Esqueletização na Modelagem e Extração de Cruzamentos Simples de Rodovias

Rodrigo Bruno ZaninAluir Porfírio Dal PozÉrico Fernando O. Martins

This paper presents a methodology to extract simple crossings of roads based on a skeletonization of the cross region in its binary form. The calculation of threshold binarization for the crossing region considers a smoothing of the region in order to evidence the threshold, wich is determined based on the valleys formed by the histogram. The modeling the cross region is important for filtering spurious structures selecting only the features that compose the edges of the crossing road. The proposed methodology was tested on a set of four images with different levels of difficulty with an average of 83.5% of completeness.

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