An automated land cover change detection method is proposed that uses coarse spatial resolution hyper-temporal earth observation satellite time series data. The study compared three different unsupervised clustering approaches that operate on short term Fourier transform coefficients computed over subsequences of 8-day composite MODerate-resolution Imaging Spectroradiometer (MODIS) surface reflectance data that were extracted with a temporal sliding window. The method uses a feature extraction process that creates meaningful sequential time series that can be analyzed and processed for change detection. The method was evaluated on real and simulated land cover change examples and obtained a change detection accuracy exceeding 76% on real land cover conversion and more than 70% on simulated land cover conversion.

Item Type:	Refereed Article
Research Division:	Engineering
Research Group:	Electrical and Electronic Engineering
Research Field:	Electrical and Electronic Engineering not elsewhere classified
Objective Division:	Expanding Knowledge
Objective Group:	Expanding Knowledge
Objective Field:	Expanding Knowledge in Engineering
Author:	Salmon, BP (Dr Brian Salmon)
Author:	Olivier, JC (Professor JC Olivier)
ID Code:	77853
Year Published:	2011
Web of Science® Times Cited:	24
Deposited By:	Engineering
Deposited On:	2012-06-01
Last Modified:	2015-02-08
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