文章基本信息

标题：EXTRAÇÃO SEMI-AUTOMÁTICA DE RODOVIAS EM UM PAR DE IMAGENS AÉREAS DIGITAIS UTILIZANDO GEOMETRIA EPIPOLAR E PROGRAMAÇÃO DINÂMICA
本地全文：下载
作者：RODRIGO BEZERRA DE ARAÚJO GALLIS ; ALUIR PORFÍRIO DAL POZ ; RICARDO LUIS BARBOSA 等
期刊名称：Boletim de Ciências Geodésicas
印刷版ISSN：1982-2170
出版年度：2006
卷号：12
期号：1
语种：Portuguese
出版社：Universidade Federal do Paraná-UFPR
摘要：The purpose of this paper is to introduce a methodology for semi-automatic road extraction from aerial digital image pairs by using dynamic programming and epipolar geometry. The method uses both images from where each road feature pair is extracted. The operator identifies the corresponding road features and s/he selects sparse seed points along them. After all road pairs have been extracted, epipolar geometry is applied to determine the automatic point-to-point correspondence between each correspondent feature. Finally, each correspondent road pair is georeferenced by photogrammetric intersection. Experiments were made with rural aerial images. The results led to the conclusion that the methodology is robust and efficient, even in the presence of shadows of trees and buildings or other irregularities.
其他摘要：The purpose of this paper is to introduce a methodology for semi-automatic road extraction from aerial digital image pairs by using dynamic programming and epipolar geometry. The method uses both images from where each road feature pair is extracted. The operator identifies the corresponding road features and s/he selects sparse seed points along them. After all road pairs have been extracted, epipolar geometry is applied to determine the automatic point-to-point correspondence between each correspondent feature. Finally, each correspondent road pair is georeferenced by photogrammetric intersection. Experiments were made with rural aerial images. The results led to the conclusion that the methodology is robust and efficient, even in the presence of shadows of trees and buildings or other irregularities.
关键词：Rodovia;Extração Semi-automática;Programação Dinâmica;Geometria Epipolar;Roads;Semi-automatic road extraction;Dynamic programming;Epipolar geometry