<s>
Stereotaxy	B-General_Concept
(	O
from	O
stereo	O
meaning	O
"	O
solidity	O
"	O
,	O
and	O
tactile	O
meaning	O
"	O
touch	O
"	O
)	O
refers	O
to	O
any	O
technique	O
that	O
involves	O
the	O
recording	O
and	O
reproduction	O
of	O
three-dimensional	O
haptic	O
information	O
or	O
creating	O
an	O
illusion	O
of	O
depth	O
to	O
the	O
sense	O
of	O
touch	O
within	O
an	O
otherwise-flat	O
surface	O
.	O
</s>
<s>
Unlike	O
the	O
current	O
trend	O
in	O
haptic	B-Device
technology	I-Device
to	O
provide	O
haptic	O
perception	O
of	O
simulated	O
,	O
virtual	O
objects	O
within	O
an	O
augmented-reality	O
(	O
that	O
is	O
,	O
within	O
a	O
mostly-realistic	O
)	O
setting	O
,	O
stereohapty	B-General_Concept
,	O
which	O
,	O
when	O
applied	O
as	O
a	O
field	O
of	O
study	O
,	O
is	O
known	O
as	O
stereohaptics	O
or	O
stereotactics	O
,	O
stereotaxy	B-General_Concept
aims	O
to	O
provide	O
an	O
illusion	O
of	O
three-dimensional	O
depth	O
to	O
the	O
sense	O
of	O
touch	O
by	O
the	O
human	O
body	O
.	O
</s>
<s>
This	O
resembles	O
how	O
stereoscopy	B-Algorithm
,	O
its	O
visual	O
counterpart	O
,	O
is	O
meant	O
to	O
provide	O
a	O
visual	O
illusion	O
of	O
depth	O
to	O
otherwise-flat	O
images	O
(	O
such	O
as	O
3-D	B-Algorithm
films	I-Algorithm
)	O
,	O
a	O
process	O
known	O
as	O
stereopsis	B-Algorithm
.	O
</s>
