相关实验视频

Updated: Jan 13, 2026

Photorealistic Learned Landscapes for Augmented Reality

Photorealistic Learned Landscapes for Augmented Reality

Published on: June 27, 2025

一个由BIM指导的虚拟到真实框架,用于构件级语义细分建筑工地点云的构件级语义细分

Yiquan Zou¹, Tianxiang Liang¹, Jafri Syed Riaz Un Nabi²

¹School of Civil Engineering, Architecture and the Environment, Hubei University of Technology, 28 Nanli Rd, Wuhan 430068, China.

Sensors (Basel, Switzerland)

|January 10, 2026

概括

本研究介绍了一种新的BIM引导的虚拟到现实框架,用于LiDAR点云语义细分,消除了对现实世界的注释的需求. 该方法有效地弥合了合成数据和真实数据之间的差距,实现了精确的扫描到BIM工作流.

科学领域:

计算机视觉和机器学习
地缘空间信息系统 (Geospatial Information Systems) 是一个地理空间信息系统.
建筑信息学建筑信息学

背景情况:

对于扫描到BIM (建筑信息建模) 工作流程来说,LiDAR点云语义细分至关重要.
目前的深度学习方法需要大量注释的现实世界数据,这是昂贵的,并且由于遮蔽和噪音而难以获得.
现有的方法在合成数据和现实数据之间的领域转移方面扎.

研究的目的:

提出一个新的BIM引导的虚拟到现实 (V2R) 框架,用于LiDAR点云的语义细分.
通过仅在合成数据上进行培训,消除对现实世界的注释的需求.
提高建筑环境中扫描到BIM工作流程的准确性和稳定性.

主要方法:

从BIM模型直接生成一个大规模的合成点云 (SPC) 数据集,并使用组件级标签.
开发一个多功能融合网络,将全球环境的点上下文变压器 (PCT) 和局部几何的PointNet++结合起来.
实施可学习的点云增强模块和多级域调整策略,以解决域差异.

主要成果:

在真实施工数据上,V2R框架实现了高性能,整体准确率为70.89%,平均IOU为53.14%.
拟议的Fusion模型在场景度量和组件级分数上始终优于基线模型.
在各种真实建筑场景和楼层中表现出稳定的性能,验证了BIM生成的SPC的有效性.

结论:

以BIM为指导的V2R框架成功地实现了准确的语义细分,而不需要现实世界的注释.
由BIM生成的合成点云对于训练用于建筑应用的强大的深度学习模型是有效的.
该框架显示了自动化BIM现实更新和施工现场监测的巨大潜力.

关键词:

以BIM为指导的合成点云.建筑现场的理解建筑现场的理解智能建筑监控智能建筑监控合成点云的生成过程虚拟到真实 (V2R) 的语义细分是虚拟到真实 (V2R) 的语义细分.

更多相关视频

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Published on: October 24, 2025

A Method for 3D Reconstruction and Virtual Reality Analysis of Glial and Neuronal Cells

A Method for 3D Reconstruction and Virtual Reality Analysis of Glial and Neuronal Cells

Published on: September 28, 2019

相关概念视频

Virtual Work for a System of Connected Rigid Bodies

Virtual Work for a System of Connected Rigid Bodies

Virtual work is a powerful method used to solve problems involving several connected rigid bodies. When the system is in equilibrium, virtual work is zero. This allows the calculation of the resulting forces when a system undergoes a virtual displacement. When attempting to analyze such a system, first, use a free-body diagram, where an independent coordinate represents the configuration of the links, and mark its deflected position resulting from the positive virtual displacement.
Next,...

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...

Topographic Surveying and Contours

Topographic Surveying and Contours

Topographic surveying is critical for documenting the Earth's surface, focusing on capturing elevations, slopes, and natural and man-made features. It is essential in construction planning, water resource management, and land-use analysis. The primary outcome of such surveys is a topographic map, which uses contour lines to visually represent the shape and slope of the terrain, providing valuable insights into the landscape's characteristics.Contour lines are fundamental to understanding the...