‚ CA, 9-11 Nov. 1999
es and laser points.
' the merged data. Constrained
the use of the breaklines. The
shown in Figure 5. Comparing
surface provides a better
ian the surface generated using
int only define the rooflines. To
ngs, the roofline is projected on
S à breakline, thus defining the
to the roofs. The result of this
ice utilizing both the breaklines
the buildings than either of the
e data acquisition method, and
line to the ground surface is
buildings.
nent of a general scheme for the
rammetric data. This scheme
face registration algorithm and a
ing of the integration algorithm
over Ocean City, MD, and has
ccurately represented than when
s paper is applicable to the
ible surface models for the
n urban areas. The use of the
discontinuities will allow the
t does not have the distortions
in the surface models which are
d DEMs. Continued research is
ition of the approach, to extract
determine the ground height in
supported by the United States-
ion, grant no. 97-00433.
4690 4700 4710 A720 ——
International Archives of Photogrammetry and Remote Sensing, Vol. 32, Part 3W14, La Jolla, CA, 9-11 Nov. 1999
Figure 4. Surface from laser data.
1980" >.
T. mE
1970 et A660.
1960
Figure 5. New surface using breaklines and laser data.
Figure 6. Incorporation of vertical projection of roofline to ground surface.
2000 à vue
1990 = Es
com 4680
1970 > 7 4660
1960
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Ackermann, F., 1999. Airborne laser scanning — present status
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Axelsson, P., 1998. Integrated sensors for platform orientation
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Axelsson, P., 1999. Processing of laser scanner data - algorithms
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Baltsavias, E., 1999. A comparison between photogrammetry and
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