<s>
An	O
EyeTap	B-General_Concept
is	O
a	O
concept	O
for	O
a	O
wearable	B-Operating_System
computing	I-Operating_System
device	O
that	O
is	O
worn	O
in	O
front	O
of	O
the	O
eye	O
that	O
acts	O
as	O
a	O
camera	O
to	O
record	O
the	O
scene	O
available	O
to	O
the	O
eye	O
as	O
well	O
as	O
a	O
display	O
to	O
superimpose	O
computer-generated	O
imagery	O
on	O
the	O
original	O
scene	O
available	O
to	O
the	O
eye	O
.	O
</s>
<s>
This	O
structure	O
allows	O
the	O
user	O
's	O
eye	O
to	O
operate	O
as	O
both	O
a	O
monitor	O
and	O
a	O
camera	O
as	O
the	O
EyeTap	B-General_Concept
intakes	O
the	O
world	O
around	O
it	O
and	O
augments	O
the	O
image	O
the	O
user	O
sees	O
allowing	O
it	O
to	O
overlay	O
computer-generated	O
data	O
over	O
top	O
of	O
the	O
normal	O
world	O
the	O
user	O
would	O
perceive	O
.	O
</s>
<s>
In	O
order	O
to	O
capture	O
what	O
the	O
eye	O
is	O
seeing	O
as	O
accurately	O
as	O
possible	O
,	O
an	O
EyeTap	B-General_Concept
uses	O
a	O
beam	O
splitter	O
to	O
send	O
the	O
same	O
scene	O
(	O
with	O
reduced	O
intensity	O
)	O
to	O
both	O
the	O
eye	O
and	O
a	O
camera	O
.	O
</s>
<s>
Stereo	O
EyeTaps	B-General_Concept
modify	O
light	O
passing	O
through	O
both	O
eyes	O
,	O
but	O
many	O
research	O
prototypes	O
(	O
mainly	O
for	O
reasons	O
of	O
ease	O
of	O
construction	O
)	O
only	O
tap	O
one	O
eye	O
.	O
</s>
<s>
EyeTap	B-General_Concept
is	O
also	O
the	O
name	O
of	O
an	O
organization	O
founded	O
by	O
inventor	O
Steve	O
Mann	O
to	O
develop	O
and	O
promote	O
EyeTap-related	O
technologies	O
such	O
as	O
wearable	B-Operating_System
computers	I-Operating_System
.	O
</s>
<s>
An	O
EyeTap	B-General_Concept
is	O
somewhat	O
like	O
a	O
head-up	B-Application
display	I-Application
(	O
HUD	B-Application
)	O
.	O
</s>
<s>
The	O
important	O
difference	O
is	O
that	O
the	O
scene	O
available	O
to	O
the	O
eye	O
is	O
also	O
available	O
to	O
the	O
computer	O
that	O
projects	O
the	O
head-up	B-Application
display	I-Application
.	O
</s>
<s>
This	O
enables	O
the	O
EyeTap	B-General_Concept
to	O
modify	O
the	O
computer	O
generated	O
scene	O
in	O
response	O
to	O
the	O
natural	O
scene	O
.	O
</s>
<s>
One	O
use	O
,	O
for	O
instance	O
,	O
would	O
be	O
a	O
sports	O
EyeTap	B-General_Concept
:	O
here	O
the	O
wearer	O
,	O
while	O
in	O
a	O
stadium	O
,	O
would	O
be	O
able	O
to	O
follow	O
a	O
particular	O
player	O
in	O
a	O
field	O
and	O
have	O
the	O
EyeTap	B-General_Concept
display	O
statistics	O
relevant	O
to	O
that	O
player	O
as	O
a	O
floating	O
box	O
above	O
the	O
player	O
.	O
</s>
<s>
Another	O
practical	O
use	O
for	O
the	O
EyeTap	B-General_Concept
would	O
be	O
in	O
a	O
construction	O
yard	O
as	O
it	O
would	O
allow	O
the	O
user	O
to	O
reference	O
the	O
blueprints	O
,	O
especially	O
in	O
a	O
3D	O
manner	O
,	O
to	O
the	O
current	O
state	O
of	O
the	O
building	O
,	O
display	O
a	O
list	O
of	O
current	O
materials	O
and	O
their	O
current	O
locations	O
as	O
well	O
perform	O
basic	O
measurements	O
.	O
</s>
<s>
Or	O
,	O
even	O
in	O
the	O
business	O
world	O
,	O
the	O
EyeTap	B-General_Concept
has	O
great	O
potential	O
,	O
for	O
it	O
would	O
be	O
capable	O
of	O
delivering	O
to	O
the	O
user	O
constant	O
up	O
to	O
date	O
information	O
on	O
the	O
stock	O
market	O
,	O
the	O
user	O
's	O
corporation	O
,	O
and	O
meeting	O
statuses	O
.	O
</s>
<s>
The	O
EyeTap	B-General_Concept
Criteria	O
are	O
an	O
attempt	O
to	O
define	O
how	O
close	O
a	O
real	O
,	O
practical	O
device	O
comes	O
to	O
such	O
an	O
ideal	O
.	O
</s>
<s>
EyeTaps	B-General_Concept
could	O
have	O
great	O
use	O
in	O
any	O
field	O
where	O
the	O
user	O
would	O
benefit	O
from	O
real-time	O
interactive	O
information	O
that	O
is	O
largely	O
visual	O
in	O
nature	O
.	O
</s>
<s>
This	O
is	O
sometimes	O
referred	O
to	O
as	O
computer-mediated	O
reality	O
,	O
commonly	O
known	O
as	O
augmented	B-General_Concept
reality	I-General_Concept
.	O
</s>
<s>
Eyetap	B-General_Concept
has	O
been	O
explored	O
as	O
a	O
potential	O
tool	O
for	O
individuals	O
with	O
visual	O
disabilities	O
due	O
to	O
its	O
abilities	O
to	O
direct	O
visual	O
information	O
to	O
parts	O
of	O
the	O
retina	O
that	O
function	O
well	O
.	O
</s>
<s>
As	O
well	O
,	O
Eyetap	B-General_Concept
's	O
role	O
in	O
sousveillance	O
has	O
been	O
explored	O
by	O
Mann	O
,	O
Jason	O
Nolan	O
and	O
Barry	O
Wellman	O
.	O
</s>
<s>
The	O
EyeTap	B-General_Concept
has	O
applications	O
in	O
the	O
world	O
of	O
cyborg	O
logging	O
,	O
as	O
it	O
allows	O
the	O
user	O
the	O
ability	O
to	O
perform	O
real-time	O
visual	O
capture	O
of	O
their	O
daily	O
lives	O
from	O
their	O
own	O
point	O
of	O
view	O
.	O
</s>
<s>
In	O
this	O
way	O
,	O
the	O
EyeTap	B-General_Concept
could	O
be	O
used	O
to	O
create	O
a	O
lifelong	O
cyborg	O
log	O
or	O
“	O
glog	O
”	O
of	O
the	O
user	O
's	O
life	O
and	O
the	O
events	O
they	O
participate	O
in	O
,	O
potentially	O
recording	O
enough	O
media	O
to	O
allow	O
producers	O
centuries	O
in	O
the	O
future	O
to	O
present	O
the	O
user	O
's	O
life	O
as	O
interactive	O
entertainment	O
(	O
or	O
historical	O
education	O
)	O
to	O
consumers	O
of	O
that	O
era	O
.	O
</s>
<s>
Steve	O
Mann	O
created	O
the	O
first	O
version	O
of	O
the	O
EyeTap	B-General_Concept
,	O
which	O
consisted	O
of	O
a	O
computer	O
in	O
a	O
backpack	O
wired	O
up	O
to	O
a	O
camera	O
and	O
its	O
viewfinder	O
which	O
in	O
turn	O
was	O
rigged	O
to	O
a	O
helmet	O
.	O
</s>
<s>
Ever	O
since	O
this	O
first	O
version	O
,	O
it	O
has	O
gone	O
through	O
multiple	O
models	O
as	O
wearable	B-Operating_System
computing	I-Operating_System
evolves	O
,	O
allowing	O
the	O
EyeTap	B-General_Concept
to	O
shrink	O
down	O
to	O
a	O
smaller	O
and	O
less	O
weighty	O
version	O
.	O
</s>
<s>
Currently	O
the	O
EyeTap	B-General_Concept
consists	O
of	O
the	O
eyepiece	O
used	O
to	O
display	O
the	O
images	O
,	O
the	O
keypad	O
which	O
the	O
user	O
can	O
use	O
to	O
interface	O
with	O
the	O
EyeTap	B-General_Concept
and	O
have	O
it	O
perform	O
the	O
desired	O
tasks	O
,	O
a	O
CPU	B-General_Concept
which	O
can	O
be	O
attached	O
to	O
most	O
articles	O
of	O
clothing	O
and	O
in	O
some	O
cases	O
even	O
a	O
Wi-Fi	O
device	O
so	O
the	O
user	O
can	O
access	O
the	O
Internet	O
and	O
online	O
data	O
.	O
</s>
<s>
The	O
EyeTap	B-General_Concept
is	O
essentially	O
a	O
half-silvered	O
mirror	O
in	O
front	O
of	O
the	O
user	O
's	O
eye	O
,	O
reflecting	O
some	O
of	O
the	O
light	O
into	O
a	O
sensor	O
.	O
</s>
<s>
In	O
these	O
cases	O
,	O
the	O
EyeTap	B-General_Concept
views	O
infrared	O
light	O
,	O
as	O
well	O
as	O
the	O
overall	O
design	O
schematic	O
of	O
how	O
the	O
EyeTap	B-General_Concept
manipulates	O
lightrays	O
.	O
</s>
<s>
A	O
conceptual	O
diagram	O
of	O
an	O
EyeTap	B-General_Concept
:	O
</s>
<s>
CCD	B-Algorithm
Cameras	I-Algorithm
(	O
Charge-coupled	B-Algorithm
device	I-Algorithm
)	O
are	O
the	O
most	O
common	O
type	O
of	O
digital	B-Device
camera	I-Device
used	O
today	O
.	O
</s>
