<s>
Elastic	B-Algorithm
matching	I-Algorithm
is	O
one	O
of	O
the	O
pattern	O
recognition	O
techniques	O
in	O
computer	B-General_Concept
science	I-General_Concept
.	O
</s>
<s>
Elastic	B-Algorithm
matching	I-Algorithm
(	O
EM	O
)	O
is	O
also	O
known	O
as	O
deformable	O
template	O
,	O
flexible	O
matching	O
,	O
or	O
nonlinear	O
template	O
matching	O
.	O
</s>
<s>
Elastic	B-Algorithm
matching	I-Algorithm
can	O
be	O
defined	O
as	O
an	O
optimization	O
problem	O
of	O
two-dimensional	O
warping	O
specifying	O
corresponding	O
pixels	B-Algorithm
between	O
subjected	O
images	O
.	O
</s>
