Elisabeth Simonetto

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It is well known that a SAR image is composed of two types of information: amplitude and phase. Nevertheless, the information contained in the phase is hardly exploited on its own. Indeed, the number of processes at work and the scale difference between the image resolution and the wavelength induce, with regard to the phase, a quasi-random spatial(More)
Urban sprawl has become an increasingly topic in order to protect environment and reduce alteration of urban development on natural ecosystems. Urbanization has an impact on several processes like hydrology or climatology [1], [2], and competes with agricultural activities. The periurban environment represents a transitional space between urban and rural(More)
More and more historical data are available on the web. In France, old cadastral maps are regularly published by the “départements”. Such material is relevant to various applications (onthe-field search of specific objects such as old boundary stakes, historical studies of demography, human activities, land cover...). The GeF laboratory is working on the(More)
In this study, we consider the capability of a single look high-resolution PoLSAR image for discriminating different surfaces in urban area. First, a basic framework is set up to extract different polarimetric descriptors from Sinclair matrix and coherency matrices, coherent and incoherent decomposition descriptors, and some discriminators. Then, we use a(More)
Vulnerability assessment of systems exposed to earthquakes has been increasily investigated in the last few years. Most efforts have been devoted particularly to vulnerability reduction of what is commonly called the physical vulnerability, given in terms of expected behaviour. This includes the damage inflicted on exposed elements. It is however premature(More)
In this work, we propose a state-of-the-art on statistical analysis of polarimetric synthetic aperture radar (SAR) data, through the modeling of several indices. We concentrate on eight ground classes which have been carried out from amplitudes, co-polarisation ratio, depolarization ratios, and other polarimetric descriptors. To study their different(More)
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