Table 2 The Covariance of the pre-processed feature sequences

Scen.1(\(\times 10^{-5}\))

0.86

1.14

1.40

1.32

2.05

1.67

0.51

0

Scen.2(\(\times 10^{-5}\))

1.09

1.48

1.86

2.11

2.41

2.69

1.19

0

Scen.3(\(\times 10^{-5}\))

0.77

1.04

1.18

1.50

2.00

2.28

0.44

0

Scen.4(\(\times 10^{-5}\))

0.81

1.12

1.23

1.65

1.56

1.97

0.95

0

Scen.5(\(\times 10^{-5}\))

0.93

1.36

1.55

1.75

2.35

2.46

0.67

0