Nov 16, 2008

Every Surface a Computer: "Scratch" Capturing Finger Input on Surfaces using Sound. Video by Chris Harrison and Scott Hudson's Video - UIST '08

Chris Harrison and Scott Hudson, from the Human-Computer Interaction Group at Carnegie-Mellon University, presented their latest research at the UIST '08 conference. Take a look at the video below to see how gestures that result in sounds can can transformed on unpowered finger input surfaces, using a stethoscope sensors and filters:

Yes, every surface is a computer!
(Even your pants...)

For detailed information, read the paper presented at UIST '08 by Chris Harrison and Scott E. Hudson:
Scratch Input: Creating Large, Inexpensive, Unpowered, and Mobile Finger Input Surfaces


The Best Paper Award at UIST '08 was "Bringing Physics to the Surface", by Andrew Wilson, of Microsoft Research, and Ahahram Izadi, Otmar Hilliges, Armando Garcia-Mendoza, and David Kirk, of Microsoft Research, Cambridge.

Here is the abstract:

"This paper explores the intersection of emerging surface technologies, capable of sensing multiple contacts and of-ten shape information, and advanced games physics engines. We define a technique for modeling the data sensed from such surfaces as input within a physics simulation. This affords the user the ability to interact with digital objects in ways analogous to manipulation of real objects. Our technique is capable of modeling both multiple contact points and more sophisticated shape information, such as the entire hand or other physical objects, and of mapping this user input to contact forces due to friction and collisions within the physics simulation. This enables a variety of fine-grained and casual interactions, supporting finger-based, whole-hand, and tangible input. We demonstrate how our technique can be used to add real-world dynamics to interactive surfaces such as a vision-based tabletop, creating a fluid and natural experience. Our approach hides from application developers many of the complexities inherent in using physics engines, allowing the creation of applications without preprogrammed interaction behavior or gesture recognition."
Preparation for the Internet of Surfaces & Things?

(Cross-posted on the Technology-Supported Human World Interaction blog)

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