Tilt Techniques

Mahfuz Rahman, et. al., University of Manitoba

Summary

Wrist-tilt has been explored as an input medium with focus on various influencing factors. Results show 16 ‘notches’ of control.

Details

Tilt has slowly become a popular control with usage in changing display mode of photographs, Wii consoles & cursor control. The paper explores design space for  wrist tilt and presents some design guidelines. A TiltControl sensor device was connected to PDA’s serial device to measure tilt angle. Following were the observations and design recommendations made on the basis of that:

• Flexion/extension and pronation/supination can control 12 and 16 levels respectively (5 degrees along axes).
• Performance times ranged from 1.5 to 2 seconds.
• A 3D accelerometer can be used to pick up tilt along three axes.
• Ulnar/radial deviation should be used minimally.
• Discretization has an important role to play in tilt input with quadratic performing best in this study.

Review

The work has been well written and performs design space exploration for wrist-tilt inputs which could be useful for applications planning to use this mode of interaction in future.

Disclaimer

The work discussed above is an original work presented at CHI 2009 by the authors/affiliations indicated at the starting of this post. This post in itself was created as part of course requirement of CPSC 436.