Eduardo Gerbi Camargo

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RADARSAT-1 images were used as an attempt to identify seepage slicks in the Foz do Amazonas Basin, one of the most promising oil and gas exploration frontiers in the Brazilian Equatorial margin, a region cloud-covered most of the year. An unsupervised semivariogram textural classifier algorithm was used to enhance areas of smooth texture and low radar(More)
OBJECTIVE To evaluate the performance of the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation to estimate glomerular filtration rate (GFR) in type 2 diabetic patients with GFR >60 mL/min/1.73 m(2). RESEARCH DESIGN AND METHODS This was a cross-sectional study including 105 type 2 diabetic patients. GFR was measured by (51)Cr-EDTA method(More)
Given a point set the Voronoi diagram associates to each point all the locations in a plane that are closer to it. This diagram is often used in spatial analysis to divide an area among points. In the ordinary Voronoi diagram the points are treated as equals and the division is done in a purely geometrical way. A weighted Voronoi diagram is defined as an(More)
This short paper describes and analyzes the results of a methodology that allows to conflate existing Digital Elevation Models with a sample set of elevation points in order to obtain more accurate results on modeling elevation information. The set of elevation points has higher vertical accuracy than the DEM and it is used the geostatistical procedure,(More)
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