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Integrated UAV-Based Real-Time Mapping for Security Applications

Hein, Daniel und Kraft, Thomas und Brauchle, Jörg und Berger, Ralf (2019) Integrated UAV-Based Real-Time Mapping for Security Applications. ISPRS International Journal of Geo-Information, 8 (5), Seiten 1-16. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/ijgi8050219. ISSN 2220-9964.

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Offizielle URL: https://www.mdpi.com/2220-9964/8/5/219/htm

Kurzfassung

Security applications such as management of natural disasters and man-made incidents crucially depend on the rapid availability of a situation picture of the affected area. UAV-based remote sensing systems may constitute an essential tool for capturing aerial imagery in such scenarios. While several commercial UAV solutions already provide acquisition of high quality photos or real-time video transmission via radio link, generating instant high-resolution aerial maps is still an open challenge. For this purpose, the article presents a real-time processing tool chain, enabling generation of interactive aerial maps during flight. Key element of this tool chain is the combination of the Terrain Aware Image Clipping (TAC) algorithm and 12-bit JPEG compression. As a result, the data size of a common scenery can be reduced to approximately 0.4% of the original size, while preserving full geometric and radiometric resolution. Particular attention was paid to minimize computational costs to reduce hardware requirements. The full workflow was demonstrated using the DLR Modular Airborne Camera System (MACS) operated on a conventional aircraft. In combination with a commercial radio link, the latency between image acquisition and visualization in the ground station was about 2 s. In addition, the integration of a miniaturized version of the camera system into a small fixed-wing UAV is presented. It is shown that the described workflow is efficient enough to instantly generate image maps even on small UAV hardware. Using a radio link, these maps can be broadcasted to on-site operation centers and are immediately available to the end-users.

elib-URL des Eintrags:https://elib.dlr.de/127382/
Dokumentart:Zeitschriftenbeitrag
Titel:Integrated UAV-Based Real-Time Mapping for Security Applications
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Hein, Danieldaniel.hein (at) dlr.dehttps://orcid.org/0000-0001-9186-4178NICHT SPEZIFIZIERT
Kraft, Thomasthomas.kraft (at) dlr.dehttps://orcid.org/0000-0003-3270-5606NICHT SPEZIFIZIERT
Brauchle, JörgJoerg.Brauchle (at) dlr.dehttps://orcid.org/0000-0002-3556-7643NICHT SPEZIFIZIERT
Berger, Ralfralf.berger (at) dlr.dehttps://orcid.org/0000-0002-1314-5554NICHT SPEZIFIZIERT
Datum:8 Mai 2019
Erschienen in:ISPRS International Journal of Geo-Information
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:8
DOI:10.3390/ijgi8050219
Seitenbereich:Seiten 1-16
Verlag:Multidisciplinary Digital Publishing Institute (MDPI)
Name der Reihe:Innovative Sensing - From Sensors to Methods and Applications
ISSN:2220-9964
Status:veröffentlicht
Stichwörter:UAV camera system; rapid mapping; aerial imaging; real-time situation picture; disaster management; image mosaicing; direct georeferencing
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):R - keine Zuordnung
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Optische Sensorsysteme > Sicherheitsforschung und Anwendungen
Hinterlegt von: Hein, Daniel
Hinterlegt am:09 Mai 2019 08:10
Letzte Änderung:31 Okt 2023 14:50

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