Browsing by Subject "Quality"

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  • Banz, Christian; Pirsch, Peter; Blume, Holger (Göttingen : Copernicus GmbH, 2012)
    The stereo matching method semi-global matching (SGM) relies on consistency constraints during the cost aggregation which are enforced by so-called penalty terms. This paper proposes new and evaluates four penalty functions ...
  • Ziems, Marcel; Beyen, J.; Müller, Sönke; Roovers, S.; Heipke, Christian (Göttingen : Copernicus GmbH, 2011)
    This paper describes a semi-automatic system for road update based on high resolution orthophotos and 3D surface models. Potential update regions are identified by an object-wise verification of all existing database ...
  • Ziems, M.; Fujimura, H.; Heipke, Christian; Rottensteiner, Franz (London : International Society for Photogrammetry and Remote Sensing, 2010)
    This paper describes a semi-automatic system for road verification from high resolution orthophotos in an urban context. The system combines several road detection and road verification approaches from current literature ...
  • Helmholz, Petra; Büschenfeld, Torsten; Breitkopf, Uwe; Müller, Sören; Rottensteiner, Franz (Göttingen : Copernicus GmbH, 2012)
    As a consequence of the wide-spread application of digital geo-data in geographic information systems (GIS), quality control has become increasingly important to enhance the usefulness of the data. For economic reasons a ...
  • Jacobsen, Karsten (Hannover : International Society for Photogrammetry and Remote Sensing, 2014)
    Based on test blocks and standard production blocks Z/I Imaging DMCII-140, 230 and 250 as well as UltraCam Eagle images have been analyzed by bundle block adjustment with self calibration. By analysis of image coordinate ...
  • Sefercik, Umut G.; Jacobsen, Karsten (Hannover : International Society for Photogrammetry and Remote Sensing, 2010)
    Radar remote sensing has a significant role in remote sensing technologies and develops rapidly. A series of new synthetic aperture radar (SAR) satellites has been launched to space having various operation modes which ...
  • Hofmann, Sabine; Schulze, Malte Jan; Sester, Monika; Brenner, Claus (Göttingen : Copernicus GmbH, 2011)
    Driving autonomously requires highly accurate positioning. Therefore, alternative positioning systems to GPS are required especially to increase the accuracy, and to have a complementary data source in areas where GPS is ...
  • Lange, Ansgar; Prenzler, Anne; Bachmann, Oliver; Linder, Roland; Neubauer, Sarah; Zeidler, Jan; Manns, Michael P.; Schulenburg, Johann-Matthias Graf von der (Heidelberg : Springer Verlag, 2015)
    Background: The regional availability of specialized physicians is an important aspect in healthcare of patients with IBD. The association between physician density and healthcare is not yet clear. Most studies did not ...
  • Becker, Christian; Breitkopf, Uwe; Büschenfeld, Torsten; Busch, A.; Grünreich, D.; Heipke, Christian; Helmholz, Petra; Müller, S.; Ostermann, Jörn; Pahl, M.; Vogt, Karsten; Ziems, M. (London : International Society for Photogrammetry and Remote Sensing, 2010)
    The usefulness and acceptance of spatial information systems are mainly dependent on the quality of the underlying geodata. This paper describes a system for semiautomatic quality control of existing geospatial data via ...