Touch+: Expanding Touch Input Vocabulary using a Smartphone and a Smartwatch.

In this video, we present a new interaction technique, called Touch+, which expands touch input vocabulary by using both mobile devices and wrist-worn devices. This technique enables to recognize twisting, rolling, and lifting of a finger while it is touching the device. Moreover, our system differentiates between a fast touch (release) and a normal touch (release). This is achieved by calculating the relative differences in a movement speed and an angle between the smartphone and the smartwatch. To illustrate the potential of our approach, we developed a set of possible applications. We believe that Touch+ will open a large area for designing input interactions of mobile devices by combining wrist-worn devices.