Title : "DEM Generation Using Quickbird Stereo Data Without Ground Controls – Using Tie Points Only” Company : PCI Geomatics Date : 23-Nov-2006 Downloads : 86

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This article examines the extraction of Digital Elevation Models (DEMs) from QuickBird stereo image pairs without the use of ground control points (GCPs). Due to the frequent unavailability of ground control points, a DEM generation method requiring no GCPs would be of significant interest to users of stereo data. The article also explores the refinement of extracted DEMs by applying horizontal shifts based on reference DEMs from the Shuttle Radar Topography Mission (SRTM).

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