<s>
Deep	B-Operating_System
Zoom	I-Operating_System
is	O
a	O
technology	O
developed	O
by	O
Microsoft	O
for	O
efficiently	O
transmitting	O
and	O
viewing	O
images	O
.	O
</s>
<s>
The	O
Deep	B-Operating_System
Zoom	I-Operating_System
file	O
format	O
is	O
very	O
similar	O
to	O
the	O
Google	B-Application
Maps	I-Application
image	O
format	O
where	O
images	O
are	O
broken	O
into	O
tiles	O
and	O
then	O
displayed	O
as	O
required	O
.	O
</s>
<s>
The	O
main	O
difference	O
is	O
that	O
with	O
Google	B-Application
Maps	I-Application
the	O
actual	O
details	O
on	O
the	O
image	O
change	O
from	O
one	O
zoom	O
level	O
to	O
another	O
,	O
while	O
with	O
Deep	B-Operating_System
Zoom	I-Operating_System
the	O
same	O
image	O
is	O
displayed	O
at	O
each	O
zoom	O
level	O
.	O
</s>
<s>
Seadragon	B-Operating_System
Software	I-Operating_System
,	O
formerly	O
Sand	O
Codex	O
,	O
first	O
created	O
the	O
Seadragon	O
technology	O
and	O
its	O
implementation	O
of	O
what	O
is	O
now	O
called	O
Deep	B-Operating_System
Zoom	I-Operating_System
.	O
</s>
<s>
This	O
technology	O
was	O
then	O
absorbed	O
into	O
the	O
Microsoft	O
Live	O
Labs	O
when	O
Seadragon	B-Operating_System
Software	I-Operating_System
was	O
acquired	O
.	O
</s>
<s>
Engineers	O
from	O
Seadragon	O
now	O
work	O
with	O
Microsoft	O
to	O
integrate	O
their	O
work	O
into	O
technology	O
such	O
as	O
Silverlight	B-Application
and	O
Photosynth	B-Application
.	O
</s>
<s>
The	O
most	O
famous	O
implementation	O
of	O
Deep	B-Operating_System
Zoom	I-Operating_System
was	O
probably	O
the	O
first	O
:	O
the	O
memorabilia	O
collection	O
at	O
the	O
.	O
</s>
<s>
In	O
2010	O
,	O
Microsoft	O
Live	O
Labs	O
partnered	O
with	O
the	O
University	O
of	O
California	O
,	O
Berkeley	O
to	O
create	O
ChronoZoom	B-Application
,	O
a	O
DeepZoom-powered	O
time	O
visualization	O
tool	O
that	O
pushed	O
the	O
limits	O
of	O
DeepZoom	B-Operating_System
,	O
since	O
it	O
required	O
zooming	O
from	O
the	O
scale	O
of	O
13	O
billion	O
years	O
down	O
to	O
a	O
single	O
day	O
.	O
</s>
<s>
It	O
is	O
described	O
by	O
as	O
"	O
a	O
community	O
project	O
focused	O
on	O
creating	O
a	O
rich	O
interactive	O
mapping	O
control	O
using	O
Silverlight2	O
Deep	B-Operating_System
Zoom	I-Operating_System
.	O
</s>
<s>
(	O
Using	O
Deep	B-Operating_System
Zoom	I-Operating_System
Composer	O
)	O
.	O
</s>
<s>
Blaise	O
Aguera	O
y	O
Arcas	O
gave	O
a	O
demonstration	O
of	O
Seadragon	O
and	O
Photosynth	B-Application
at	O
the	O
2007	O
TED	O
conference	O
.	O
</s>
<s>
In	O
November	O
2009	O
,	O
352	O
Media	O
Group	O
,	O
a	O
Silverlight	B-Application
developer	O
in	O
the	O
Microsoft	B-Application
Silverlight	I-Application
Partner	O
Program	O
,	O
created	O
an	O
example	O
of	O
Deep	B-Operating_System
Zoom	I-Operating_System
using	O
Microsoft	B-Application
Silverlight	I-Application
version	O
3	O
.	O
</s>
<s>
The	O
mosaic	O
,	O
created	O
by	O
Silverlight	B-Application
developers	O
,	O
features	O
as	O
both	O
an	O
online	O
interactive	O
deep	B-Operating_System
zoom	I-Operating_System
and	O
a	O
standalone	O
deep	B-Operating_System
zoom	I-Operating_System
which	O
forms	O
part	O
of	O
the	O
Churchill	O
exhibit	O
in	O
the	O
Churchill	O
War	O
Rooms	O
in	O
Whitehall	O
.	O
</s>
<s>
The	O
file	O
format	O
used	O
by	O
Deep	B-Operating_System
Zoom	I-Operating_System
(	O
as	O
well	O
as	O
Photosynth	B-Application
and	O
Seadragon	O
Ajax	O
)	O
is	O
XML	O
based	O
.	O
</s>
<s>
Users	O
can	O
specify	O
a	O
single	O
large	O
image	O
(	O
dzi	O
)	O
or	O
a	O
collection	O
of	O
images	O
(	O
dzc	B-Operating_System
)	O
.	O
</s>
<s>
Though	O
used	O
in	O
the	O
proprietary	B-Application
Deep	B-Operating_System
Zoom	I-Operating_System
,	O
the	O
dzi	O
format	O
is	O
open	O
and	O
able	O
to	O
be	O
used	O
by	O
anyone	O
.	O
</s>
<s>
A	O
DZC	B-Operating_System
is	O
a	O
collection	O
of	O
some	O
number	O
of	O
DZIs	O
linked	O
and	O
referenced	O
by	O
a	O
DZC	B-Operating_System
file	O
(	O
with	O
either	O
a	O
.dzc	O
or	O
.xml	O
extension	O
)	O
.	O
</s>
<s>
At	O
a	O
high	O
level	O
,	O
a	O
collection	O
is	O
a	O
number	O
of	O
image	O
thumbnails	O
whose	O
location	O
is	O
kept	O
track	O
of	O
by	O
the	O
.dzc/.xml	O
file	O
,	O
when	O
zooming	O
into	O
an	O
image	O
,	O
it	O
accesses	O
greater	O
resolutions	O
tiles	O
.	O
</s>
<s>
A	O
DZC	B-Operating_System
's	O
structure	O
is	O
similar	O
to	O
that	O
of	O
a	O
DZI	O
;	O
the	O
.dzc/.xml	O
file	O
defines	O
the	O
collection	O
and	O
the	O
subdirectory	O
of	O
folders	O
maps	O
to	O
the	O
DZI	O
file	O
structure	O
,	O
each	O
with	O
their	O
set	O
of	O
.dzi/.xml	O
and	O
image	O
tiles	O
.	O
</s>
<s>
The	O
DZC	B-Operating_System
is	O
used	O
in	O
Microsoft	O
's	O
Pivot	O
,	O
but	O
not	O
in	O
SeaDragon	O
per	O
se	O
.	O
</s>
<s>
A	O
sparse	O
image	O
is	O
normally	O
a	O
number	O
of	O
separate	O
photographs	O
with	O
varying	O
resolution	O
levels	O
that	O
have	O
been	O
placed	O
in	O
a	O
single	O
DZI	O
instead	O
of	O
a	O
DZC	B-Operating_System
.	O
</s>
<s>
Microsoft	O
Live	O
Labs	O
has	O
created	O
an	O
application	O
for	O
the	O
App	B-Application
Store	I-Application
called	O
Seadragon	O
Mobile	O
.	O
</s>
<s>
It	O
is	O
run	O
over	O
the	O
internet	O
and	O
includes	O
Deep	B-Operating_System
Zoom	I-Operating_System
on	O
the	O
following	O
categories	O
;	O
art	O
,	O
history	O
,	O
maps	O
,	O
photos	O
,	O
Photosynth	B-Application
which	O
anybody	O
can	O
upload	O
to	O
,	O
space	O
and	O
technology	O
&	O
web	O
.	O
</s>
