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Proceedings Paper

Image tiling for a high-resolution helmet-mounted display
Author(s): Russell M. Kurtz; Ranjit D. Pradhan; Tin M. Aye; Kang-Bin Chua; Indra Tengara; Nay Tun; Tin Win; Jason Holmstedt; Axel Schindler; Steffen Hergert
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Paper Abstract

Head-mounted or helmet-mounted displays (HMDs) have long proven invaluable for many military applications. Integrated with head position, orientation, and/or eye-tracking sensors, HMDs can be powerful tools for training. For such training applications as flight simulation, HMDs need to be lightweight and compact with good center-of-gravity characteristics, and must display realistic full-color imagery with eye-limited resolution and large field-of-view (FOV) so that the pilot sees a truly realistic out-the-window scene. Under bright illumination, the resolution of the eye is ~300 μr (1 arc-min), setting the minimum HMD resolution. There are several methods of achieving this resolution, including increasing the number of individual pixels on a CRT or LCD display, thereby increasing the size, weight, and complexity of the HMD; dithering the image to provide an apparent resolution increase at the cost of reduced frame rate; and tiling normal resolution subimages into a single, larger high-resolution image. Physical Optics Corporation (POC) is developing a 5120 × 4096 pixel HMD covering 1500 × 1200 mr with resolution of 300 μr by tiling 20 subimages, each of which has a resolution of 1024 × 1024 pixels, in a 5 × 4 array. We present theory and results of our preliminary development of this HMD, resulting in a 4k × 1k image tiled from 16 subimages, each with resolution 512 × 512, in an 8 × 2 array.

Paper Details

Date Published: 19 May 2005
PDF: 8 pages
Proc. SPIE 5800, Helmet- and Head-Mounted Displays X: Technologies and Applications, (19 May 2005); doi: 10.1117/12.604157
Show Author Affiliations
Russell M. Kurtz, Physical Optics Corp. (United States)
Ranjit D. Pradhan, Physical Optics Corp. (United States)
Tin M. Aye, Physical Optics Corp. (United States)
Kang-Bin Chua, Physical Optics Corp. (United States)
Indra Tengara, Physical Optics Corp. (United States)
Nay Tun, Physical Optics Corp. (United States)
Tin Win, Physical Optics Corp. (United States)
Jason Holmstedt, Physical Optics Corp. (United States)
Axel Schindler, Physical Optics Corp. (United States)
Steffen Hergert, Physical Optics Corp. (United States)

Published in SPIE Proceedings Vol. 5800:
Helmet- and Head-Mounted Displays X: Technologies and Applications
Clarence E. Rash; Colin E. Reese, Editor(s)

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