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Proceedings Paper

Testing and evaluation of a wearable augmented reality system for natural outdoor environments
Author(s): David Roberts; Alberico Menozzi; James Cook; Todd Sherrill; Stephen Snarski; Pat Russler; Brian Clipp; Robert Karl; Eric Wenger; Matthew Bennett; Jennifer Mauger; William Church; Herman Towles; Stephen MacCabe; Jeffrey Webb; Jasper Lupo; Jan-Michael Frahm; Enrique Dunn; Christopher Leslie; Greg Welch
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Paper Abstract

This paper describes performance evaluation of a wearable augmented reality system for natural outdoor environments. Applied Research Associates (ARA), as prime integrator on the DARPA ULTRA-Vis (Urban Leader Tactical, Response, Awareness, and Visualization) program, is developing a soldier-worn system to provide intuitive ‘heads-up’ visualization of tactically-relevant geo-registered icons. Our system combines a novel pose estimation capability, a helmet-mounted see-through display, and a wearable processing unit to accurately overlay geo-registered iconography (e.g., navigation waypoints, sensor points of interest, blue forces, aircraft) on the soldier’s view of reality. We achieve accurate pose estimation through fusion of inertial, magnetic, GPS, terrain data, and computer-vision inputs. We leverage a helmet-mounted camera and custom computer vision algorithms to provide terrain-based measurements of absolute orientation (i.e., orientation of the helmet with respect to the earth). These orientation measurements, which leverage mountainous terrain horizon geometry and mission planning landmarks, enable our system to operate robustly in the presence of external and body-worn magnetic disturbances. Current field testing activities across a variety of mountainous environments indicate that we can achieve high icon geo-registration accuracy (<10mrad) using these vision-based methods.

Paper Details

Date Published: 16 May 2013
PDF: 16 pages
Proc. SPIE 8735, Head- and Helmet-Mounted Displays XVIII: Design and Applications, 87350A (16 May 2013); doi: 10.1117/12.2015621
Show Author Affiliations
David Roberts, Applied Research Associates (United States)
Alberico Menozzi, Applied Research Associates (United States)
James Cook, Applied Research Associates (United States)
Todd Sherrill, Applied Research Associates (United States)
Stephen Snarski, Applied Research Associates (United States)
Pat Russler, Applied Research Associates (United States)
Brian Clipp, Applied Research Associates (United States)
Robert Karl, Applied Research Associates (United States)
Eric Wenger, Applied Research Associates (United States)
Matthew Bennett, Applied Research Associates (United States)
Jennifer Mauger, Applied Research Associates (United States)
William Church, Applied Research Associates (United States)
Herman Towles, Applied Research Associates (United States)
Stephen MacCabe, Applied Research Associates (United States)
Jeffrey Webb, Applied Research Associates (United States)
Jasper Lupo, Applied Research Associates (United States)
Jan-Michael Frahm, Univ. of North Carolina at Chapel Hill (United States)
Enrique Dunn, Univ. of North Carolina at Chapel Hill (United States)
Christopher Leslie, Univ. of North Carolina at Chapel Hill (United States)
Greg Welch, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 8735:
Head- and Helmet-Mounted Displays XVIII: Design and Applications
Peter L. Marasco; Paul R. Havig, Editor(s)

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