Alternative Visual Displays in Support of Wayfinding

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Authors
  1. Kumagai, J.K.
  2. Massel, L.J.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN);Humansystems Inc, Guelph ONT (CAN)
Abstract
For this study, seven different visual helmet-mounted display (HMD) designs were developed based on soldier feedback from previous studies. The displays and an in-service compass condition were contrasted to investigate how the visual HMD interfaces influenced navigation performance. The seven displays examined were 1) a level indicator display, 2) a rolling compass display, 3) a magnitude arrow display, 4) an egocentric moving pointer display, 5) an egocentric fixed pointer display, 6) an exocentric moving display, and 7) a cross-hair display. Displays varied with respect to their information content, frame of reference, point of view, and display features. Twelve male infantry soldiers used all eight display designs to locate bearings to waypoints. From a constant location, participants were required to face waypoints presented at offset bearings of 25, 65, and 120 degrees. Results showed that for time to identify waypoint bearing, performance of the level indicator display, the in-service compass and the rolling compass was inferior to all other displays. For accuracy, all displays were significantly more accurate than the in-service compass. In terms of frequency of misdirection, the level indicator and the exocentric moving pointer display showed more frequent misdirections than did the other 5 displays. Questionnaire results indicated that participants found the level indicator display significantly less easy to use than other displays. Results underscored the potential

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Keywords
Soldier Information Requirements Technology Demonstration Project;SIREQ TD;HMD;Helmet-mounded Display;navigation;GPS;wayfinding;visual displays
Report Number
DRDC-TORONTO-CR-2005-016 — Contractor Report
Date of publication
01 May 2005
Number of Pages
54
DSTKIM No
CA026808
CANDIS No
524770
Format(s):
Electronic Document(PDF)

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