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Sensors 2009, 9(3), 1471-1484;

Identification of Earthquake Induced Damage Areas Using Fourier Transform and SPOT HRVIR Pan Images

Istanbul Technical University, Faculty of Civil Engineering, Department of Geodesy and Photogrammetry, Maslak, 34469, Istanbul, Turkey
Received: 3 January 2009 / Revised: 20 February 2009 / Accepted: 28 February 2009 / Published: 3 March 2009
(This article belongs to the Section Remote Sensors)
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A devastating earthquake with a magnitude of Mw 7.4 occurred on the North Anatolian Fault Zone (NAFZ) of Turkey on August 17, 1999 at 00:01:39 UTC (3:01 a.m. local time). The aim of this study is to propose a new approach to automatically identify earthquake induced damage areas which can provide valuable information to support emergency response and recovery assessment procedures. This research was conducted in the Adapazari inner city, covering a 3 × 3 km area, where 11,373 buildings collapsed as a result of the earthquake. SPOT high resolution visible infrared (HRVIR) Pan images obtained before (25 June 1999) and after (4 October 1999) the earthquake were used in the study. Five steps were employed to conduct the research and these are: (i) geometric and radiometric correction of satellite images, (ii) Fast Fourier Transform (FFT) of pre- and post-earthquake images and filtering the images in frequency domain, (iii) generating difference image using Inverse Fast Fourier Transform (IFFT) pre- and post- earthquake images, (iv) application of level slicing to difference image to identify the earthquake-induced damages, (v) accuracy assessment of the method using ground truth obtained from a 1/5,000 scale damage map. The total accuracy obtained in the research is 80.19 %, illustrating that the proposed method can be successfully used to automatically identify earthquake-induced damage areas. View Full-Text
Keywords: Remote sensing; earthquake; Fourier; damage assessment Remote sensing; earthquake; Fourier; damage assessment
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Sertel, E. Identification of Earthquake Induced Damage Areas Using Fourier Transform and SPOT HRVIR Pan Images. Sensors 2009, 9, 1471-1484.

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