realization of the 3D building comprehensive algorithm and the analysis of the spatial distribution pattern of the urban building. This paper analyzes the structural characteristics of the building roof, puts forward a practical method of 3D building classification, and designs the corresponding structured expression method for different roof types. Based on this, the algorithm of extracting the information of the top surface of 3D building is proposed Realize the roof type identification. Experiments show that this method has higher accuracy of recognition and can meet the needs of further application.