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Modular Photogrammetric Sensor Systems for Real-time Information Extraction and 3D-Applications

Bucher, Tilman and Berger, Ralf and Brauchle, Jörg and Hein, Daniel and Lehmann, Frank and Piltz, Björn and Scherbaum, Patrick and Stebner, Karsten and Pless, Sebastian (2016) Modular Photogrammetric Sensor Systems for Real-time Information Extraction and 3D-Applications. In: Publikationen der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e.V., 25. 36. Wissenschaftlich-Technische Jahrestagung der DGPF, 07.-09. Juni 2016, Bern, Schweiz. ISSN 0942-2870

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Abstract

To enable research in the field of real-time information extraction and precise 3D reconstruction from aerial remote sensing data, a set of experimental sensor systems has been developed at the DLR Institute of Optical Sensor Systems. The Modular Airborne Camera System (MACS) stands for the concept of a highly flexible photogrammetric sensor system. It consists of a set of calibrated camera heads, a commanding unit and auxiliary measuring devices e.g. for position and orientation. The processing unit simultaneously operates up to 6 camera heads and handles the data processing, storage and output to a real-time data-downlink. The geometric flexibility is expressed by the possibility to rapidly change the geometric configuration for oblique or wide-swath imaging. Also the spectral range can be adapted, cameras recording visual, near infrared and thermal infrared light as well as hyperspectral sensors can be operated simultaneously. To be able to use a wide range of carriers a further design concept is low weight and small size. Systems have been integrated in (wing)pods (e.g. Stemme S10, Tornado), in standard aircraft and in fixed-wing as well as in multi-rotor UAVs. A high level of autonomy is reached by using a GPS-based fully automatic image acquisition. A rigid and determinable alignment of sensors, optics, position and orientation measurement systems as well as an extensive geometric and radiometric calibration is essential for the photogrammetric 3D capability of the system. It has been developed and verified in several instances over the last years. Industrial grade sensors delivering high frame rates allow very high overlaps of all sensors even at high flight velocities what qualifies MACS especially for 3D-reconstruction of oblique image flights over urban areas. An in-house developed operating software is used in all MACS sensor systems and provides images with an exact timestamp, position and orientation information to ensure an consistent photogrammetric workflow. Main fields of application of the MACS system so far have been real-time monitoring and information extraction for security applications, full 3D data acquisition for simulation purposes, especially in urban scenarios and 2,5D mapping even under extreme conditions in the Himalayas.

Item URL in elib:https://elib.dlr.de/109893/
Document Type:Conference or Workshop Item (Speech)
Title:Modular Photogrammetric Sensor Systems for Real-time Information Extraction and 3D-Applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bucher, TilmanTilman.Bucher (at) dlr.deUNSPECIFIED
Berger, Ralfralf.berger (at) dlr.deUNSPECIFIED
Brauchle, JörgJoerg.Brauchle (at) dlr.deUNSPECIFIED
Hein, DanielDaniel.hein (at) dlr.deUNSPECIFIED
Lehmann, Frankfrank.lehmann (at) dlr.deUNSPECIFIED
Piltz, Björnbjoern.piltz (at) dlr.deUNSPECIFIED
Scherbaum, Patrickpatrick.scherbaum (at) dlr.deUNSPECIFIED
Stebner, KarstenKarsten.Stebner (at) dlr.deUNSPECIFIED
Pless, Sebastiansebastian.pless (at) dlr.deUNSPECIFIED
Date:2016
Journal or Publication Title:Publikationen der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e.V.
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:25
Editors:
EditorsEmail
Kersten, Thomas P.UNSPECIFIED
Series Name:Publikationen der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e.V.
ISSN:0942-2870
Status:Published
Keywords:Airborne Camera, Remote Sensing, Photogrammetry, Hyperspectral, Thermal Infrared, 3D Reconstruction, Classification
Event Title:36. Wissenschaftlich-Technische Jahrestagung der DGPF
Event Location:Bern, Schweiz
Event Type:national Conference
Event Dates:07.-09. Juni 2016
Organizer:DGPF
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Optische Technologien und Anwendungen
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Sensor Concepts and Applications
Deposited By: Bucher, Tilman
Deposited On:21 Dec 2016 10:25
Last Modified:21 Dec 2016 10:25

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