Land Cover Information Extraction Based on Daily NDVI Time Series and Multiclassifier Combination
Table 6
Classification results of multiclassifier combination.
Index
SAM + minimum distance + statistics
SAM + SVM + QUEST
PA (%)
UA (%)
PA (%)
UA (%)
C1
69.19 (65.15)
75.90 (79.63)
95.20 (92.68)
93.09 (95.32)
C2
74.18 (73.91)
67.24 (76.62)
77.72 (77.72)
82.90 (85.37)
C3
77.87 (70.22)
87.42 (88.93)
91.53 (93.44)
98.82 (99.71)
C4
86.79 (90.93)
87.24 (90.70)
99.48 (99.48)
96.24 (96.73)
C5
88.92 (84.28)
81.18 (86.51)
95.10 (95.36)
99.46 (99.46)
C6
78.14 (73.50)
92.56 (91.81)
93.40 (93.72)
98.30 (98.56)
C7
84.80 (90.93)
73.61 (59.82)
96.50 (98.40)
79.90 (80.92)
C8
100.00 (100.00)
99.19 (100.00)
100.00 (99.45)
99.73 (100.00)
C9
69.21 (81.19)
75.91 (77.80)
98.17 (98.62)
94.07 (94.71)
C10
68.12 (81.74)
70.17 (75.57)
87.47 (92.92)
96.69 (95.25)
Overall accuracy
80.49% (81.15%)
93.60% (94.28%)
Kc
0.7832 (0.7905)
0.9289 (0.9365)
Note. The columns show the classification results of the original multiclassifier with those for the improved multiclassifier combination shown in parentheses; PA: prod accuracy; UA: user accuracy; Kc: Kappa coefficient; C1: woodland; C2: kiwi orchard; C3: bare rocky gravel; C4: river canal; C5: beach; C6: sandy ground; C7: rural residential area; C8: cultivated land; C9: town; C10: apple orchard.
