Constructing as-is BIMs from progressive scan data

作者：Te Gao, Burcu Akinci, Semiha Ergan, James H. Garrett · 发表于：Gerontechnology · 年份：2012 · DOI：10.4017/gt.2012.11.02.500.00 · 被引用次数：14 · 研究领域：3D Surveying and Cultural Heritage、Remote Sensing and LiDAR Applications、BIM and Construction Integration

Purpose Building Information Models (BIMs) have the potential to support various engineering applications (e.g., build-ing energy analysis, renovation and retrofit planning, and facility management) in the facility operation phase. It is im-portant to keep the information stored in as-is BIMs, accurate and up-to-date. Laser-scanning technology is able to cap-ture the as-is geometric condition of a facility in a timely manner. Hence, the laser scan data can be used as the refer-ence to construct an as-is BIM. However, due to the occlusions caused by furniture, machinery, and building compo-nents, a single laser scan might only capture a partial view of a facility, which limits the value of laser scan data in the construction of as-is BIMs. Method In order to overcome this limitation, we propose to perform multiple laser scans of a facility during the construction, renovation or retrofit processes, and fuse the laser scan data captured at different times to create as-is BIMs. The purpose of this paper is to develop a formal approach to evaluate and compare the progressive laser scan data, and identify the value of using progressive laser scan data to create an accurate (i.e., the as-is BIM represents the actual as-is geometric condition of the facility) and complete (i.e., the as-is BIM contains all the compo-nents required to be modeled for the facility) as-is BIM. Results & Discussion We conducted a case study to present the process of creating an as-is BIM from progr...