Separating the effects of level of immersion and 3D interaction techniques

Proceedings of the ACM symposium on Virtual reality software and technology - VRST '06 (2006), doi: 10.1145/1180495.1180518
Experiments
Tasks
Findings

Study the seperated effects of level of immersion and 3D interaction technique for a six-degree-of-freedom manipulation task

Variables and Constants

Independent Variables
Constants

No confounds

System Info

Displays
Input Hardware
  • is-900 - 6 dof wand device with 4 buttons and 2-dof joystick
  • keyboard & mouse - this was used for the do-it technique
Software

Participant Info

9 male, 3 female. All but two used computers often.

Total # Age Range Gender Balance
12 18 -

To move twenty 3D objects to corresponding targets and to match both the position and orientation of the objects with those of the target bins.

Interaction and Environment

Interface

Between-subjects, participants either used HOMER, Go-Go, or the Desktop-Oriented Interaction-Technique (DO-IT) to manipulate the 3D objects.

A green ground with black skies and 20 white objects and 4 blue object bins.

Dimensionality Scale Density Visual Realism
2.5D Small Low Low
Metrics

  • user preference - they measured how easy and natural the technique was to use, and whether components of immersion helped the technique
  • time - completion time
  • accuracy - number of object clutches
  1. There was a significant inverse effect of interaction technique on time for a object manipulation task.

    Interaction fidelity resulted in significantly decreased object manipulation times

    Specificity: Neither

  2. There was a significant direct effect of interaction technique on accuracy for a object manipulation task.

    Increased interaction fidelity resulted in decreased number of object clutches

    Specificity: Neither

  3. There was a significant direct effect of interaction technique on user preference for a object manipulation task.

    Increased interaction fidelity resulted in improved user preferences

    Specificity: Neither