This study focuses on the recovery of information from shadowed pixels in RGB or multispectral imagery sensed unmanned aerial vehicles (UAVs). The proposed technique is based concept that a property characterizing given surface its spectral reflectance, i.e., ratio between flux reflected by and radiant received surface, this usually similar under direct-plus-diffuse irradiance diffuse when Lamb...

The second half of the 20th century has been characterised by rural abandonment in several regions Mediterranean basin. general collapse traditional agriculture and livestock activities brought about an intensive migration movement from inland to coastal areas, which produced a massive forest cover increase abandoned areas. This socioeconomic, spatial environmental change led situation unknown ...

Introduction (USDA, 1982). At present photointerpretation of aerial photography is being conSince the launch of Landsat 4 in 1982 sidered for assessing land use and land the scientific community has been procondition. Application of automated techvided with high quality digital images of niques to digital satellite data may be an the earth's surface. In the mid and late effective tool at some f...

Environmental vulnerability refers to the susceptibility of a region damage when it is subjected natural or anthropogenic actions. The assessment environmental in lakes an important tool assist managers planning and intervening for sustainable production preservation. combination geotechnologies, fuzzy logic analytic hierarchy process (AHP) has been applied by professionals researchers improve ...

Abstract Italy is characterized by widespread geomorphological instability, among which landslides leave impressive marks on the landscape. Nevertheless, landslide bodies may represent key sites for thematic and educational itineraries, especially in protected areas, where their management becomes an important issue. Our study focuses “Monte Rufeno Nature Reserve” (Central Apennines, Italy), ic...

of stereoscopic landscape analysis, and then determine the soil types that occur in each map unit by field inspecA method to enhance manual landform delineation using phototion of the soil at representative sites. A common inspecinterpretation to map a larger area is described. Conventional aerial tion density is one observation per one to four map photo-interpretation (API) maps using a geo-pe...

The arrival of new-generation, high-spatial-resolution satellite imagery (e.g., Ikonos) has opened up new opportunities for detailed mapping and analysis of urban land use. Drawing on the traditional approach used in aerial photointerpretation, this study investigates an “object-oriented” method to classify a large urban area into detailed land-use categories. Spatial metrics and texture measur...

defined, the reasoning portion of the 3-D FORM system can apply the model to real data, recognizing instances of the defined objects and hypothesizing their missing parts. Figure 1 shows a portion of the knowledge that might be represented about a building. A BUILDING is a 3D-OBJECT; and a WALL, which is a 2D-OBJECT, is one of the building's parts. The specific building, BLDG1, has parts WALL1 ...

The study of afforestation is crucial to monitor land transformations and represents a central topic in sustainable development procedures, terms climate change, ecosystem services monitoring, planning policies activities. Although surveying important, the assessment growing forests difficult, since cover has different durations depending on species. In this context, remote sensing can be valid...

Atualmente, utiliza-se os recursos da natureza de forma exploratória, sem a projeção dos impactos que essa atitude pode ocasionar, gerando problemas caráter social e/ou ambiental, podendo apresentar seus efeitos rapidamente ou em grande escala tempo. No Haiti, constata-se região possui incapacidade enfrentar qualquer problema situação está relacionada diretamente com as atividades antrópicas. N...