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Automatic Detection of Bridge Deck Condition From Ground Penetrating Radar Images

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5 Author(s)
Zhe Wendy Wang ; Cedar Brook Corp Center, Iris ID Systems, Inc. (formerly LG Iris), Cranbury, NJ, USA ; Mengchu Zhou ; Gregory G. Slabaugh ; Jiefu Zhai
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Accurate assessment of the quality of concrete bridge decks and identification of corrosion induced delamination lead to economic management of bridge decks. It has been demonstrated that ground penetrating radar (GPR) can be successfully used for such purposes. The growing demand on GPR has brought into the challenge of developing automatic processes necessary to produce a final accurate interpretation. However, there have been few publications targeting at automatic detection of bridge deck delamination from GPR data. This paper proposes a novel method using partial differential equations to detect rebar (or steel-bar) mat signatures of concrete bridges from GPR data so that the delamination within the bridge deck can be effectively located. The proposed algorithm was tested on both synthetic and real GPR images and the experimental results have demonstrated its accuracy and reliability, even for diminished image contrast and low signal-to-noise ratio. Therefore, an accurate deterioration map of the bridge deck can be generated automatically.

Published in:

IEEE Transactions on Automation Science and Engineering  (Volume:8 ,  Issue: 3 )