Itour-
)Cess,
ind if
cause
? two
e the
> two
case,
area.
ge of
M
itized
ea of
near
eters.
ts are
of the
ugh a
plays
^ the
more
lation
f flat
gical
ining
| new
Ocess
te to
DTM
in the
DTM
to be
in a
ized
lution
then
gibile
e key
imply
road
that
must
ed on
ed as
ed to
to be
of the
s the
f the
] and
Figure 4: Testing results. (A) Top left: Original contour map. (B) Top right: Original DTM obtained from the original
contour map. (C) Middle left: Contour map derived from the improved DTM. (D) Middle right: The improved DTM. (E)
Bottom left: Contour map derived from the original DTM. (F) Bottom right: The improved DTM superimposed with the
introduced “skeleton” Lines.
653
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B4. Vienna 1996