Description: Das Projekt "Verbesserte Änderungsdetektion durch integrierte 3-D Information und Fernerkundungsdaten" wird vom Umweltbundesamt gefördert und von Universität Osnabrück, Institut für Geoinformatik und Fernerkundung (IGF) durchgeführt. Change detection is a very important challenge. Various change detection methods are documented in the literature but most of them focus on two-dimensional data which limit their applicability. Therefore, in this project we focus on the development of three-dimensional change detection methods considering three different scenarios. First, we assume that there is no three-dimensional information for both old and new scenes to detect changes. We propose using twodimensional change detection algorithms followed by approximate three-dimension extraction of the changed regions. Here, we will develop novel depth estimation methods based on shadow and shape information. Second, we assume that we have the three-dimensional information (in terms of stereo image pairs) to be available either for the old or the new scene only. To detect changes in three-dimensions, we will construct the digital elevation model (DEM) based on the stereo image matching principle. For the scene having mono image, we will generate the DEM data by shadow and shape information. Using novel three-dimensional change detection methods, we plan to detect changes on these data sets. ...
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Osnabrück ? Schattenwurf ? Anfechtung ? Bildverarbeitung ? Fernerkundungsdaten ? Szenario ? Geoinformation ? Berechnungsverfahren ? Daten ? Datenverarbeitung ? Nachweisgrenze ? Fernerkundung ? Gebiet ? Änderung ? Auswertungsverfahren ? Digitales Höhenmodell ? digital elevation model ? shape information ?
Region: Lower Saxony
Bounding box: 9.16667° .. 9.16667° x 52.83333° .. 52.83333°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2012-01-01 - 2014-05-31
Accessed 1 times.