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Flying a helicopter with the HoloLens as head-mounted display

Walko, Christian und Maibach, Malte-Jörn (2021) Flying a helicopter with the HoloLens as head-mounted display. In: Proceedings of SPIE - The International Society for Optical Engineering. SPIE Defense + Commercial Sensing, 2021, 2021-04-12 - 2021-04-16, USA. doi: 10.1117/12.2588764. ISSN 0277-786X.

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Offizielle URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11759/2588764/Flying-a-helicopter-with-the-HoloLens-as-head-mounted-display/10.1117/12.2588764.full?SSO=1

Kurzfassung

This paper describes the flight testing and the integration process of the Microsoft HoloLens 2 as head-mounted display with DLR's research helicopter ACT/FHS. In previous work, the HoloLens was integrated into a helicopter simulator. Now, while migrating the HoloLens into a real helicopter, the main challenge was the head tracking of the HoloLens, because it is not designed to operate on moving vehicles. Therefore, the internal head tracking is operated in a limited rotation-only mode and resulting drift errors are compensated with an external tracker, various of which have been tested in advance. The fusion is done with a Kalman filter, which contains a nonlinear weighting. Internal tracking errors of the HoloLens caused by vehicle accelerations are mitigated with a system identification approach. For calibration, the virtual world is manually aligned using the helicopter's noseboom. The external head tracker is largely automatically calibrated using an optimization approach, and therefore works for all trackers and regardless of its mounting positions on vehicle and head. Most of the pre-tests were carried out in a car, which indicates the flexibility in terms of vehicle type. The flight tests have shown that the overall quality of this head-mounted display solution is very good. The conformal holograms are jitter-free, there is no latency and errors of lower frequencies are small enough, which greatly improves immersion. Profiting from almost all features of the HoloLens 2 is a major advantage, especially for rapid research and development.

elib-URL des Eintrags:https://elib.dlr.de/147391/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Flying a helicopter with the HoloLens as head-mounted display
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Walko, ChristianChristian.Walko (at) dlr.dehttps://orcid.org/0000-0002-5001-5089NICHT SPEZIFIZIERT
Maibach, Malte-JörnMalte-Joern.Maibach (at) dlr.dehttps://orcid.org/0000-0001-7266-8542NICHT SPEZIFIZIERT
Datum:12 April 2021
Erschienen in:Proceedings of SPIE - The International Society for Optical Engineering
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.1117/12.2588764
ISSN:0277-786X
Status:veröffentlicht
Stichwörter:HoloLens; helicopter; head-mounted display; augmented reality; pilot assistance; conformal display; human-machine interface
Veranstaltungstitel:SPIE Defense + Commercial Sensing, 2021
Veranstaltungsort:USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:12 April 2021
Veranstaltungsende:16 April 2021
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Effizientes Luftfahrzeug
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L EV - Effizientes Luftfahrzeug
DLR - Teilgebiet (Projekt, Vorhaben):L - Flugzeugtechnologien und Integration, L - Digitale Technologien, L - Flugzeugsysteme, L -  Unterstützung
Standort: Braunschweig
Institute & Einrichtungen:Institut für Flugsystemtechnik > Hubschrauber
Institut für Flugsystemtechnik
Hinterlegt von: Walko, Christian
Hinterlegt am:31 Jan 2022 11:43
Letzte Änderung:10 Jun 2024 12:50

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