International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B3. Istanbul 2004
been demonstrated that existing vector data can be easily
imported, updated and stored as well as attribute values added
in the requested ways.
The basic 3D building extraction kernel in inJECT has been
extended by adding feature attributes to the geometrical features.
The possibility to measure roads and parcels with a high level of
automation has substantially increased the applicability for a
wide range of users. The automated 2D extraction modules used
for that purpose have been tested with several types of satellite
imagery with a ground pixel size of 0.8 to 5 m as well as aerial
orthophotos of about 0.5 m ground resolution. The operator is
well supported during the measuring phase. In the case of the
road tracker, a traffic light approach is used as guidance.
The concept of semi-automation has shown to be excellent for
practical applications, as there is always an editing option, if
some automation fails due to low image quality, disturbancies
and other effects. Since there is no need for stereo viewing in 2D
and even in 3D extraction, the system is also more open to
professionals outside the photogrammetric world, who have
here an easy-to-learn tool at hand to carry out basic feature
extraction tasks with high accuracy and reliability.
REFERENCES
Baltsavias, E., Griin, A., Gool, Luc van. (Eds), 2001. In:
Proceedings Third International Workshop on Automatic
Extraction of Man-Made Objects from Aerial and Space Images,
Ascona, Switzerland, 10-15 June 2001. Swets&Zeitlinger
Publishers/Balkema, The Netherlands.
CyberCity AG, 2004. http://www.cybercity.tv.
Feldman, S., Curtis, E., 2003. GI data sharing for e-Government:
Using GML to make the vision a reality. In: The agi conference
at GeoSolutions 2003, London.
Fischler, M.A., Tenenbaum, J.M, and Wolf, H.C., 1981.
Detection of Roads and Linear Structures in Low-Resolution
Aerial Imagery Using a Multisource Knowledge Integration
Technique. Computer Graphics and Image processing, 15, pp.
201-223.
Groch, W.-D., 1982. Extraction of Line-Shaped Objects from
Aerial Images Using a Special Operator to Analyze the Profiles
of Functions. Computer Graphics and Image Processing, 18,
pp. 347-358.
Grün, A., Li, H., 1997. Semi-Automatic Linear Feature
Extraction by Dynamic Programming and LSB-Snakes.
Photogrammetric Engineering & Remote Sensing, 63(8), pp.
985-995.
Giilch, E., 2000. Digital Systems for automated cartographic
feature extraction. In: [International Archives of the
Photogrammetry, Remote Sensing and Spatial Information
Sciences, Vol. XXXIII, Part B2, pp. 241-255.
Gülch, E., Müller, H., Läbe, T., 2000. Semi-automatische
Verfahren in der photogrammetrischen Objekterfassung.
Photogrammetrie | Fernerkundung | Geoinformation | (PFG),
3/2000, pp. 199-209.
Gülch, E., Müller, H., 2001. New applications of semi-
automatic building extraction. In: Proceedings Third
International Workshop on Automatic Extraction of Man-Made
Objects from Aerial and Space Images. Ascona, Switzerland,
10-15 June 2001. Swets&Zeitlinger Publishers/Balkema, The
Netherlands.
Inpho GmbH, 2004. http://www.inpho.de.
McKeown Jr., D.M., Denlinger, JL, 1988. Cooperative
Methods for Road Tracking in Aerial Imagery. Computer Vision
and Pattern Recognition, pp. 662-672.
Ohlhof, T., Emge, T., Reinhardt, W., Leukert, K., Heipke, C.,
Pakzad, K:, 2000. Generation and Update of VMap Data Using
Satellite and Airborne Imagery. In: International Archives of the
Photogrammetry, Remote Sensing and Spatial Information
Sciences, Vol. XXXIII, Part B4/2, pp. 762-768.
Ramer, U., 1972. An Iterative Procedure for the Polygonal
Approximation of Plane Curves. Computer, Graphics and
Image Processing, 1, pp. 244-256.
Shi, W., Joos, G., Reinhardt, W., 2001. Management of spatial
features with GML. In: Proceedings 4^ AGILE Conference on
Geographic Information Science. Brno.
Ulm, K., 2002. Improved 3D city modeling with CyberCity-
Modeler (CC-Modeler™) using aerial, satellite imagery and
laserscanner data In: International Archives of Photo-
grammetry, Remote Sensing and Spatial Information Sciences,
Vol. XXXIV, Part 5/W10.
Vosselman, G., de Knecht, J. (1995): Road Tracing by Profile
Matching and Kalman Filtering. Automatic Extraction of Man-
Made Objects from Aerial and Space Images, 265-2774.
ACKNOWLEDGEMENTS
The support of Dr. Gerhard Joos from University of the Federal
Armed Forces, Munich, in implementing the Dynamo GIS
interface is gratefully acknowledged.
476
KE
AB
Ma:
turn
prol
prey
una
mas
In t
deta
mas
stud
Cha
avet
Ima
proc
visu
imp
cher
reco
Rec
tech
and
qual
visic
store
meg
tech!
of e
qual
Duri
mac!
one
com
smaı
and
2003
1.1
The
are:
