Skip to main content
Article thumbnail
Location of Repository

PocketTouch: through-fabric capacitive touch input

By T. Scott, Saponas Chris Harrison and Hrvoje Benko


PocketTouch is a capacitive sensing prototype that enables eyes-free multitouch input on a handheld device without having to remove the device from the pocket of one‘s pants, shirt, bag, or purse. PocketTouch enables a rich set of gesture interactions, ranging from simple touch strokes to full alphanumeric text entry. Our prototype device consists of a custom multitouch capacitive sensor mounted on the back of a smartphone. Similar capabilities could be enabled on most existing capacitive touchscreens through low-level access to the capacitive sensor. We demonstrate how touch strokes can be used to initialize the device for interaction and how strokes can be processed to enable text recognition of characters written over the same physical area. We also contribute a comparative study that empirically measures how different fabrics attenuate touch inputs, providing insight for future investigations. Our results suggest that PocketTouch will work reliably with a wide variety of fabrics used in today‘s garments, and is a viable input method for quick eyes-free operation of devices in pockets. ACM Classification: H.5.2 [Information interfaces an

Topics: General terms, Algorithms, Design, Human Factors Keywords, Touch, gestures, eyes-free, touch-stroke text entry, always-available input
Year: 2011
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.