International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004
AREA 1 BUILT % N°PATCH | PD ED MA
land 79.66 24 4.5 44.97 17.73
spot 2.9 43 8.08 105.8 9.03
ikonos 45.28 2380 447.37 746.97 0.10
lkonos 5 75.35 39 7.32 119 10.20
lkonos 10 82.31 27 6.16 89.87 16.22
AREA2
land 68.07 30 1257 64 5.41
spot 57.04 44 18.44 124.15 3.09
ikonas 35.11 1298 545.92 658.37 0.06
Ikonos 5 61.06 45 18.85 78.78 323
lkonos 10 73.56 34 14.24 67.37 5.16
Table 5. Indexes for areas 1 and 2 in absolute values
PD ED MA
EE EET
1 1 1 =:
0 0 pu B |
L-|:s K LK sl 10 Ic] S Kv PPM L — | K]|K5 K.10
-4 4 41
Figure 11. Areal: normalized graphs of indexes
PD ED MA
1 1 1
0 0 0 B
L S Wo [IK 5 [IK 10 | | S iC [KS #K 10 L K |IK5 K_10
-1 -1 -1
24 -2 2 +-
Figure 12. Area 2: normalized graphs of indexes
2. Areas 3 and 4 show in Spot and Landsat PD and ED values
higher than those of areas 1 and 2, while MA is lower (table 6,
figures 13 and 14).
Fragmented areas are represented by numerous patches spread
over the territory whose minimum size is defined by pixel size,
that means of 100m? for Spot (10m) and 900 m? for Landsat
(30m). In IKONOS the same areas are composed of patches
whose mean size is of 200 or 300m?. PD, ED and MA values are
lower .
For these areas IKONOS. 5 and IKONOS 10 do not give a
representation similar to Landsat and Spot. Indexes values of
first ones compared to the latter are: PD higher and SD values
lower. For example :
in area 3, PD is 82 and MA 0.17 for
IKONOS 5 to 41 and 0.48, respectively for Spot; in area 4, PD
is 74 and MA 0.16 for IKONOS 5 to 40 and 0.55, respectively
for Spot. Buffers entail only augmentation of surface of
IKONOS patches.
AREA 3 BUILT % N*PATCH | PD ED MA
land 2927 18 24.03 78.18 1.21
spot 23.00 31 41.38 169.28 0.55
ikonos 14.17 299 300.19 526.5 0.03
Ikonos 5 20.22 91 82.30 165.33 0.16
lkonos 10 27.60 71 94.79 119.67 1.05
AREA 4
land 28.49 130 25.14 77.87 1.13
spot 19.95 211 40.8 142.56 0.48
ikonos 7.10 1002 385.27 317.35 0.02
lkonos 5 12.95 383 74.07 141.78 0.17
lkonos 10 19.10 181 35.01 102.45 0.55
Table 6. Indexes for areas 3 and 4. in absolute values
470
PD ED MA
1 1 AO
0 0 o
x L S IK mum L s K KS m à L K jks * 10}
A A É
Figure 13. Area3: normalized graphs of indexes
PD ED MA i
1 1 1 L-——————
0 0 m] d E
L S IK 5 1K_10 L S KO 10 L K |IK5|IK_10
A 4 A
-27 -2 -2 4
Figure 14. Area 4: normalized graphs of indexes
3. Area S5 displays PD and AS values in Landsat and Spot
ranged between values of fragmented areas and concentrated
ones (table 7, figure 15). In IKONOS MA value is higher than
the one shown by concentrated areas, while PD and ED are
low. Statistics suggest a representation of industrial area
similar over scales, shaped into a set of patches medium-wide
sized .
IKONOS 5 and IKONOS 10 give a representation similar to
Landsat and Spot.
AREAS BUILT % N*PATCH | PD ED MA,
land 30.78 39 19.04 49.58 1.62
spot 24.17 53 25.87 111.41 0.93
ikonos 19.63 262 127.88 217.35 0.15
lkonos 5 25.93 5e 28.31 123.8 0.92
Ikonos 10 35.58 45 21.97 91.34 1.52
Table 7. Indexes for area 5 in absolute values
PD ED MA
2 2 2
E ||
1 1 r^ 1 E— LÀ
0 04 | E o
L $ IK Lacs] vo] L s K K5|K 10 L | K [RK K_10
44 1 | 4
LI]
-2 2 +2
normalized graphs of indexes
j,IKONO
5 |IKONOS 8
Figure 16. Normalized graphs of patch density
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