Table 1 Optimal filtering effect for different types of structure elements
From: A de-noising algorithm for bridge cable force monitoring data based on mathematical morphology
Structure element | Parameter | Filter type | Index E |
|---|---|---|---|
Straight line | L = 40, D = 90 | Hybrid filter | 1.397 × 10−3 |
L = 25, D = 88 | Alternating hybrid filter | 1.416 × 10−3 | |
Rhombus | L = 20 | Hybrid filter | 1.397 × 10−3 |
L = 12 | Alternating hybrid filter | 1.416 × 10−3 | |
Sphere | R = 44, H = 1 | Hybrid filter | 9.78 × 10−4 |
R = 42, H = 1 | Alternating hybrid filter | 7.68 × 10−4 |