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江    浩 ¹   ,   齐慧芳²

( 1 .  广州市第一装修有限公司 ，广东 广州 510060; 2. 广州科技贸易技术学院 ，广东 广州 511442)

摘   要 ：采用目前方法生成建筑结构平面图空间数据时，无法获取建筑结构对象特征，存在还原性差、VRI 值低和完全度低的问题， 因此提出基于对象特征的建筑结构平面图空间数据自动生成方法。采用射线跟踪算法实现目标模型到图像平面的几何映射，在电磁散射模型的基础上获得后向散射图 。采用主成分分析方法获取后向散射图中的建筑结构对象特征，根据提取的特征通过卷积运算生成建筑结构平面图空间数据 。试验结果表明，所提方法的还原性好 、VRI 值高、完全度高。

关键词 ：建筑结构 ；平面图 ；空间数据生成 ；射线跟踪算法 ；对象特征

中图分类号 ：TP751           

文献标志码 ：A            

文章编号 ：1005- 8249  (2023)   04- 0128- 06

DOI : 10. 19860/j . cnki . issn1005- 8249. 2023 . 04. 021

JIANG Hao ¹  ,   QI Hui Fang²

( 1 . Guangzhou No. 1  Decoration  Co. ，Ltd. ，Guangzhou 510060 ,   China;

2. Guangzhou Vocational College of Technology & Business ,   Guangzhou 511442 ,   China)

Abstract: When the current method is used to generate spatial data of building structure plan, the object characteristics of building structure can not be obtained, and there are some problems such as poor reducibility, low VRI value and low completeness. Therefore, an automatic generation method of spatial data of building structure plan based on object characteristics is proposed. The ray tracing algorithm is used to realize the geometric mapping from the target model to the image plane, and the backscatter map is obtained based on the electromagnetic scattering model. The principal component analysis method is used to obtain the features of the building structure object in the backscatter map. According to the extracted features, the spatial data of the building structure plan is generated by convolution operation. The experimental results show that the proposed method has good reducibility, high VRI value and high completeness.

Keywords: building structure; floor plan; spatial data generation; ray tracing algorithm; object characteristics

作者简介 ：江浩  ( 1984—) ,   男 ，硕士 ， 中级工程师 ，研究方向 ：工程管理和安全管理。

收稿日期 ：2022- 07-25