A new two-step robust surface matching approach for three-dimensional georeferencing of historical digital elevation models

Fernando J. Aguilar, Manuel A. Aguilar, Ismael Fernández, Joao G. Negreiros, Jorge Delgado, José L. Pérez

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

In this letter, a new approach based on a two-step (coarse and fine) automatic surface matching for registering two overlapping multidate digital elevation models (DEMs) is proposed to avoid the costly and time-consuming ground-control-point acquisition. The proposed methodology was tested to georeference a historical grid DEM obtained from a photogrammetric flight taken in 1977 and located at a heavily developed coastal area of Almera (southeast Spain). The reference DEM consisted of a newer DEM produced by the Andalusia Regional Government from a photogrammetric flight taken in 2001. The results obtained from this work may be deemed as very promising, showing high efficiency and accuracy for historical-DEM georeferencing. The vertical accuracy of the finally coregistered DEM was computed over a recent LiDAR-derived DEM (validation data set) which presented relatively unaltered areas, yielding a standard deviation that is fairly similar to the estimated uncertainty of the reference DEM.

Original languageEnglish
Article number6138282
Pages (from-to)589-593
Number of pages5
JournalIEEE GEOSCIENCE AND REMOTE SENSING LETTERS
Volume9
Issue number4
DOIs
Publication statusPublished - 2012

Keywords

  • Automatic digital elevation model (DEM) coregistration
  • change detection
  • surface matching
  • terrain mapping

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