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A new spectral index for the extraction of built-up land features from Landsat 8 satellite imagery
Blekinge Institute of Technology, Faculty of Computing, Department of Computer Science and Engineering. (BigData@BTH)ORCID iD: 0000-0002-4390-411X
2018 (English)In: Geocarto International, ISSN 1010-6049, E-ISSN 1752-0762Article in journal (Refereed) Published
Abstract [en]

Extracting built-up areas from remote sensing data like Landsat 8 satellite is a challenge. We have investigated it by proposing a new index referred as Built-up Land Features Extraction Index (BLFEI). The BLFEI index takes advantage of its simplicity and good separability between the four major component of urban system, namely built-up, barren, vegetation and water. The histogram overlap method and the Spectral Discrimination Index (SDI) are used to study separability. BLFEI index uses the two bands of infrared shortwaves, the red and green bands of the visible spectrum. OLI imagery of Algiers, Algeria, was used to extract built-up areas through BLFEI and some new previously developed built-up indices used for comparison. The water areas are masked out leading to Otsu’s thresholding algorithm to automatically find the optimal value for extracting built-up land from waterless regions. BLFEI, the new index improved the separability by 25% and the accuracy by 5%.

Place, publisher, year, edition, pages
Taylor & Francis Group, 2018.
Keywords [en]
satellite imaging, spectral index, land features, Landsat 8
National Category
Engineering and Technology Electrical Engineering, Electronic Engineering, Information Engineering Computer and Information Sciences Geosciences, Multidisciplinary
Identifiers
URN: urn:nbn:se:bth-16810DOI: 10.1080/10106049.2018.1497094OAI: oai:DiVA.org:bth-16810DiVA, id: diva2:1233078
Available from: 2018-07-15 Created: 2018-07-15 Last updated: 2018-07-15

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Publisher's full texthttps://www.tandfonline.com/doi/abs/10.1080/10106049.2018.1497094

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Cheddad, Abbas
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf