The influence of head tracking and stereo on user performance with non-isomorphic 3D rotation

  • Authors:
  • Joseph J. LaViola;Andrew S. Forsberg;John Huffman;Andrew Bragdon

  • Affiliations:
  • University of Central Florida, School of EECS, Orlando, FL;Brown University, Department of Computer Science, Providence, RI;Brown University, Center for Computation and Visualization, Providence, RI;Brown University, Department of Computer Science, Providence, RI

  • Venue:
  • EGVE'08 Proceedings of the 14th Eurographics conference on Virtual Environments
  • Year:
  • 2008

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Abstract

We present an experimental study that explores how head tracking and stereo viewing affect user performance when rotating 3D virtual objects using isomorphic and non-isomorphic rotation techniques. Our experiment com- pares isomorphic with non-isomorphic rotation utilizing four different display modes (no head tracking/no stereo, head tracking/no stereo, no head tracking/stereo, and head tracking/stereo) and two different angular error thresh- olds for task completion. Our results indicate that rotation error is significantly reduced when subjects perform the task using non-isomorphic 3D rotation with head tracking/stereo than with no head tracking/no stereo. In addition, subjects performed the rotation task with significantly less error with head tracking/stereo and no head tracking/stereo than with no head tracking/no stereo, regardless of rotation technique. The majority of the subjects tested also felt stereo and non-isomorphic amplification was important in the 3D rotation task.