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Urban Area Extent Extraction in Spaceborne HR and VHR Data Using Multi-Resolution Features

Domaine:

geospatial
Créateur:
GiaGiaFabRau
Éditeur:
MDP
Hôte:
Detection of urban area extents by means of remotely sensed data is a difficult task, especially because of the multiple, diverse definitions of what an “urban area” is. The models of urban areas listed in technical literature are based on the combination of spectral information with spatial patterns, possibly at different spatial resolutions. Starting from the same data set, “urban area” extraction may thus lead to multiple outputs. If this is done in a well-structured framework, however, this may be considered as an advantage rather than an issue. This paper proposes a novel framework for urban area extent extraction from multispectral Earth Observation (EO) data. The key is to compute and combine spectral and multi-scale spatial features. By selecting the most adequate features, and combining them with proper logical rules, the approach allows matching multiple urban area models. Experimental results for different locations in Brazil and Kenya using High-Resolution (HR) data prove the usefulness and flexibility of the framework.

Visit

doi.org

Tasks

computer visionimage classification

Licenses

https://creativecommons.org/licenses/by/4.0/

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