We present a wearable interface that consists of motion
sensors. As the interface can be worn on the user’s fingers
(as a ring) or fixed to it (with nail polish), the device
controlled by finger gestures can be any generic object,
provided they have an interface for receiving the sensor's
signal. We implemented four gestures: tap, release, swipe,
and pitch, all of which can be executed with a finger of the
hand holding the device. In a user study we tested gesture
appropriateness for the index finger at the back of a handheld
tablet that offered three different form factors on its
rear: flat, convex, and concave (undercut). For all three
shapes, the gesture performance was equally good, however
pitch performed better on all surfaces than swipe. The
proposed interface is an example towards the idea of
ubiquitous computing and the vision of seamless
interactions with grasped objects. As an initial application
scenario we implemented a camera control that allows the
brightness to be configured using our tested gestures on a
common SLR device.
7th International Conference on Tangible, Embedded and Embodied Interaction
