Dual-Channel PolSAR Speckle Reduction Using Non-Local Means Filter

Konferenz: EUSAR 2016 - 11th European Conference on Synthetic Aperture Radar
06.06.2016 - 09.06.2016 in Hamburg, Germany

Tagungsband: EUSAR 2016

Seiten: 4Sprache: EnglischTyp: PDF

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Hu, Jingliang (German Aerospace Center (DLR-IMF), Germany)
Schmitt, Andreas (German Aerospace Center (DLR-DFD), Germany)
Zhu, Xiaoxiang (German Aerospace Center (DLR-IMF) & Technical University of Munich (TUM-SIPEO), Germany)

Intelligent speckle filters promote the efficient usage of PolSAR data. It has been validated that non-local means filter is capable of reducing noise while preserving details. This paper applies a non-local filtering scheme for dual-channel TerraSAR-X PolSAR data. One of the key points in Non-local means filter is the similarity measurement. In this study, detection similarity and Log-Euclidean similarity are used and compared regarding dual-channel PolSAR. The analysis showed that each similarity approach leans to one side of the speckle reduction-detail preservation trade-off.