Application of photogrammetry: 3D modeling of a historic building
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Over the past few years, the use of 3D digitization and modeling for 3D remodeling of cultural heritage has become increasingly common. The most commonly used technologies include surveys, CAD tools, and traditional photogrammetry with control points. These approaches are, however, time consuming and can be costly, and therefore may be impractical for large-scale sites. Modeling in 3D using point clouds from laser-scanned data and more automated image-based modeling have become possible. Photogrammetry is one of the most cost-effective approaches we could use to gather the physical information of an object, because data can be collected using a consumer level digital camera. However, it also has its drawbacks in the level of accuracy. Wondering whether the 3D model created by using photos would be acceptable for the use of construction planning, we created a 3D model of a historic building on our campus, which was under renovation, and investigated how the 3D model was appreciated by architects and contractors working on the renovation project. We measured the accuracy level of the 3D model and identified the deficiencies of this approach. This paper presents our findings and responses from the construction professionals who reviewed the 3D model in the BIM/CAVE. 2014 American Society of Civil Engineers.
