Campos Aleatórios de Markov uma Abordagem para Caracterização Extração de Contornos de Telhados
DOI:
https://doi.org/10.5540/tema.2009.010.01.0021Abstract
Este artigo propõe uma metodologia para extração de contornos de telhados utilizando um modelo de Campo Aleatório de Markov (Markov Random Field - MRF). Levando em conta algumas propriedades de telhados e as medidasde alguns atributos (por exemplo, área, retangularidade, ângulos entre eixos principais de objetos) é construída uma função de energia a partir do modelo MRF. O problema de extração de contornos de telhados é formulado a partir de uma estimativa de Maximum a posteriori (MAP), via algoritmo Simulated Annealing (SA). A metodologia proposta foi testada em uma área teste com diferentes complexidades de configurações de objetos presentes na cena.References
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