自动化将点云转为BIM模型，速度比现有工具快7倍
Open-source automatic pipeline for efficient conversion of large-scale point clouds to IFC format
- 基于真实墙面分割与开洞检测，实现全自动建模
- 处理速度达竞品7倍，支持非正交结构
- 开源易用，适合建筑重建与数字化项目
建筑信息模型（BIM）是老旧建筑可持续修复的关键。但传统建模依赖人工处理激光扫描或摄影测量生成的无序点云数据。本文提出Cloud2BIM，一个开源软件工具，可自动将点云转换为符合工业基础类（IFC）标准的BIM模型。该工具整合了先进的墙体与楼板分割、开洞检测及基于真实墙面的房间分区算法，形成完整自动化流程。相比现有工具，它无需计算量大且需校准的RANSAC方法，支持非正交几何结构，处理速度提升至竞品的7倍。通过基准数据集系统验证，Cloud2BIM具备高效、易用与可扩展性，仅需极少用户干预即可完成整栋建筑点云数据向IFC格式的转换。
原文摘要 · Abstract (English)
Building Information Modeling (BIM) is an essential component in the sustainable reconstruction and revitalization of ageing structures. However, model creation usually relies on laborious manual transformation of the unstructured point cloud data provided by laser scans or photogrammetry. This paper presents Cloud2BIM, an open-source software tool designed to automate the conversion of point clouds into BIM models compliant with the Industry Foundation Classes (IFC) standard. Cloud2BIM integrates advanced algorithms for wall and slab segmentation, opening detection, and room zoning based on real wall surfaces, resulting in a comprehensive and fully automated workflow. Unlike existing tools, it avoids computationally- and calibration-intensive techniques such as RANSAC, supports non-orthogonal geometries, and provides unprecedented processing speed-achieving results up to seven times faster than fastest competing solutions. Systematic validation using benchmark datasets confirms that Cloud2BIM is an easy-to-use, efficient, and scalable solution for generating accurate BIM models, capable of converting extensive point cloud datasets for entire buildings into IFC format with minimal user input.
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