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Journal of Applied Remote Sensing

Detection of urban expansion in an urban-rural landscape with multitemporal QuickBird images
Author(s): Dengsheng Lu; Scott Hetrick; Emilio Moran; Guiying Li
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Paper Abstract

Accurately detecting urban expansion with remote sensing techniques is a challenge due to the complexity of urban landscapes. This paper explored methods for detecting urban expansion with multitemporal QuickBird images in Lucas do Rio Verde, Mato Grosso, Brazil. Different techniques, including image differencing, principal component analysis (PCA), and comparison of classified impervious surface images with the matched filtering method, were used to examine urbanization detection. An impervious surface image classified with the hybrid method was used to modify the urbanization detection results. As a comparison, the original multispectral image and segmentation-based mean-spectral images were used during the detection of urbanization. This research indicates that the comparison of classified impervious surface images with matched filtering method provides the best change detection performance, followed by the image differencing method based on segmentation-based mean spectral images. The PCA is not a good method for urban change detection in this study. Shadows and high spectral variation within the impervious surfaces represent major challenges to the detection of urban expansion when high spatial resolution images are used.

Paper Details

Date Published: 1 September 2010
PDF: 18 pages
J. Appl. Rem. Sens. 4(1) 041880 doi: 10.1117/1.3501124
Published in: Journal of Applied Remote Sensing Volume 4, Issue 1
Show Author Affiliations
Dengsheng Lu, Indiana Univ. (United States)
Scott Hetrick, Indiana Univ. (United States)
Emilio Moran, Indiana Univ. (United States)
Guiying Li, Indiana Univ. (United States)

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