Filtros espaciais de alto desempenho para imagens em sistemas de informações geográficas.

Abstract

Spatial filters are used for digital images to remove noise or perform some form of segmentation. Based on studies of filter algorithms and their computational complexity, an algorithm is implemented using reconfigurable hardware consisting of FPGA's (Field Programmable Gate Arrays). The algorithm chosen is the reduced vector median filter (RVMF). Results show the viability of spatial filter implementations using reconfigurable hardware in order to resolve the complexity problem and maintain flexibility of systems.