DocumentCode :
2121032
Title :
Landsat urban mapping based on a combined spectral-spatial methodology
Author :
Guindon, Bert ; Zhang, Ying ; Dillabaugh, Craig
Author_Institution :
Natural Resources Canada, Ottawa, Ont., Canada
Volume :
2
fYear :
2004
fDate :
20-24 Sept. 2004
Firstpage :
1080
Abstract :
As part of a program to monitor the evolution of urban growth and to encapsulate aspects of urban sustainability of major Canadian cities, we have developed a new methodology for improved urban delineation. This approach involves the generation of two independent land cover products based on pixel-based and segment-based classifications. These classifications are merged through a rule-based approach to exploit the fundamental advantages of each product. It is shown that a relatively simple rule set can be used both to infer new land cover and land use classes and to simplify the complex land cover class mix that is characteristic of low density residential areas. This paper presents an overview of the methodology and quantitative assessment of its performance. A study has also been conducted to quantify a building density detectability threshold for TM data. Example results are major Canadian cities including Ottawa, Calgary and urban centres in southwestern Ontario that have recently experienced rapid growth.
Keywords :
image classification; image segmentation; land use planning; remote sensing; terrain mapping; Calgary; Canadian city; Landsat urban mapping; Ottawa; TM data; Thematic Mapping; building density threshold; land cover class mix; land cover product; pixel/segment-based classification; residential area density; rule-based approach; southwestern Ontario; spectral-spatial methodology; urban growth evolution; urban sustainability/delineation; Cities and towns; History; Image segmentation; Layout; Merging; Monitoring; Pixel; Remote sensing; Roads; Satellites;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Print_ISBN :
0-7803-8742-2
Type :
conf
DOI :
10.1109/IGARSS.2004.1368599
Filename :
1368599
Link To Document :
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