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Browsing by Subject "Fast fourier transform"

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Comparison of feature extraction methods within a spatio-temporal land cover change detection framework

Author: Kleynhans, W ; Salmon, BP ; Olivier, JC ; Wessels, Konrad J ; Van den Bergh, F Date: Jul 2011 In this paper, a change detection accuracy comparison is made between a recently proposed EKF method and a sliding window. Fast Fourier Transform(FFT) alternative within a spatio-temporal change detection framework. Both methods produce a ... Read more
Improving land cover class separation using an extended Kalman filter on MODIS NDVI time series data

Author: Kleynhans, W ; Olivier JC ; Wessels, Konrad J ; Van Den Bergh F ; Salmon BP ; Steenkamp Karen C Date: 15 Dec 2009 It is proposed that the NDVI time-series derived from MODIS satellite data can be modelled as a triply (mean, phase and amplitude) modulated cosine function. Secondly, a non-linear Extended Kalman Filter is developed to estimate the parameters ... Read more
Improving NDVI time series class separation using an extended Kalman filter

Author: Kleynhans, W ; Olivier, JC ; Salmon, BP ; Wessels, Konrad J ; Van den Bergh, F Date: Jul 2009 It is proposed that the NDVI time series derived from MODIS multitemporal remote sensing data can be modelled as a triply (mean, phase and amplitude) modulated cosine function. A non-linear Extended Kalman Filter was developed to estimate the ... Read more

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Browsing by Subject "Fast fourier transform"

Browsing by Subject "Fast fourier transform"

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