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Proceedings Paper

Helicopter obstacle warning presentation in an HMS/D including 3D stereoscopy
Author(s): Hans-Dieter Viktor Boehm; Stefan Haisch; H. Warnatz; M. Dupuis
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Paper Abstract

An obstacle warning system (OWS) based on a laser-scanning technology has been installed and flight tested on a BK117 Helicopter. An assessment was done in a low level flight test are Nap of the Earth and under real conditions in a normal landscape. The field of view (FOV) of the OWS is 32 degrees and the image has the following resolution: 200 lines and 96 samples. The image refreshing rate is 2 Hz. The OWS front end with sensories and processing is working satisfactory. The major field of investigation is now the Man Machine Interface (MMI). Laser transmitter wavelength is 1.54 micrometers for eye-safety. The obstacle-information must be presented with no additional workload to the pilot in real time. The OWS-data were used in a simulation laboratory and presented to a binocular Helmet Mounted Sight/Display (HMS/D) with different kinds of presentation formats: line of safety, a grid-model, a tunnel-vector-presentation, real 3D-presentation and black and white and colored information. A silicon graphics calculates the independent eye information by 2 by 30 Hz by 3 colors and presents the stereoscopic video to the FS5 helmet made by Virtual Research. It has two colored Cathode Ray Tubes with 480 by 640 pixels. The results with several test persons are discussed in the paper.

Paper Details

Date Published: 11 August 1998
PDF: 13 pages
Proc. SPIE 3362, Helmet- and Head-Mounted Displays III, (11 August 1998); doi: 10.1117/12.317453
Show Author Affiliations
Hans-Dieter Viktor Boehm, Eurocopter Deutschland GmbH (Germany)
Stefan Haisch, Eurocopter Deutschland GmbH (Germany)
H. Warnatz, Eurocopter Deutschland GmbH (Germany)
M. Dupuis, Eurocopter Deutschland GmbH (Germany)


Published in SPIE Proceedings Vol. 3362:
Helmet- and Head-Mounted Displays III
Ronald J. Lewandowski; Loran A. Haworth; Henry J. Girolamo, Editor(s)

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