Skinput Technology
The primary goal of Skinput is to provide an alwaysavailable mobile
input system – that is, an input system that does not require a user to carry
or pick up a device. A number of alternative approaches have been proposed that
operate in this space. Techniques based on computer vision are popular These,
however, are computationally expensive and error prone in mobile scenarios
(where, e.g., non-input optical flow is prevalent). Speech input is a logical
choice for always-available input, but is limited in its precision in
unpredictable acoustic environments, and suffers from privacy and scalability
issues in shared environments. Other approaches have taken the form of wearable
computing.
The Microsoft company have developed Skinput , a technology that
appropriates the human body for acoustic transmission, allowing the skin to be
used as an input surface. In particular, we resolve the location of finger taps
on the arm and hand by analyzing mechanical vibrations that propagate through
the body. We collect these signals using a novel array of sensors worn as an
armband. This approach provides an always available, naturally portable, and
on-body finger input system. We assess the capabilities, accuracy and
limitations of our technique through a two-part, twenty-participant user study.
To further illustrate the utility of our approach, we conclude with several
proof-of-concept applications we developed.
You can download Skinput Technology seminar abstract from here.
9 Sep 2013
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