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Low-cost optical Camera Systems for real-time Mapping Applications Preisgünstige Kamerasysteme für Echtzeitanwendungen

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Abstract:

Real-time monitoring of natural disasters, mass events, and large accidents with airborne optical sensors is an ongoing topic in research and development. The performance of experimental airborne low-cost camera systems for real-time mapping applications is exemplarily evaluated in terms of geometrical accuracy, radiometric performance, and processing times. Focus lies on the analysis of the geometrical stability of low-cost camera systems within several years of operation and on the evaluation of the limits of direct georeferencing. Further a real-time processing chain including a real-time GPU (graphical processing unit) based orthorectification method is proposed taking into account the maximum possible frame rates of the cameras of five frames per second.

German
Die Beobachtung von Naturkatastrophen, Großereignissen und Unfällen mit flugzeuggestützten optischen Sensoren in Echtzeit ist ein derzeit wichtiges Thema in Forschung und Entwicklung. In diesem Zusammenhang wird die Leistungsfähigkeit von preisgünstigen Kamerasystemen für Echtzeitanwendungen in Hinblick auf geometrische Genauigkeit, radiometrische Eigenschaften und Prozessierungszeiten evaluiert. Der Schwerpunkt liegt bei der Analyse der geometrischen Stabilität von preisgünstigen Kameras im langjährigen Betrieb und den Grenzen der direkten Georeferenzierung. Weiterhin wird eine echtzeitfähige Prozessierungskette mit einer GPU (graphical processing unit) basierten Orthorektifizierungsmethode für eine maximal mögliche Aufnahmerate von 5 Hz vorgestellt.

Keywords: CAMERA CALIBRATION; DIRECT GEOREFERENCING; GPS/INERTIAL SYSTEMS; REAL-TIME PROCESSING

Document Type: Research Article

DOI: https://doi.org/10.1127/1432-8364/2012/0109

Publication date: 2012-05-01

More about this publication?
  • Photogrammetrie - Fernerkundung - Geoinformation (PFG) is an international scholarly journal covering the progress and application of photogrammetric methods, remote sensing technology and the intricately connected field of geoinformation processing.

    Papers published in PFG highlight new developments and applications of these technologies in practice. The journal hence addresses both researchers and student of these disciplines at academic institutions and universities and the downstream users in both the private sector and public administration.

    PFG places special editorial emphasis on the communication of new methodologies in data acquisition, new approaches to optimized processing and interpretation of all types of data which were acquired by photogrammetric methods, remote sensing, image processing and the computer-aided interpretation of such data in general.

    PFG is the official journal of the German Society of Photogrammetry and Remote Sensing.
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