[1]徐照,康蕊,孙宁.基于IFC标准的建筑构件点云信息处理方法[J].东南大学学报(自然科学版),2018,48(6):1068-1075.[doi:10.3969/j.issn.1001-0505.2018.06.012]
 Xu Zhao,Kang Rui,Sun Ning.IFC-based point-cloud information processing method for structural elements[J].Journal of Southeast University (Natural Science Edition),2018,48(6):1068-1075.[doi:10.3969/j.issn.1001-0505.2018.06.012]
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基于IFC标准的建筑构件点云信息处理方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
48
期数:
2018年第6期
页码:
1068-1075
栏目:
建筑学
出版日期:
2018-11-20

文章信息/Info

Title:
IFC-based point-cloud information processing method for structural elements
作者:
徐照康蕊孙宁
东南大学土木工程学院, 南京211189
Author(s):
Xu Zhao Kang Rui Sun Ning
School of Civil Engineering, Southeast University, Nanjing 211189, China
关键词:
点云 IFC 数据映射 建筑构件 可视化
Keywords:
point cloud IFC(industry foundation classes) data mapping structural elements visualization
分类号:
TU205
DOI:
10.3969/j.issn.1001-0505.2018.06.012
摘要:
为了实现既有建筑结构三维快速建模的过程,提出了一种由原始点云数据采集到形成IFC数据模型的处理流程,为实现网页可视化管理提供基础.原始点云数据经过初步分离、精细切割处理后,利用去噪优化方法有效降低数据大小,优化点云空间位置关系,进而进行高质量点云曲面重构.使用表面重建算法完成中间格式OBJ数据的生成,实现由点到面的转换.接着提出一种面向建筑构件的编码体系,将编码与几何信息一起扩展转换为符合IFC标准的数据格式,进一步进行网页端渲染和信息管理.结果表明,所提出的转换和处理方法可以压缩点云数据模型文件,形成网格表面,实现构件实体化,并最终转换成为IFC标准格式数据模型文件,从而验证了整个分析方法的有效性和可行性.
Abstract:
To realize the process of 3D rapid modeling of existing building structures, a data file processing method is proposed from collecting the original point cloud data to forming the IFC(industry foundation classes)-compliant document. The method can provide a foundation for the Webpage visualization management. After the initial separation and fine cutting process in the processing of the original point cloud data, a denoising method is used to effectively reduce the data size, optimize the spatial mapping relationship in the point cloud model, and support high-quality point cloud surface reconstruction. The surface reconstruction algorithm is applied to complete the generation of intermediate form of OBJ data, which realizes the point-to-surface conversion. Then, an encoding system for building components is proposed to convert the coding and geometric information into the IFC format files. Furthermore, the result is used for web page rendering and information management. The experimental results indicate that the proposed converting and processing method can compress the point-cloud data file, create grid surfaces to realize component substantiation, and finally generate IFC format data files. Thus, the effectiveness and the practicability of the proposed method are proved.

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2018-05-16.
作者简介: 徐照(1982—),男,博士,副教授,bernardos@163.com.
基金项目: 国家重点研发计划资助项目(2016YFC0702001-06).
引用本文: 徐照,康蕊,孙宁.基于IFC标准的建筑构件点云信息处理方法[J].东南大学学报(自然科学版),2018,48(6):1068-1075. DOI:10.3969/j.issn.1001-0505.2018.06.012.
更新日期/Last Update: 2018-11-20