<s>
OpenNI	B-Application
or	O
Open	O
Natural	O
Interaction	O
is	O
an	O
industry-led	O
non-profit	O
organization	O
and	O
open	B-Application
source	I-Application
software	I-Application
project	O
focused	O
on	O
certifying	O
and	O
improving	O
interoperability	O
of	O
natural	B-Application
user	I-Application
interfaces	I-Application
and	O
organic	B-Device
user	I-Device
interfaces	I-Device
for	O
Natural	O
Interaction	O
(	O
NI	O
)	O
devices	O
,	O
applications	O
that	O
use	O
those	O
devices	O
and	O
middleware	B-General_Concept
that	O
facilitates	O
access	O
and	O
use	O
of	O
such	O
devices	O
.	O
</s>
<s>
PrimeSense	O
,	O
who	O
was	O
founding	O
member	O
of	O
OpenNI	B-Application
,	O
shutdown	O
the	O
original	O
OpenNI	B-Application
project	O
when	O
it	O
was	O
acquired	O
by	O
Apple	O
on	O
November	O
24	O
,	O
2013	O
;	O
since	O
then	O
Occipital	O
and	O
other	O
former	O
partners	O
of	O
PrimeSense	O
are	O
still	O
keeping	O
a	O
forked	O
version	O
of	O
OpenNI	B-Application
2	O
(	O
OpenNI	B-Application
version	O
2	O
)	O
active	O
as	O
an	O
open	B-Application
source	I-Application
software	I-Application
,	O
primary	O
for	O
their	O
own	O
Structure	O
SDK	O
(	O
Software	B-Application
Development	I-Application
Kit	I-Application
)	O
which	O
is	O
used	O
by	O
their	O
Structure	O
Product	O
.	O
</s>
<s>
One	O
of	O
the	O
main	O
members	O
was	O
PrimeSense	O
,	O
the	O
company	O
behind	O
the	O
technology	O
used	O
in	O
the	O
Kinect	B-Algorithm
,	O
a	O
motion	O
sensing	O
input	B-Device
device	I-Device
by	O
Microsoft	O
for	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
video	B-Device
game	I-Device
console	I-Device
.	O
</s>
<s>
In	O
December	O
2010	O
,	O
PrimeSense	O
,	O
whose	O
depth	O
sensing	O
reference	O
design	O
Kinect	B-Algorithm
is	O
based	O
on	O
,	O
released	O
their	O
own	O
open	O
source	O
drivers	O
along	O
with	O
motion	O
tracking	O
middleware	B-General_Concept
called	O
NITE	O
.	O
</s>
<s>
PrimeSense	O
later	O
announced	O
that	O
it	O
had	O
teamed	O
up	O
with	O
Asus	O
to	O
develop	O
a	O
PC-compatible	O
device	O
similar	O
to	O
Kinect	B-Algorithm
,	O
which	O
would	O
be	O
called	O
Wavi	O
Xtion	O
and	O
was	O
scheduled	O
for	O
release	O
in	O
the	O
second	O
quarter	O
of	O
2012	O
.	O
</s>
<s>
Their	O
software	O
is	O
currently	O
being	O
used	O
in	O
a	O
variety	O
of	O
open-source	B-Application
projects	O
among	O
academia	O
and	O
the	O
hobbyist	O
community	O
.	O
</s>
<s>
Recently	O
,	O
software	O
companies	O
have	O
attempted	O
to	O
expand	O
OpenNI	B-Application
's	O
influence	O
by	O
making	O
working	O
with	O
and	O
integrating	O
the	O
technology	O
dramatically	O
simpler	O
.	O
</s>
<s>
After	O
the	O
acquisition	O
of	O
PrimeSense	O
by	O
Apple	O
,	O
it	O
was	O
announced	O
that	O
the	O
website	O
OpenNI.org	O
would	O
be	O
shut	O
down	O
on	O
April	O
23	O
,	O
2014	O
.	O
</s>
<s>
Immediately	O
after	O
the	O
shutdown	O
,	O
organizations	O
that	O
used	O
OpenNI	B-Application
subsequently	O
preserved	O
documentation	O
and	O
binaries	O
for	O
future	O
use	O
.	O
</s>
<s>
Today	O
,	O
Occipital	O
and	O
other	O
former	O
partners	O
of	O
PrimeSense	O
is	O
still	O
keeping	O
a	O
forked	O
version	O
of	O
OpenNI	B-Application
2	O
(	O
OpenNI	B-Application
version	O
2	O
)	O
active	O
as	O
an	O
open	B-Application
source	I-Application
software	I-Application
for	O
their	O
Structure	O
SDK	O
for	O
their	O
Structure	O
Product	O
.	O
</s>
<s>
Natural	O
Interaction	O
Devices	O
or	O
Natural	O
Interfaces	O
are	O
devices	O
that	O
capture	O
body	O
movements	O
and	O
sounds	O
to	O
allow	O
for	O
a	O
more	O
natural	O
interaction	O
of	O
users	O
with	O
computers	O
in	O
the	O
context	O
of	O
a	O
Natural	B-Application
user	I-Application
interface	I-Application
.	O
</s>
<s>
The	O
Kinect	B-Algorithm
and	O
Wavi	O
X-tion	O
are	O
examples	O
of	O
such	O
devices	O
.	O
</s>
<s>
The	O
OpenNI	B-Application
framework	O
provides	O
a	O
set	O
of	O
open	O
source	O
APIs	B-General_Concept
.	O
</s>
<s>
These	O
APIs	B-General_Concept
are	O
intended	O
to	O
become	O
a	O
standard	O
for	O
applications	O
to	O
access	O
natural	O
interaction	O
devices	O
.	O
</s>
<s>
The	O
API	B-General_Concept
framework	O
itself	O
is	O
also	O
sometimes	O
referred	O
to	O
by	O
the	O
name	O
OpenNI	B-Application
SDK	O
.	O
</s>
