<s>
An	O
armature	B-Algorithm
is	O
the	O
name	O
of	O
the	O
kinematic	B-Application
chains	I-Application
used	O
in	O
computer	O
animation	O
to	O
simulate	O
the	O
motions	O
of	O
virtual	O
human	O
or	O
animal	O
characters	O
.	O
</s>
<s>
In	O
the	O
context	O
of	O
animation	O
,	O
the	O
inverse	B-General_Concept
kinematics	I-General_Concept
of	O
the	O
armature	B-Algorithm
is	O
the	O
most	O
relevant	O
computational	O
algorithm	O
.	O
</s>
<s>
There	O
are	O
two	O
types	O
of	O
digital	O
armatures	B-Algorithm
:	O
Keyframing	O
(	O
stop-motion	O
)	O
armatures	B-Algorithm
and	O
real-time	O
(	O
puppeteering	O
)	O
armatures	B-Algorithm
.	O
</s>
<s>
Keyframing	O
armatures	B-Algorithm
were	O
initially	O
developed	O
to	O
assist	O
in	O
animating	O
digital	O
characters	O
without	O
basing	O
the	O
movement	O
on	O
a	O
live	O
performance	O
.	O
</s>
<s>
The	O
animator	O
poses	O
a	O
device	O
manually	O
for	O
each	O
keyframe	O
,	O
while	O
the	O
character	O
in	O
the	O
animation	O
is	O
set	O
up	O
with	O
a	O
mechanical	O
structure	O
equivalent	O
to	O
the	O
armature	B-Algorithm
.	O
</s>
<s>
Real-time	O
armatures	B-Algorithm
are	O
similar	O
,	O
but	O
they	O
are	O
puppeteered	O
by	O
one	O
or	O
more	O
people	O
and	O
captured	O
in	O
real-time	O
.	O
</s>
