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nage object
Itural plot
AMEWORK
use classification
ing techniques to
ter, segmentation
1e region growing
. These basic land
d, grass, parts of
open water, etc.
n constituents of
| patches of bare
ie, or a part of a
vork, labelling of
ts produced at an
basic land cover
objects would be
bjects. Relatively
t of backyards of
B3. Istanbul 2004
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B3. Istanbul 2004
Residential Area |
Non-residential Area
Large-scale
Forest
Farmland
Office Building
House
A
| À
Backyard
Rice field,
fallow ete
Plant community
Manmade
object
| |
Soil Grass
Tree
Le
a
Pixels with different spectral properties
Small-scale
Figure 5. Schematic of the object relationships among the image and geographic features
houses. On the other hand, relatively large patches of bare soil
may be part of fallow plots.
Spectral and textural information would be also utilized for
detailed land use mapping in the framework of the object-based
classification. Labelling plant community types such as
deciduous forests, bamboo forests, etc. needs spectral and
texture analyses of image objects.
A land use mapping of the study area was demonstrated using
the above classification strategy, and the result was compared to
an existing land use map which was compiled from the results
of aerial photo-interpretation and ground truth data. The land
use map created through the object-oriented approach showed a
good correspondence with the existing map.
6. CONCLUDING REMARKS
This study discussed the correspondence between image objects
produced with a multi-scale segmentation technique and land
use classes commonly observable in rural land uses in Japan,
through an actual image analysis using IKONOS data, and
suggested a land use classification framework employing the
object-oriented approach. Regarding the future work, the
proposed classification framework would be tested in the land
use mapping projects in the different areas for the validation
and generalization of the classification strategy.
References
Baatz, M. and Schápe, A., 2000. Multiresolution segmentation:
an optimization Approach for high quality multi-scale image
segmentation. In: Strobl, J. and Blaschke, T. (Eds.):
Angewandte Geographische Informations verarbeitung XII,
Wichmann-Verlag, Heidelberg, pp.12-23.
Blaschke, T., Strobl, J. 2002. What’s wrong with pixels? Some
recent developments interfacing remote sensing and GIS.
GeoBIT/GIS: J. Spatial inform. Decision Making, No. 6/2001,
pp. 12-17.
Usuda, Y., et al. 2003. A study on the optimization of image
segmentation in object-Oriented Classification. Proceedings
of the annual conference of the Japan Society for
Photogrammetry and Remote Sensing in 2003 pp. 125-128.
(in Japanese)
van der Sande, C. J, et al. 2003. A segmentation and
classification approach of IKONOS-2 imagery for land cover
mapping to assist flood risk and flood damage assessment. Int.
J. Applied Earth Observation and Geoinformation, Vol. 4, pp.
217-229.