Table 4 Matching experimental data results for different scales.

From: Research on efficient matching method of coal gangue recognition image and sorting image

Scale (α)

0.3\(\:{\upalpha\:}\)

0.\(\:5{\upalpha\:}\)

0.7\(\:{\upalpha\:}\)

0.9α

P/%

R/%

T/ms

P/%

R/%

T/ms

P/%

R/%

T/ms

P/%

R/%

T/ms

MatchNet

86.2

88.2

85

89.5

88.9

103

90.9

90.5

126

92.1

93.1

131

D2-Net

92.1

92.5

98

92.8

93.1

128

93.2

92.8

171

93.6

93.6

188

SP-SG

94.1

94.3

40

94.5

94.6

62

95.9

94.9

73

96.4

96.8

82

LR-SG

91.8

92

49

92.6

92.7

68

92.8

92.9

76

93.5

93.9

87

DBSCAN-SG

92

92.1

38

92.5

92.8

56

93.7

93.9

63

94.2

94.4

79

IMSSP-Net

97.8

98

44

97.9

97.2

64

98.2

98.4

77

98.5

98.8

84