<s>
Studierfenster	B-Language
or	O
StudierFenster	B-Language
(	O
SF	O
)	O
is	O
a	O
free	O
,	O
non-commercial	O
open	O
science	O
client/server	O
-based	O
medical	B-Application
imaging	I-Application
processing	O
online	O
framework	O
.	O
</s>
<s>
in	O
two	O
-	O
and	O
three-dimensional	O
space	O
directly	O
in	O
standard	O
web	B-Application
browsers	I-Application
,	O
like	O
Google	O
Chrome	O
,	O
Mozilla	O
Firefox	O
,	O
Safari	O
,	O
and	O
Microsoft	O
Edge	O
.	O
</s>
<s>
Other	O
functionalities	O
are	O
the	O
calculation	O
of	O
medical	O
metrics	O
(	O
dice	O
score	O
and	O
Hausdorff	O
distance	O
)	O
,	O
manual	O
slice-by-slice	O
outlining	O
of	O
structures	O
in	O
medical	B-Application
images	I-Application
(	O
segmentation	B-Algorithm
)	O
,	O
manual	O
placing	O
of	O
(	O
anatomical	O
)	O
landmarks	O
in	O
medical	B-Application
image	I-Application
data	O
,	O
viewing	O
medical	O
data	O
in	O
virtual	B-Application
reality	I-Application
,	O
a	O
facial	O
reconstruction	O
and	O
registration	O
of	O
medical	O
data	O
for	O
augmented	B-General_Concept
reality	I-General_Concept
,	O
one	O
click	O
showcases	O
for	O
COVID-19	O
and	O
veterinary	O
scans	O
,	O
and	O
a	O
Radiomics	O
module	O
.	O
</s>
<s>
Other	O
features	O
of	O
Studierfenster	B-Language
are	O
the	O
automatic	O
cranial	O
implant	O
design	O
with	O
a	O
neural	B-Architecture
network	I-Architecture
,	O
the	O
inpainting	O
of	O
aortic	O
dissections	O
with	O
a	O
generative	B-Algorithm
adversarial	I-Algorithm
network	I-Algorithm
,	O
an	O
automatic	O
aortic	O
landmark	O
detection	O
with	O
deep	B-Algorithm
learning	I-Algorithm
in	O
computed	O
tomography	O
angiography	O
scans	O
,	O
and	O
a	O
GrowCut	O
algorithm	O
implementation	O
for	O
segmentation	B-Algorithm
.	O
</s>
<s>
Studierfenster	B-Language
is	O
currently	O
hosted	O
on	O
an	O
server	O
at	O
the	O
Graz	O
University	O
of	O
Technology	O
in	O
Austria	O
,	O
and	O
expanded	O
jointly	O
with	O
the	O
Institute	O
for	O
Artificial	O
Intelligence	O
in	O
Medicine	O
(	O
IKIM	O
)	O
in	O
Essen	O
,	O
Germany	O
.	O
</s>
<s>
Studierfenster	B-Language
was	O
initiated	O
within	O
two	O
bachelor	O
theses	O
during	O
the	O
summer	O
bachelor	O
program	O
of	O
the	O
Institute	O
of	O
Computer	O
Graphics	O
and	O
Vision	O
(	O
ICG	O
)	O
at	O
Graz	O
University	O
of	O
Technology	O
,	O
Austria	O
,	O
in	O
cooperation	O
with	O
the	O
Medical	O
University	O
of	O
Graz	O
,	O
Austria	O
,	O
in	O
2018/2019	O
.	O
</s>
<s>
The	O
name	O
Studierfenster	B-Language
(	O
or	O
StudierFenster	B-Language
)	O
is	O
German	O
and	O
can	O
be	O
translated	O
to	O
'	O
StudyWindow	O
 '	O
,	O
whereby	O
window	O
refers	O
here	O
to	O
a	O
browser	B-Application
window	O
.	O
</s>
<s>
The	O
word	O
Studierfenster	B-Language
is	O
an	O
adaption	O
from	O
the	O
word	O
( 	O
 '	O
study	O
room	O
 '	O
)	O
,	O
which	O
was	O
an	O
augmented	B-General_Concept
reality	I-General_Concept
project	O
at	O
the	O
Vienna	O
University	O
of	O
Technology	O
in	O
Austria	O
.	O
</s>
<s>
Studierfenster	B-Language
is	O
set	O
up	O
as	O
a	O
distributed	O
application	O
via	O
a	O
client	O
–	O
server	O
model	O
.	O
</s>
<s>
The	O
client	O
side	O
(	O
front-end	O
)	O
consists	O
of	O
HTML	B-Language
and	O
JavaScript	B-Language
with	O
WebGL	B-Library
to	O
enable	O
2D	O
and	O
3D	O
visualization	O
,	O
rendered	O
on	O
the	O
client	O
.	O
</s>
<s>
The	O
server	O
side	O
(	O
back-end	O
)	O
handles	O
client	O
requests	O
via	O
C	B-Language
,	O
C++	B-Language
and	O
Python	B-Language
.	O
</s>
<s>
It	O
interfaces	O
to	O
common	O
open	O
source	O
libraries	O
and	O
software	O
tools	O
like	O
the	O
Insight	O
Toolkit	O
,	O
the	O
Visualization	O
Toolkit	O
(	O
VTK	B-Language
)	O
,	O
the	O
X	O
Toolkit	O
(	O
XTK	O
)	O
and	O
Slice:Drop	O
.	O
</s>
<s>
Studierfenster	B-Language
employs	O
a	O
Flask	B-Language
server	O
.	O
</s>
<s>
This	O
allows	O
client-side	O
parsing	O
a	O
local	O
folder	O
with	O
DICOM	B-Algorithm
(	O
Digital	B-Algorithm
Imaging	I-Algorithm
and	I-Algorithm
Communications	I-Algorithm
in	I-Algorithm
Medicine	I-Algorithm
)	O
files	O
.	O
</s>
<s>
Afterwards	O
,	O
the	O
whole	O
folder	O
can	O
be	O
converted	O
to	O
compressed	O
(	O
nearly	O
raw	O
raster	B-Algorithm
data	O
)	O
files	O
and	O
downloaded	O
as	O
a	O
single	O
file	O
.	O
</s>
<s>
Nrrd	O
is	O
a	O
library	O
and	O
file	O
format	O
for	O
the	O
representation	O
and	O
processing	O
of	O
n-dimensional	O
raster	B-Algorithm
data	O
.	O
</s>
<s>
It	O
is	O
intended	O
to	O
support	O
scientific	B-Application
visualization	I-Application
and	O
(	O
medical	O
)	O
image	B-Algorithm
processing	I-Algorithm
applications	O
.	O
</s>
<s>
With	O
the	O
"	O
Dicom	B-Algorithm
Browser	B-Application
"	O
of	O
Studierfenster	B-Language
,	O
it	O
is	O
possible	O
to	O
select	O
specific	O
Studies	O
or	O
Series	O
,	O
and	O
only	O
convert	O
these	O
.	O
</s>
<s>
After	O
the	O
conversion	O
,	O
the	O
compressed	O
file	O
can	O
be	O
downloaded	O
and	O
used	O
with	O
the	O
"	O
Medical	O
3D	O
Viewer	O
"	O
for	O
2D	O
and	O
3D	O
visualization	O
,	O
and	O
further	O
image	B-Algorithm
processing	I-Algorithm
.	O
</s>
<s>
This	O
can	O
calculate	O
the	O
Dice	O
similarity	O
coefficient	O
and	O
Hausdorff	O
distance	O
between	O
two	O
segmentation	B-Algorithm
masks	O
(	O
in	O
format	O
)	O
in	O
a	O
standard	O
web	B-Application
browser	I-Application
.	O
</s>
<s>
The	O
VR	O
Viewer	O
(	O
or	O
Medical	O
VR	O
Viewer	O
)	O
enables	O
viewing	O
(	O
medical	O
)	O
data	O
in	O
Virtual	B-Application
Reality	I-Application
(	O
VR	O
)	O
with	O
devices	O
like	O
the	O
Google	O
Cardboard	O
or	O
the	O
HTC	O
Vive	O
(	O
via	O
the	O
WebVR	O
App	O
)	O
.	O
</s>
<s>
Studierfenster	B-Language
is	O
not	O
a	O
certified	O
medical	O
product	O
;	O
it	O
can	O
only	O
be	O
used	O
for	O
educational	O
,	O
research	O
,	O
and	O
informational	O
purposes	O
.	O
</s>
