Automated Point Cloud Object Classification

自动点云对象分类

• 批准号: 515334-2017
• 负责人: Lichti, Derek
• 金额: $ 1.82万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640557
• 关键词: Automated; Point; Cloud; Object; Classification

Delays and cost over-runs in large capital construction projects are often caused by the dimensionalincompatibility of pre-fabricated components such as pipes and couplings. The verification of thesecomponents' dimensions is recognized as a critical process to ensure smooth, on-budget project execution andto eliminate the need for rework. Components must be compared to the original design to ensure as-builtcompliance and virtually matched with the construction site to ensure proper fit upon delivery. Terrestrial laserscanning instruments provide a means to rapidly capture accurate, three-dimensional (3D) datasets (pointclouds) of pre-fabricated components. Current practice for transforming point clouds into 3D models requiresmanual intervention by experienced users. This project aims to automate the process of producing 3D modelsfrom point cloud data. Geometric primitives such as disks and cylinders will be recognized from the pointcloud data contaminated by data clutter, occlusions and noise. The efficient implementation of the proposedsoftware system will benefit the supporting organization and the Canadian construction industry as a whole in anumber of ways. Providing an automatic means for checking dimensional compliance will lead to reduced cutand weld rework will be reduced, more effective use of project manager time, higher quality inspections andminimized construction claims and disputes.

在大型基建项目中，由于管道和联轴器等预制部件的尺寸不兼容，往往会造成延误和成本超支。这些部件尺寸的验证被认为是确保顺利、按预算执行项目并消除返工需求的关键过程。组件必须与原始设计进行比较，以确保建成时符合要求，并与施工现场基本匹配，以确保交付时合适。地面激光扫描仪器提供了一种快速捕获预制部件的精确三维（3D）数据集（点云）的方法。目前将点云转换为3D模型的实践需要有经验的用户进行手动干预。该项目旨在自动化从点云数据生成3D模型的过程。从被数据杂波、遮挡和噪声污染的点云数据中识别出磁盘和柱面等几何基元。建议的软件系统的有效实施将在许多方面使支持组织和加拿大建筑行业整体受益。提供一种自动检查尺寸合规性的方法将减少切割和焊接返工，更有效地利用项目经理的时间，提高质量检查，并最大限度地减少施工索赔和纠纷。