A Context Menu for the Real World: Controlling Physical Appliances Through Head-Worn Infrared Targeting


Yu-Hsiang Chen, Ben Zhang, Claire Tuna, Yang Li, Edward A. Lee and Björn Hartmann

EECS Department
University of California, Berkeley
Technical Report No. UCB/EECS-2013-182
November 4, 2013

We introduce a novel method for selecting and controlling smart appliances in physical spaces through a head-worn computing device with near-eye display and wireless communication. We augment a commercial wearable computing device, Google Glass, with a narrow-beam IR emitter for this purpose. This configuration yields a usable beam width of 2 to 4 feet (60 to 120cm) for targeting at room scale. We describe a disambiguation technique if infrared targeting hits multiple targets simultaneously. A target acquisition study with 14 participants shows that selection using head orientation with our device outperforms list selection on a wearable device. We also report qualitative data from using our device to control multiple appliances in a smart home scenario.