When an immersive virtual environment spans an area that is larger than the available physical space for real walking, one may use an 'augmented walking' method such as Seven League Boots to enable participants to explore the space while gaining proprioceptive feedback that is similar to what they would experience with normal walking. In this paper, we present the results of a preliminary experiment in which we seek to quantitatively assess the extent to which participants are able to make more accurate spatial judgments about the locations of previously-seen targets in a complicated virtual city environment, experienced using a head-mounted display, after traveling to them using augmented real walking ('boots') versus virtual walking enabled by a button press on a hand-held wand. In a series of trials, we ask participants to follow paths of increasing complexity from a home base to different hidden targets in the environment and back. At each endpoint, with the path markings turned off, we ask participants to point, through the intervening alleyway walls, to the location they believe they started from. Participants are able to make real turns with their bodies in both locomotion conditions, however they are able to make real forward movement only under the augmented walking condition. Each participant completes eight trials under each locomotion condition, with the target locations and the order of experiencing each method counterbalanced between participants. In data collected from six participants so far, we are finding that the median angle error is significantly greater, overall, in the wand locomotion condition than in the 'boots' locomotion condition, and that the errors tend to increase, overall, as the path complexity increases (from two segments to four segments) in the wand locomotion condition but not in the 'boots' locomotion condition.
|Original language||English (US)|
|Title of host publication||Eurographics Symposium on Virtual Environments, EGVE 2007 - Short Papers and Posters|
|Editors||Bernd Froehlich, Roland Blach, Robert van Liere|
|Publisher||The Eurographics Association|
|Number of pages||4|
|State||Published - 2007|
|Event||13th Eurographics Symposium on Virtual Environments, EGVE 2007 - Weimar, Germany|
Duration: Jul 15 2007 → Jul 18 2007
|Name||Eurographics Symposium on Virtual Environments, EGVE 2007 - Short Papers and Posters|
|Conference||13th Eurographics Symposium on Virtual Environments, EGVE 2007|
|Period||7/15/07 → 7/18/07|
Bibliographical noteFunding Information:
Science Foundation (IIS--0313226), and by the University of Minnesota through a Digital Technology Center seed grant and by the Linda and Ted Johnson Digital Design Consortium Endowment and Lab Setup Funds. Eleanor O’Rourke and Leanne Gray were supported in this work by the NSF-funded CRA-W Distributed Mentor Program, which enabled them to spend the summer of 2006 working at the University of Minnesota on this project.
© The Eurographics Association 2007.