The usefulness and acceptance of spatial information systems are mainly dependent on the quality of the underlying geodata. This paper describes a system for semiautomatic quality control of existing geospatial data via automatic image analysis using aerial images, high-resolution satellite imagery (IKONOS and RapidEye) and low-resolution satellite imagery (Disaster Monitoring Constellation, DM...

Full and effective participation of indigenous peoples and local communities, and high accuracy estimates are two current requirements for the purposes of monitoring forests at international level. We produced two land cover maps, both of which were based on digital image processing (decision trees) using Rapideye imagery, and a land cover participatory map, for indigenous territories of easter...

Ventilatory aspects in adults with Pompe disease have a major impact on clinical course and quality of live. Treatment with non-invasive ventilation is state of the art for these patients. However, it is well known that the onset of ventilatory symptoms does not strictly correlate with the degree of proximal skeletal muscle involvement. Early signs and symptoms indicating ventilatory insuffi ci...

This research proposes a new model for the generation of basic soil information maps for precision agriculture based on multitemporal remote sensing data analysis and GIS spatial data modelling. It demonstrates (i) the potential of multitemporal soil pattern analysis (ii) to generate functional soil maps at field scale based on soil reflectance patterns and related soil properties and (iii) how...

O objetivo do trabalho foi mapear as classes de cobertura das terras uma área Delta Parnaíba, Piauí aplicando o método classificação não-supervisionada em imagens RapidEye. Através processamento digital ambiente SIG possível 12 terras. Os resultados indicaram que maior percentual da estudo é coberta por campos com a presença vegetação arbustiva e predomínio pastagem. Outras (dunas móveis cordão...