The main aim of the research described in the paper was analyse the accuracy of photointerpretation of impervious surface using IKONOS images and its influence on the imperviousness factor determination. Two kinds of IKONOS image were chosen to tests: panchromatic and colour pansharp. Airborne ortopho (pixel size of 0.2m) was applied as a reference. Six operators, digitised three times, two kin...

Mapping, cartography, photointerpretation and guidance are some applications that can directly and readily benefit from automated aerial scene analysis. We have successfully used perceptual organization ideas to analyze aerial scenes and to describe cultural features of interest, such as buildings. Perceptual organization refers to the ability of a visual system to quickly capture representatio...

This note concerns the updating of the land cover map of the Arno River basin (9.000 km) developed in the frame of a research project aimed at landslide risk assessment. The land cover map has been produced through the analysis of panchromatic/multispectral Landsat ETM+ images and TERRA-ASTER data; those data were integrated and compared with B/W and color ortho-photos. To improve photointerpre...

The geo-environmental zoning represents an important strategy in the territorial management. However, it requires a logical and structured procedure. Therefore, an approach using physiographic compartmentalization is proposed and applied as case study in a region covered by the topographic maps of São José dos Campos and Jacareí, Brazil. This region has great geological and geomorphological pec...

When facing land use classification by photointerpretation, an initial decision-taking process happens regarding the technique to apply to get the best results from the source of information. Some factors are taken into account like adaptation to the photograph properties and flight parameters, as well as ground relief and coverage. Not less important have to be the economic variables involved ...

The Campos do Jordão Plateau, situated in the Serra da Mantiqueira – western flank of Continental Rift Southeastern Brazil, presents several morphological features that are indicative neotectonic activity. This paper a morphotectonic map southeastern front plateau (scale 1:25,000), based on detailed photointerpretation, with structural data obtained during field surveys and also supported by mo...

The aim of the present study is to evaluate progress occupation process applied residential yards Palmas City – Tocantins State (TO) in light legislation providing on parameters and guidelines for buildings this municipality. Aerial satellite images, as well tools geographic information system (GIS), at high resolution standards, were used data processing collection. Study site encompassed 407 ...

O objetivo do presente artigo foi apresentar o mapeamento relevo a partir método anáglifo como subsídio ao planejamento ambiental alto curso da bacia hidrográfica córrego Ceroula, Campo Grande-MS. Assim, foram elaborados mapeamentos em ambiente de Sistemas Informação Geográfica, sobretudo mapa geomorfológico com uso imagens tridimensionais na escala 1:10.000, e trabalhos campo, onde ocorreu rea...