Table 2 Parameters used for WT, shaping methods and limits detection
From: Detection method of flexion relaxation phenomenon based on wavelets for patients with low back pain
Values | |
|---|---|
Wavelets parameters | |
Number of levels (J) | 4 |
Number of DWT sub-signals (NS ) | 4 |
Number of WPT sub-signals (NS ) | 30 |
Wavelet type | Haar |
Shaping parameters | |
Number of multi-windows (V) | 4 |
Sizes of multi-windows method (Θ(v) ) | Θ(1) = 0.6 s, Θ(2) = 0.8 s, Θ(3) = 1.6 s, and Θ(4) = 2 s |
Size of one-window method | Θ(1) = 0.6 s |
Determinations parameters | |
Threshold values | γ1 = 0.2 and γ2 = 0.2 |