22 May 1995 HMD symbol stabilization concepts
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Abstract
Helmet-mounted displays (HMDs) present flight, navigation, and weapon information in the pilot's line of sight. The HMD was developed to allow the pilot to retain aircraft and weapon information while looking off boresight. Symbol stabilization is a key issue for HMDs. In current equipment, the lack of compensation for pilot head motion creates excessive workload during hovering and nap-of-the-earth flight. This high workload translates into excessive training requirements. At the same time, misleading symbology makes interpretation of the height of obstructions impossible. A set of standardized coordinate transformations are necessary for the development of HMD symbology and the control laws. Part of the problem is there is no agreed upon set of definitions or descriptions for how HMD symbols are driven to compensate for pilot head motion. A candidate set of coordinate definitions is proposed to address this issue.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard L. Newman, Richard L. Newman, Kevin W. Greeley, Kevin W. Greeley, } "HMD symbol stabilization concepts", Proc. SPIE 2465, Helmet- and Head-Mounted Displays and Symbology Design Requirements II, (22 May 1995); doi: 10.1117/12.209734; https://doi.org/10.1117/12.209734
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