João Ricardo de Freitas Oliveira

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The technological advances about remote sensing allows a better identification of urban targets in the images. The aim of this work is to classify automatically the urban spaces applying feature extraction and selection techniques, in high resolution images. To classify the road network and others urban components, some shape features that permit to(More)
This paper presents TerraHydro, a Distributed Hydrological System created to develop hydrographic basin water flow GIS applications. TerraHydro proposes a different computational representation for dealing with water flow in GIS applications. These applications involve the concept of local flow, extracted from terrain, which is the basis for most spatially(More)
A new computational representation for dealing with water flow in GIS applications is proposed. Different computer structures have been studied proposed and implemented and have gained a place in most of the commercial systems. Each particular local water flow data structure needs its own set of operators in order to provide support for Distributed(More)
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