Classification of typical canopies over the Chong Ming eastern tidal flat from data fusion of ERS-2 SAR and Landsat ETM+

Based on analysis of the reflection spectra and backscattering characteristics of typical land canopies, the Chong Ming eastern tidal flat of the Yangtze River estuary, as a typical case, is chosen for study of data fusion from ERS-2 SAR and Landsat ETM+ observations. The ERS-2 SAR data are first filtered using the wavelet method and extraction of the image texture. And the Landsat ETM+ data is treated using the HIS transform. Two images are fused on the level of the characteristics class, and information extraction and classification of typical land canopies are discussed. The results are well validated by the ground truth from our field survey.