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Communication Dans Un Congrès Année : 2007

Automatic Extraction of urban vegetation structures from High Resolution Imagery and digital elevation models

Résumé

This paper presents a method for automatic extraction and characterisation of vegetation structures (such as trees, shrubs, hedges or lawns) in high density urban areas. We present a hierarchical strategy to extract, analyze and delineate vegetation areas according to their height. Spectral indices are used to detect urban vegetation areas. We differentiate lawns from treed areas by computing a texture operator on the digital elevation model (DEM) corresponding to the vegetation areas previously detected. A robust region growing method based on the DEM is developed for an accurate delineation of tree crowns. We evaluate the accuracy of the tree crown delineation results to a reference manual delineation. Results obtained are discussed and the influential factors are put forward.
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Dates et versions

hal-01336457 , version 1 (23-06-2016)

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Corina Iovan, Didier Boldo, Matthieu Cord. Automatic Extraction of urban vegetation structures from High Resolution Imagery and digital elevation models. Urban Remote Sensing Joint Event, Apr 2007, Paris, France. pp.1-5, ⟨10.1109/URS.2007.371840⟩. ⟨hal-01336457⟩
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