I-Corps: Videogrammetric Roof Surveying System for Digital Fabrication of Sheet Metal Roof Panels

I-Corps：用于金属板屋顶板数字化制造的视频测量屋顶测量系统

• 批准号: 1217201
• 负责人: Reginald DesRoches
• 金额: $ 5万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-03-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1217201&HistoricalAwards=false
• 关键词: Corps; Videogrammetric; Roof; Surveying; System

This proposal investigates a structured hypothesis / validation approach to develop a disposition plan for a video-based roof-surveying technology. This technology is capable of extracting as-built dimensions of a roof structure using a less expensive, faster, safer, and simpler method compared to the existing techniques, while being able to satisfy the required level of accuracy. If successful, it will be the world's first video-based roof surveying method that has the mentioned features at the same time. When using it, a roofing contractor will simply collect stereo videos from a roof using a camera set and send it to a server via the 3G/4G capability of a Tablet PC. At this server, different forms of visual features are detected and matched across different views of the scene; this allows chaining the available information in the videos and extracting the corresponding 3D information. A 3D wire diagram of the target roof is finally generated which includes as-built dimensions of each plane. In the sheet metal roofing industry, the output of this technology can be imported to an on-site roll forming machine to roll form and cut sheet metal coil into precise, ready-to-install roof panels. This project has the potential to bring the roofing trade up to the modern standards of CAD/CAM used in many other industries and has the potential to address the inherent deficiencies of the existing methods for roof surveying. Compared to tape measuring, the use of this technology will significantly reduce measuring costs and also eliminate the exposure of employees to fall hazards, thereby decreasing the very high number of occupational injuries and fall deaths which occur in the roofing industry (7 percent of private construction fatalities in 2009). The simplicity of the method will remove the need for trained surveyors who are required for surveying with a total station. The video-based roof surveying technology could be used by virtually any roofing contractors worldwide. Beyond the initial target industry (i.e., roofing), it could be adapted to many of the other building trades where as-built documentation is required to build components. It has also the potential to be used in any indoor and outdoor application that requires tape measuring such as commercial build-outs, kitchen and bathroom cabinets or countertops, flooring, window installation, and siding. This, in turn, will result in time and cost savings, which could improve the efficiency of the construction industry.

该提案研究了结构化假设/验证方法，以制定基于视频的屋顶测量技术的处置计划。与现有技术相比，该技术能够使用更便宜、更快、更安全和更简单的方法提取屋顶结构的竣工尺寸，同时能够满足所需的精度水平。如果成功，这将是世界上第一个同时具有上述功能的基于视频的屋顶测量方法。使用时，屋顶承包商只需使用摄像机组从屋顶收集立体视频，然后通过平板电脑的 3G/4G 功能将其发送到服务器。在该服务器上，不同形式的视觉特征在场景的不同视图中被检测和匹配；这允许链接视频中的可用信息并提取相应的 3D 信息。最终生成目标屋顶的 3D 接线图，其中包括每个平面的竣工尺寸。在金属板屋顶行业，该技术的输出可以导入现场滚压成型机，以滚压成型并将金属板卷切割成精确的、可立即安装的屋顶板。该项目有可能使屋顶行业达到许多其他行业使用的 CAD/CAM 现代标准，并有可能解决现有屋顶测量方法的固有缺陷。与卷尺相比，使用该技术将显着降低测量成本，并消除员工跌倒危险，从而减少屋顶行业中发生的大量职业伤害和跌倒死亡人数（2009 年私人建筑死亡人数的 7%）。该方法的简单性将消除对使用全站仪进行测量所需的训练有素的测量员的需要。基于视频的屋顶测量技术几乎可供全球任何屋顶承包商使用。除了最初的目标行业（即屋顶）之外，它还可以适应许多其他建筑行业，在这些行业中，需要竣工文件来构建组件。它还可以用于任何需要卷尺测量的室内和室外应用，例如商业建筑、厨房和浴室柜或台面、地板、窗户安装和壁板。反过来，这将节省时间和成本，从而提高建筑行业的效率。