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

Content Provider	IEEE Xplore Digital Library
Author	Fei Dai Ming Lu
Copyright Year	2009
Description	Author affiliation: Dept. of Civil and Structural Engineering, Hong Kong Polytechnic University, Hong Kong, China (Fei Dai; Ming Lu)
Abstract	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.
Starting Page	2691
Ending Page	2702
File Size	977106
Page Count	12
File Format	PDF
ISBN	9781424457700
e-ISBN	9781424457717
DOI	10.1109/WSC.2009.5429259
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Testing Image analysis Layout Equations Buildings Photography Project management Information analysis Structural engineering Merging
Content Type	Text
Resource Type	Article

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