Fully automatic road network extraction from satellite images

Onur Tuncer*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

23 Citations (Scopus)

Abstract

In this paper a fully automatic road detection algorithm is introduced. It comprises of pre-processing the image via a series of wavelet based filter banks and reducing the yielding data into a single image which is of the same size as the original optical grayscale satellite image, then utilizing a fuzzy inference algorithm to carry out the road detection which can then be used as an input to a geographical information system for cartographic or for other purposes that are in need. We use a trous algorithm twice with two different wavelet bases in order to filter and de-noise the satellite image. Each wavelet function resolves features at a different resolution level associated with the frequency response of the corresponding FIR filter. Resulting two images are fused together using Karhounen-Louve transform (KLT) which is based on principal component analysis (PCA). This process underlines the prominent features of the original image as well as de-noising it, since the prominent features appear in both of the wavelet transformed images while noise does not strongly correlate between scales. Next a fuzzy logic inference algorithm which is based on statistical information and on geometry is used to extract the road pixels.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Conference on Recent Advances in Space Technologies, RAST 2007
Pages708-714
Number of pages7
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event3rd International Conference on Recent Advances in Space Technologies, RAST 2007 - Istanbul, Turkey
Duration: 14 Jun 200716 Jun 2007

Publication series

NameProceedings of the 3rd International Conference on Recent Advances in Space Technologies, RAST 2007

Conference

Conference3rd International Conference on Recent Advances in Space Technologies, RAST 2007
Country/TerritoryTurkey
CityIstanbul
Period14/06/0716/06/07

Keywords

  • Fuzzy logic
  • Road extraction
  • Satellite imagery

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