<s>
OmniTouch	B-Device
is	O
a	O
wearable	B-Operating_System
computer	I-Operating_System
,	O
depth-sensing	O
camera	O
and	O
projection	O
system	O
that	O
enables	O
interactive	O
multitouch	B-Application
interfaces	O
on	O
everyday	O
surface	O
.	O
</s>
<s>
On	O
such	O
surfaces	O
-	O
without	O
any	O
calibration	O
-	O
OmniTouch	B-Device
provides	O
capabilities	O
similar	O
to	O
that	O
of	O
a	O
touchscreen	B-Device
:	O
X	O
and	O
Y	O
location	O
in	O
2D	O
interfaces	O
and	O
whether	O
fingers	O
are	O
“	O
clicked	O
”	O
or	O
hovering	O
.	O
</s>
<s>
This	O
is	O
approaching	O
the	O
accuracy	O
of	O
capacitive	O
touchscreens	B-Device
,	O
like	O
those	O
found	O
in	O
smart	O
phones	O
,	O
but	O
on	O
arbitrary	O
surfaces	O
.	O
</s>
<s>
OmniTouch	B-Device
was	O
developed	O
by	O
researchers	O
Chris	O
Harrison	O
,	O
Hrvoje	O
Benko	O
and	O
Andy	O
Wilson	O
at	O
Microsoft	O
Research	O
in	O
2011	O
.	O
</s>
<s>
It	O
is	O
conceptually	O
similar	O
to	O
efforts	O
such	O
as	O
Skinput	B-Device
and	O
SixthSense	B-General_Concept
.	O
</s>
<s>
A	O
central	O
contribution	O
of	O
the	O
work	O
was	O
a	O
novel	O
depth-driven	O
,	O
fuzzy	O
template	B-Algorithm
matching	I-Algorithm
approach	O
to	O
finger	B-Algorithm
tracking	I-Algorithm
and	O
click	O
registration	O
.	O
</s>
