June 2004
Volume 4, Issue 8
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2004
Compression of distance perception in a live-video-fed head mounted display
Author Affiliations
  • Ross B. Messing
    Swarthmore College, USA
Journal of Vision August 2004, Vol.4, 382. doi:10.1167/4.8.382
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      Ross B. Messing, Frank H. Durgin; Compression of distance perception in a live-video-fed head mounted display. Journal of Vision 2004;4(8):382. doi: 10.1167/4.8.382.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

It has been shown that distance perception, as measured by subjects walking to previously viewed targets, is compressed in virtual reality head-mounted displays (HMDs) relative to normal viewing. This disparity between normal viewing and HMD viewing has been investigated in a number of studies. Thompson et al. showed that the level of detail in a virtual environment is not a significant factor in the amount of distance compression experienced (Thompson et al., 2003). Creem-Regehr et al. showed that by themselves, neither monocular viewing nor restricted field of view caused distance compression in real-world viewing conditions (Creem-Regehr et al., 2003). These findings led us to hypothesize that the distance compression was the result of the optical aspects of the HMD system. We mounted a FOV-matched video camera system on the HMD (V8 – 60 deg. diagonal FOV), and fed the live video back to the HMD. This novel apparatus (inspired by an informal observation in Loomis & Knapp, 2003) was designed to differ from real-world viewing conditions only in terms of signal delay, physical properties (the weight of the HMD), and optical properties, specifically field-of-view, focal length, and image resolution. A direct walking task was used to compare this novel apparatus to both unrestricted monocular viewing, and monocular viewing with a restricted field of view. Distance compression in the video-feed HMD condition was significantly greater than that found in either the unrestricted monocular or field-of-view restricted monocular viewing conditions. This suggests that distance compression in HMD systems is due to the physical properties of the display system, or the optical properties of the head-mounted display, although the substantial time lag in our video-feed HMD system could also be responsible, in this case.

Hans Wallach Fellowship to RBM and Swarthmore College Faculty Research Grant to FHD

Messing, R. B., Durgin, F. H.(2004). Compression of distance perception in a live-video-fed head mounted display [Abstract]. Journal of Vision, 4( 8): 382, 382a, http://journalofvision.org/4/8/382/, doi:10.1167/4.8.382. [CrossRef]
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