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4.3. Correspondence of Landsat TM analysis and GIS
To examine the analysis which used the TM image and the
correspondence with GIS, the correlation analysis of an
analytical result of two techniques of the land coating
classification and the image operation processing and the
GIS item was done (Table 3). In Figure 5, it Was
understood that there Was a high correlation from the
relation between the GIS green tract of land area ratio of
the spindle and the green region rate by supervised
classification of a horizontal axis. (R=0.92) The utility of
the understanding of the item ‘of GIS was able to be
confirmed from this by the remote sensing analysis,
Table 3. Correlation matrix of GIS item and
Landsat analysis result
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Remote Sensing and Spatial Information Sciences, Vol XXXV ;
Part B7. Istanbul 2004
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Figure 5. Correlation of land coating classification
result (Landsat) and GIS item
The thing which was able to be understood from Table 3 by
high accuracy was able to be understood concerning the
green region rate and the urban rate which was able to be
read by the Landsat TM image in this manner. Moreover,
the population and the home index to which urbanization
was located by specifying an urban pixel in the remote
sensing analysis from this correlation matrix were able to
be understood. And, the green tract of land index of GIS
was able to be understood by specifying the green region
pixel. Therefore, the degree of an urban overcrowdedness
degree and the Open space in the city is understood from
the measurement of 2 indices(the green region rate and the
urban rate ) in each municipal district and it can be said it is
possible by the Landsat TM image's being used.
5. Analysis by using IKONOS image
The city in each municipal district was able to understand
the environment in the analysis of the Landsat TM image
as already described. Then, the City on each town even
number eyes understood the environment more in detail by
using the IKONOS image of a high resolution compared
with Landsat TM. Two municipal districts (the Chiba
Prefecture Urayasu City and the Kanagawa Prefecture
Kawasaki city Nakahara Ward ) were selected from among
57 municipal districts previously selected. These two
municipal districts are located along the river compared
with other regions, there are a lot of overcrowdedness
urban areas, and are the populous districts,
3.1. Understanding of city environment from each town
even number eyes by GIS .
To understand more detailed city environmental properties
on the GIS analysis, 8 items (the population , the number of
homes, the number of senior citizens, the death numberl,
the cancer death numberl, the fire number, the emergency
mobilization number, and the traffic accident number
Which was able to be acquired with each town even number
eyes) were collected. The collected statistical data were
previous similar analysis united as a value per the unit area.
The extraction of the overcrowdedness urban area on GIS
was tried by using these 8 items. AS à result, in the Urayasu
City, the district in the expressway north of Toudaijima,
1117
Nekozane, Horie, Kitasakae, and Fujimi understood the
thing which was the overcrowdedness urban area from
situations such as the population, the numbers of homes,
and fire number. Moreover, to find the relations between