Delimitation of builtup areas using satellite images

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Delimitation of built-up areas using satellite
images
Marianne Eriksson Statistics Sweden Box
24300 SE_10451 Stockholm Tel [phone]
Fax [phone] E-mail
Marianne.Erikssons_at_scb.se
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Data sources
3,2 milj. Real estate incl. data on
population, establishments
3,1 milj. Buildings
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Project partners SCB, Metria/Environment The
project was mainly financed by Swedish National
Space Board Can satellite images be used in
delimitation of built-up areas? Can the quality
be improved?

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• SCB Registers of real estate and buildings
• ArcInfo, MapInfo
• Metria Evironment , Satellitdata from 2005
• SPOT-5 (10 m resolution)
• SPOT-4 (20 m resolution)
• eCognition, ERDAS Imagine

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Study areas
Localities (3) Smaller locality (1) Concentration
of holiday homes (2) Concentration of workplaces
outside localities (3)
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Data

• Satellitimages 2005 (SPOT-4 and SPOT-5)
• Digital roadmap
• Building register
• Swedish Corine (SMD)
• Borders for built-up areas for 2000

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Sealed soil Green vegetation
Forest Forest
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Segmentation of satellitdata
Vegetation and sealed soil are separated by a
vegetation index

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Diagram for classification in eCognition
Buildings with veg. within a locality
Buildings with veg. outside a locality
Vegetation within a locality
Vegetation outside a locality
Buildings within a locality
Buildings outside a locality
Bare soil within a locality
Sealed soil within a locality
Water
Bare soil out-side a locality
Roads
Sealed soil out-side a locality
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Validation localities
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Smaller locality
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Concentration of holiday homes
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Concentration of workplaces outside localities