Álgebra de mapas e sua aplicações em sensoriamento remoto e geoprocessamento / Map algebra and its application in remote sensing and geoprocessing

AUTOR(ES)
DATA DE PUBLICAÇÃO

1997

RESUMO

The term "Map Algebra" is used in the Geoprocessing and Remote Sensing literature to denote the set of operators that handle geographic fields (images, thematic maps and numerical terrain models). This work analyzes the different questions involved in the conception, implementation and use of the operators from Map Agebra. In the conceptual analysis, this work presents a consistent theoretical vision of the problem, by analyzing the definition of these operators and by indicating the alternatives of format conversion that are required to implement each operator. The operators were implemented under the environment of the command language of the SPRING system (LEGAL). To test and validate the implemented operators, aconcrete, important application was considered (Ecological and Economical Zoning of Legal Amazon). Starting with a methodological plan, which aims to estimate the degree of stability of homogeneous units of scenery, an application in LEGAL was developed to automate such plan, using the operators developed in this work. The great coherency between the results achieved by this technique and those previously produced (with the use of visual interpretation) has shown the potential of Map Algebra as a supporting tool for studies in Remote Sensing and Geoprocessing.

ASSUNTO(S)

álgebra sistemas de informação geográfica (sig) sistema de informações georreferenciadas (spring) legal (linguagens de computação) geoprocessamento zoneamento ecologico-economico

ACESSO AO ARTIGO

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