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Analytical approach to augmenting site photos with 3D as-built bored pile models

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2 Author(s)
Fei Dai ; Dept. of Civil & Struct. Eng., Hong Kong Polytech. Univ., Hong Kong, China ; Ming Lu

To acquire information of the invisible underground infrastructure, non-destructive subsurface imaging technologies are generally utilized. In construction, the recorded data of as-built pile excavation is archived in Koden test result sheets. The test result is in the form of literal document and identified by the pile numbering. The graphical presentation of the test result may provide a clearer and easier way for engineers to investigate the pile alignment by merging the result onto the real site photo. The key is to devise a ¿virtual camera¿ to project the three-dimensional as-built model of the bored pile onto a two-dimensional view of the site scene, resulting in an augmented photo of the bored pile. The mathematical equations are formulated to allow for parameterization of the projection. A case of augmenting a ground site photo with as-built underground data for the purpose of investigation of alignment for a bored pile construction is demonstrated.

Published in:

Simulation Conference (WSC), Proceedings of the 2009 Winter

Date of Conference:

13-16 Dec. 2009