A study on road extraction for improving the quality in conflation between aerial image and road map

Sungchul Yang, Wonhee Lee, Kiyun Yu

Research output: Contribution to journalArticlepeer-review

Abstract

With increasing user applicability of geospatial data, user demand for manifold and accurate information has increased. The usefulness of these services derives from their combination of the advantages of as-built geospatial data in making new content. There is a spatial inconsistency and shape disagreement in fusing heterogeneous data. Conflation, defined as the combining of information from diverse sources so as to reconcile spatial inconsistencies and shape disagreement, is possible solution to the problem. In this research, we developed the technique for removing shape disagreement between aerial image and road map removed spatial inconsistency in advanced research. The process includes four processes: producing of a road candidate image, extraction of vertices, and generation of a graph by connecting the vertices. We could remove the shape disagreement using the extracted road that was derived from finding the road possible path.

Original languageEnglish
Pages (from-to)593-599
Number of pages7
JournalJournal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
Volume29
Issue number6
DOIs
StatePublished - Dec 2011

Keywords

  • Conflation
  • Quad-tree
  • RL-graph
  • Road
  • Shape disagreement

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