bul 2004
GIS - goes aerial for RS-data acquisition
Frantisek Pivnicka', Gerhard Kemper
1) Frantisek Pinicka, CZ-15000 Praha 5, TopoL-Software, pivnicka@topol.cz
2) GGS, Kümmererstr.14, D-67346, GGS , kemper@ggs-spever.de
KEY WORDS: Avionic, flight-management, aerial imaging, airborne scanning, INS, GPS, Photogrammetry, Planning, Controlling
ABSTRACT: Powerful modern GIS-components support real-time access to navigation-data in airplanes. This enables to develop
sufficient applications for planning and guiding very different projects. GIS components based on the OGC-standard have access to
many other pre- or post-processing tools as well as to photogrammetric workstations. Access to technical stuff goes both ways, one to
GPS and/or INS as input, managing cameras, emitters or scanners on the output-side. One system has been developed for aerial
imaging. Tools for the planning can use different raster and vector data of different format and coordinate systems. The flight
management consists of a Windows-Cockpit PC including INS-GPS instruments, components to control the camera and its heading-
correction and the application with rebuilt flight instruments for the pilots navigation. Still in the air, the done job can be observed
and analysed for additional work. Similar application was made for scanner-flights even with access to the scanner and its INS
system. This works with Laser-Scanners as well as with MS-Scanners or geophysical sensors. Also here the immediate control of the
done work is extremely useful. A third application was done for emitting of materials, f.e. fertilisers. RS-Data, already interpreted
and vectorised, can be used for this aerial job perfectly. Other applications, f.e. for controlling of electric power-lines or pipelines are
under construction. The variety of such a system is big, especially for remote sensing and photogrammetry. New software
components combined with modern PC-technology and other sensors, open a wide field for further applications, which more less
easily can be adapted. It is the first time, GIS really goes aerial for the RS-operations.
INTRODUCTION:
There exists a real need, to have a GIS based application for
aeronautics and avionic, mostly for planning and managing
aerial photographs and also for scanning operations. GIS
enable the access to a huge number of tools which can be
used for the planning and also the navigation and controlling
part of the system. Easily the data can be imported or
exported to other systems and data-exchange can be done
form and to very different platforms. Such a solution is
embed into the geo-data-world and not a single solution.
Most of the existing applications are made for such a specific
purpose, the flexibility is small in that case. They are limited
in the connection to sensors and also in the data-exchange.
Existing technologies seldom allow to monitor the done work
in real time. Rapid updating of sensor data have to take place
and the use of the software application has to be made for
cockpit environment.
The newly developed system aims to helps companies and
the pilots to undertake effective campaigns in aerial
photography or scanning operations (f.e.laser scanning). The
system is based on software and hardware components
including GPS, INS, cockpit-PC, GIS-application and real-
time navigation with control-functions. Also a stabilized
mount can be used to reduce rotation of camera axes.
APPLICATION FOR AERIAL IMAGING — PREPLANNING
Based on TopoL NT technology a tool for preplanning flight
campaigns for taking aerial images with analogue or digital
cameras has been created. The system supports both, raster-
and vector-data and has the possibility to geofererence them
by different linear and non-linear transformations. As a
specific function, different geocoded data (f.e. Gauss-Krüger,
Krassovskii...) can be combined into a new geodata-window
with the target-coordinate system for the later
flight- campaign (Le. WGS84-UTM). Rasters
like TIF, JPG, BMP, CIT, SID... and vectordata
like DGN, Block, DXF, Shapefile... can be
used. A wizard guides through all settings and
procedures. We can chose between single
projects for areas, river projects with buffer and
combined areas and meta-projects for a
combination of several areas and rivers. First
the boundary has to be selected, imported or
created and the project area can be defined.
Next step is the definition of the flight- axe
-[8] xj
(track), either automatically by searching the
longest line inside the area or manually. The
IC'Rotocfluglphotol. xmi vers A INT T
| 4,491,847,30 : 5,600.214,11 | 1:19,745 Ganz Deu, BESS.
distat] + MSN Messenger | erosort Word | j- TopoL
90672 5595667 | 1550 "€ ^r ar: ^feprc 11e ano « 3 C17P
UU Um camera parameters (focus length and film size)
EM ECO Jies0 | have to be defined or can be taken out of a
CME FE calibration-protocol. A box for the technical
4491192 15599482 | 1550 . . ~
Come Ne settings enable the selection of the overlaps
RENE between strips and photos, the flight-altitude,
the scale, the scanning accuracy.
Figure 1: AeroTopoL Photoplan — application
for planning of aerial photo missions
