the kind of land use and intensity of its change is considered as important desertification indices in different models. land use change is one of the main anthropogenic factors in the desertification. the current research was carried out around imam khomeini airport, with an area of 32000 km2, in order to evaluate mentioned area's land use changes effects during 1955-2003 on desertification. t...

The kind of land use and intensity of its change is considered as important desertification indices in different models. Land use change is one of the main anthropogenic factors in the desertification. The current research was carried out around Imam Khomeini airport, with an area of 32000 km2, in order to evaluate mentioned area's land use changes effects during 1955-2003 on desertification. T...

We tackle the problem of semi-automatic road tracking in aerial photos. Our solution to this human-computer interaction problem is to provide a learning approach that integrates naturally input from human experts with automatic tracking of roads. More specifically, our system learns an ensemble of road predictors from human inputs and uses them to further track a road, alerting the human expert...

DEFINITION Geographic data are in essence visual multimedia data. To entry those data with keyboards and to print them as tables of data are not very practical actions. For entry, special devices exist (theodolites, lasers, aerial photos, satellite images, etc.) whereas visual layout is currently named cartography or mapping. Visual interfaces have two facets, allowing the user to present their...

This paper will introduce a new approach, mainly based on wavelets transform and mathematical morphology, for the detection of geological faults in satellite and aerial photos. This can be useful for territorial analysis, digital cartography and the use of geographical information systems. The proposed method is fast enough and unsupervised. Different techniques will be compared and some exampl...