Um subsistema extensível para o armazenamento de geo-campos em banco de dados geográficos / An extensible storage subsystem for geo-fields in geographical databases

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

This thesis discusses the management of geographical data represented as geo-fields. The approach adopted is to specify a semi-complete subsystem that allows the storage and access to different types of geo-fields in a unified way. Raster representations of geo-fields are first characterized in details. For this kind of representation, a study of the requirements related to their storage in object-relational databases, that includes efficiency considerations, is carried out. The result is materialized as an extensible storage subsystem for tiled multi-resolution raster representations, running on top of object-relational databases. Finally, a concrete implementation, using the TerraLib library, is described, as well as use cases that demonstrate the usefulness of the subsystem, specially when dealing with digital remotely sensed images.

ASSUNTO(S)

sistemas de informação geográfica (sig) geoinformação bancos de dados de imagens terralib bancos de dados

ACESSO AO ARTIGO

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