Details

Autor(en) / Beteiligte

• Abdel-Qader, Ikhlas
• Abu-Amara, Fadi
• Abudayyeh, Osama Y.
• Mander, John

Titel

Fractals and Independent Component Analysis for Defect Detection in Bridge Decks

Ist Teil von

• Advances in Civil Engineering, 2011-01, Vol.2011 (2011), p.115-128

Ort / Verlag

Cairo, Egypt: Hindawi Limiteds

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We present in this paper a framework for the automatic detection and localization of defects inside bridge decks. Using Ground-Penetrating Radar (GPR) raw scans, this framework is composed of a feature extraction algorithm using fractals to detect defective regions and a deconvolution algorithm using banded-independent component analysis (ICA) to reduce overlapping between reflections and to estimate the radar waves travel time and depth of defects. Results indicate that the defects' estimated horizontal location and depth falling within 2 cm (76.92% accuracy) and 1 cm (84.62% accuracy) from their actual values.