Building on Buxton's foreground/background model, we discuss the importance of explicitly
considering both foreground interaction and background interaction, as well as transitions …

We present StarLight, an infrastructure-based sensing system that reuses light emitted from
ceiling LED panels to reconstruct fine-grained user skeleton postures continuously in real …

Mobile devices are endowed with significant sensing capabilities. However, their ability
to'see'their surroundings, during active use, is limited. We present Surround-See, a self …

Gestures above a mobile phone would let users interact with their devices quickly and easily
from a distance. While both researchers and smartphone manufacturers develop new …

We present a novel machine learning based algorithm extending the interaction space
around mobile devices. The technique uses only the RGB camera now commonplace on off …

One approach to building complex software product families is to partition the possible
functions of the system into conceptual chunks called features. Ideally, system instances are …

Movements of interfaces can be analyzed in terms of whether they are expected, sensed,
and desired. Expected movements are those that users naturally perform; sensed are those …

We describe experiments in recognizing a person's situation from only a wearable camera
and microphone. The types of situations considered in these experiments are coarse …

The research topic of looking at people, that is, giving machines the ability to detect, track,
and identify people and more generally, to interpret human behavior, has become a central …

Scanning and processing visual stimuli in a scene is essential for the human brain to make
situation-aware decisions. Adding the ability to observe the scanning behavior and scene …