Image tiling for a high-resolution helmet-mounted display

Russell M. Kurtz; Ranjit D. Pradhan; Tin M. Aye; Kang-Bin Chua; Indra Tengara; Nay Tun; Tin Win; Jason Holmstedt; Axel Schindler; Steffen Hergert

doi:10.1117/12.604157

19 May 2005 Image tiling for a high-resolution helmet-mounted display

Russell M. Kurtz, Ranjit D. Pradhan, Tin M. Aye, Kang-Bin Chua, Indra Tengara, Nay Tun, Tin Win, Jason Holmstedt, Axel Schindler, Steffen Hergert

Author Affiliations +

Proceedings Volume 5800, Helmet- and Head-Mounted Displays X: Technologies and Applications; (2005) https://doi.org/10.1117/12.604157
Event: Defense and Security, 2005, Orlando, Florida, United States

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.

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Russell M. Kurtz, Ranjit D. Pradhan, Tin M. Aye, Kang-Bin Chua, Indra Tengara, Nay Tun, Tin Win, Jason Holmstedt, Axel Schindler, and Steffen Hergert "Image tiling for a high-resolution helmet-mounted display", Proc. SPIE 5800, Helmet- and Head-Mounted Displays X: Technologies and Applications, (19 May 2005); https://doi.org/10.1117/12.604157

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KEYWORDS

Head-mounted displays

Image resolution

Spatial light modulators

Prototyping

Eye

Modulation transfer functions

LCDs

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