CHARACTERIZATION OF URBAN TEXTURES ON THE VARAN RADAR IMAGE USING MORPHOLOGICAL AND STATISTICAL APPROACHES - APPLICATION TO THE TOWN OF LUC(SOUTHEASTERN FRANCE)

Radar images have a peculiar texture, which is essentially fine-graine d. They necessitate therefore an appropriate specific processing techn ique, in order to enhance their thematic interpretation. The objective of this paper is to present an original methodology applied to the di fferentiation of urban areas from VARAN radar images of the town of Lu c (in the Var, South-east of France). Mathematical morphology methods enable the preprocessing of radar images necessary for subsequent text ural analysis. Variogram analysis is later used to resolve the confusi on between the fine-grain of speckle and the urban grain.