Internationa
QUALITY CONTRO
KEY WORDS: Photo
ABSTRACT
The major factors a
position of the lase
accuracy model is re
(DEMs) derived fron
however it is not su
large elevation erro
within the footprint
factors, such as the
accuracy. We first |
terrain. The analys
aerial photographs
surface points fron
photographs. The c
the laser points witl
better way to comp
and 3-D lines obtaii
Airborne laser rang
and dense samplin
in an ever increasit
employed for ice s
forested areas, and
tions, for example i
The information tha
tion, e.g. a DTM inc
city model, is not ex
set; rather, it must
well features can be
is a quality control
There is no redund
puting the 3-D pc
Hence, no explicit «
we rely on the assur
points are good. Ar
is its random distri
aries. It would be
hit the boundary o
had we would not
information about «
We present a third :
general quality con
ing data and derive
imagery and laser 1
agery is immediatel
analysis and interpr
for the laser data fc
tem that would res