<s>
In	O
morphometrics	O
,	O
landmark	B-General_Concept
point	I-General_Concept
or	O
shortly	O
landmark	O
is	O
a	O
point	O
in	O
a	O
shape	O
object	O
in	O
which	O
correspondences	O
between	O
and	O
within	O
the	O
populations	O
of	O
the	O
object	O
are	O
preserved	O
.	O
</s>
<s>
In	O
other	O
disciplines	O
,	O
landmarks	O
may	O
be	O
known	O
as	O
vertices	O
,	O
anchor	O
points	O
,	O
control	O
points	O
,	O
sites	O
,	O
profile	O
points	O
,	O
'	O
sampling	O
 '	O
points	O
,	O
nodes	O
,	O
markers	O
,	O
fiducial	B-Architecture
markers	I-Architecture
,	O
etc	O
.	O
</s>
<s>
Landmarks	O
can	O
be	O
defined	O
either	O
manually	O
by	O
experts	O
or	O
automatically	O
by	O
a	O
computer	B-Application
program	I-Application
.	O
</s>
<s>
A	O
computer	B-Application
program	I-Application
usually	O
determines	O
mathematical	O
landmarks	O
used	O
for	O
an	O
automatic	O
pattern	O
recognition	O
.	O
</s>
