Comparison of Harmonic, Geometric and Arithmetic Means for Change Detection in SAR Time Series

Konferenz: EUSAR 2012 - 9th European Conference on Synthetic Aperture Radar
23.04.2012 - 26.04.2012 in Nuremberg, Germany

Tagungsband: EUSAR 2012

Seiten: 4Sprache: EnglischTyp: PDF

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Quin, Guillaume; Pinel-Puysségur, Béatrice (CEA, DAM, DIF, F-91297 Arpajon, France)
Nicolas, Jean-Marie (Telecom ParisTech, CNRS LTCI, 75634 Paris Cedex 13, France)

The amplitude distribution in a SAR image can present a heavy tail. Indeed, very high–valued outliers can be observed. In this paper, we propose the usage of the Harmonic, Geometric and Arithmetic temporal means for amplitude statistical studies along time. In general, the arithmetic mean is used to compute the mean amplitude of time series. In this study, we will show that comparing the behaviour of the Harmonic, Geometric and Arithmetic means, enables a change detection method along SAR time series.