Automotive User Interfaces and Interactive Vehicular Applications
Automotive User Interfaces and Interactive Vehicular Applications
Automotive User Interfaces and Interactive Vehicular Applications
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
3D THEREMIN<br />
Convenient “Point & Click”-Interactions in Vehicles<br />
Motivation<br />
• Proximity sensing device: Theremin<br />
• Allows mouse-like control in office environment or in-car screen<br />
• Good performance in single task experiment (baseline)<br />
• Increased performance even after short training phases<br />
• Only little drop in performance under dual task condition<br />
• Suitable device for implicit input, but not capable of<br />
“point&click” interactions or multitouch operation<br />
cancel<br />
(x',y')<br />
Major Benefits<br />
• Independent from interfering light conditions<br />
• Contactless user interaction (no extra device needed)<br />
• Requires only little computational power<br />
• Can be integrated into various objects (in-car use: on<br />
gearshift, steering wheel, electric windows, etc.)<br />
• Universal use (mapping gesture - function/comm<strong>and</strong>)<br />
Remaining Issues<br />
y<br />
in-vehicle screen<br />
z<br />
(x,y)<br />
• Interference between the 2 theremins (4 antennae)<br />
• Filtering of “double coordinates” near the point of origin (0; 0; z)<br />
• Optimization of click detection<br />
• Visualization (HUD, in-car screen, etc.)<br />
• Dynamic recalibration to stabilize cursor position<br />
• Location of the interface in the vehicle<br />
• (Long term) influence of the interaction on driver's cognitive load<br />
Acknowledgements: This work is supported under the FP7 ICT Future Enabling Technology program of the European Commission under grant agreement No. 231288 (SOCIONICAL)<br />
Contact<br />
Dr. Andreas Riener, Philipp Wintersberger<br />
JKU, Institute for Pervasive Computing, A-4040 Linz, Austria<br />
x<br />
Theremin<br />
PAiA<br />
ADC<br />
9505 USB<br />
Theremin<br />
PAiA<br />
ADC<br />
9505 USB<br />
C#<br />
...<br />
....<br />
. ... ....<br />
.. .....<br />
... ...<br />
.. ..<br />
..<br />
.<br />
PC<br />
Application of the 2D theremin interface while driving.<br />
2D→3D Theremin<br />
• Extension with third antennae (z axis)<br />
• Allows for ”point&click" or ”click&zoom”<br />
interaction<br />
• x <strong>and</strong> y axis used for position estimation,<br />
z axis evaluated wrt. click actions<br />
0<br />
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5<br />
Significant rise in Fitt's law performance after a short training sesssion.<br />
• Capability of pattern recognition techniques to improve recognition rate <strong>and</strong> overall system stability<br />
4,000<br />
3,500<br />
3,000<br />
2,500<br />
2,000<br />
1,500<br />
1,000<br />
500<br />
exp., full trained, CI=95%<br />
y = 2e+002*x + 460<br />
exp., untrained, CI=95%<br />
y = 6.2e+002*x + 81<br />
3D Theremin<br />
(combination of<br />
2 x PAiA 9505)<br />
Institute for<br />
Pervasive Computing<br />
Technology for People
Change language