Abstract：
:An increasing number of neuroscience experiments are using virtual reality to provide a more immersive and less artificial experimental environment. This is particularly useful to navigation and three-dimensional scene perception experiments. Such experiments require accurate real-time tracking of the observer's head in order to render the virtual scene. Here, we present data on the accuracy of a commonly used six degrees of freedom tracker (Intersense IS900) when it is moved in ways typical of virtual reality applications. We compared the reported location of the tracker with its location computed by an optical tracking method. When the tracker was stationary, the root mean square error in spatial accuracy was 0.64 mm. However, we found that errors increased over ten-fold (up to 17 mm) when the tracker moved at speeds common in virtual reality applications. We demonstrate that the errors we report here are predominantly due to inaccuracies of the IS900 system rather than the optical tracking against which it was compared.
journal_name
J Neurosci Methodsjournal_title
Journal of neuroscience methodsauthors
Gilson SJ,Fitzgibbon AW,Glennerster Adoi
10.1016/j.jneumeth.2005.12.013subject
Has Abstractpub_date
2006-06-30 00:00:00pages
175-82issue
1-2eissn
0165-0270issn
1872-678Xpii
S0165-0270(05)00460-7journal_volume
154pub_type
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journal_title：Journal of neuroscience methods
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pub_type： 杂志文章
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