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Circling motion and screen edges as an alternative input method for on-screen target manipulation.

Hyun W Ka1, Richard C Simpson2

  • 1a Department of Rehabilitation Science and Technology , University of Pittsburgh , Pittsburgh , PA , USA.

Disability and Rehabilitation. Assistive Technology
|January 19, 2016
PubMed
Summary

The novel circling interface offers a faster and more accurate alternative for on-screen object manipulation compared to dwelling interfaces. This method is particularly effective with head-mounted devices and benefits users of assistive technologies.

Keywords:
Adaptive interfaceassistive pointingassistive technologycircling interfacecomputer access

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Area of Science:

  • Human-Computer Interaction
  • Assistive Technology
  • Usability Engineering

Background:

  • Traditional pointing devices often require physical activation of mouse buttons, which can be challenging for some users.
  • Dwell-clicking interfaces, while an alternative, can be less efficient and accurate for precise object manipulation.
  • The need for alternative interaction methods that are efficient, accurate, and compatible with various input devices is critical.

Purpose of the Study:

  • To introduce and investigate a new alternative interaction method: the circling interface for manipulating on-screen objects.
  • To evaluate the effectiveness of the circling interface in comparison to existing methods like physical mouse and dwelling interfaces.
  • To assess performance across different input devices, including normal computer mouse, head pointer, and joystick mouse emulator.

Main Methods:

  • An experiment was conducted with 16 participants to evaluate the circling interface.
  • Performance on pointing tasks was compared using the circling interface, a physical mouse, and a dwelling interface.
  • The study utilized various input devices: a normal computer mouse, a head pointer, and a joystick mouse emulator.

Main Results:

  • The circling interface demonstrated higher performance accuracy than the dwelling interface across all tested pointing operations.
  • Faster performance was observed with the circling interface when using a head-mounted mouse emulator compared to a joystick mouse.
  • The circling interface is compatible with multiple pointing devices and does not require physical mouse button activation.

Conclusions:

  • The circling interface shows significant potential as an alternative pointing method for object selection and manipulation in graphical user interfaces.
  • This method offers improved efficiency over dwell-clicking and eliminates the need for physical mouse button activation, benefiting users with motor impairments.
  • The circling interface is compatible with Augmentative and Alternative Communication (AAC) devices, enhancing its applicability in clinical and rehabilitation settings.