The Haptic Hand: Providing User Interface Feedback with the Non-Dominant Hand in Virtual Environments - PowerPoint PPT Presentation

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The Haptic Hand: Providing User Interface Feedback with the Non-Dominant Hand in Virtual Environments

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Second attempt. Results. Future work. Problem. Lack of touch feedback (haptics) in VR is ... First attempt. No calibration. Interface floats in virtual world ... – PowerPoint PPT presentation

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Title: The Haptic Hand: Providing User Interface Feedback with the Non-Dominant Hand in Virtual Environments


1
The Haptic Hand Providing User Interface
Feedback with the Non-Dominant Hand in Virtual
Environments
  • Luv Kohli
  • INLS357
  • December 1, 2004
  • Final Project

2
Outline
  • Problem
  • Current techniques
  • Idea
  • First attempt
  • Issues
  • Second attempt
  • Results
  • Future work

3
Problem
  • Lack of touch feedback (haptics) in VR is
    disturbing
  • Interaction without haptics is difficult
  • How do you present an interface to the user?

4
Current techniques
Images from Robert Lindeman
5
Idea
  • Carrying a paddle can be tiresome
  • How do you get rid of the paddle when you dont
    need the interface anymore?
  • Idea use surface of non-dominant hand for haptic
    feedback
  • Is this feasible?

6
Trackers
7
First attempt
  • No calibration
  • Interface floats in virtual world
  • Activate widget by moving open non-dominant hand
    behind widget
  • Point with dominant hand to use widget
  • Grasping panel with non-dominant hand moves panel
    with hand

8
Issues and qualitative observations from pilot
tests
  • Lack of haptics strikes again!
  • Extremely difficult to line hand up with
    interface and remain steady
  • Observation may be better to snap interface to
    hands plane in the environment and move panel
    with open hand

9
A new problem surfaces
  • If the panel is moving with your open hand, how
    do you select which widget to activate?

10
A possible solution?
  • Reverse gestures!
  • Grasping gesture now frees hand from panel and
    allows widget selection
  • Grasping and ungrasping snaps closest widget to
    hand
  • Unintuitive at first, but learned quickly

11
Second attempt
  • Reversed gestures
  • Added some calibration

12
Results
13
Qualitative observations from pilot tests
  • Snapping panel to hand is much more effective
  • Reversed gestures are learned very quickly
  • Calibration still a very large issue
  • Especially registration between right and left
    hands

14
Future Work
  • Improve calibration!
  • Run full usability study once calibration changes
    are made
  • Run study directly comparing with paddle interface

15
Comments? Questions?
Thank you!
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