Abstract
This article explored the method of photo-based 3D modeling for the arc bridge structures by ordinary digital camera. Firstly, a series of processes had been studied by using ordinary digital camera that included the camera calibration, data acquisition, data management, and 3D orientation, setting scale and textures, etc., then the 3D model from photos can be built. The model can be measured, edited and close to the real structures. Take an interior masonry arch bridge as an example, build 3D model through the processes above by using camera HP CB350. The 3D model can be integrated with the loading conditions and material properties, to provide the detailed data for analyzing the structure. This paper has accumulated the experience in data acquisition and modeling methods. The methods can be applied to other structural analysis, and other conditions of 3D modeling with fast and economic advantages.
Published Version
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