Interacting with mobile devices using touch can lead to fingers occluding valuable screen
real estate. For the smallest devices, the idea of using a touch-enabled display is almost …

ThinSight is a novel optical sensing system, fully integrated into a thin form factor display,
capable of detecting multi-ple fingers placed on or near the display surface. We describe this …

The touch screen interaction paradigm, currently dominant in mobile devices, begins to fail
when very small systems are considered. Specifically," fat fingers", a term referring to the fact …

In this paper, we explore how to add pointing input capabilities to very small screen devices.
On first sight, touchscreens seem to allow for particular compactness, because they integrate …

Sensing the depth (distance from the surface) of fingers/hands near a tabletop is very
important. It allows us to use three-dimensional (3D) gesture interaction in multi-touch …

We present Magic Finger, a small device worn on the fingertip, which supports always-
available input. Magic Finger inverts the typical relationship between the finger and an …

We present a method to enable multi-touch interactions on an arbitrary flat surface using a
pair of cameras mounted above the surface. Current systems in this domain mostly make …

The size of human fingers and the lack of sensing precision can make precise touch screen
interactions difficult. We present a set of five techniques, called Dual Finger Selections …

We show how to design touchscreen widgets that respond to a finger's contact area. In
standard touchscreen systems a finger often appears to touch several screen objects, but …

Current interactions on direct-touch interactive surfaces are often modeled based on
properties of the input channel that are common in traditional graphical user interfaces (GUI) …