Zañudo [26] | Devloo [32] | Tamura [33] | Our method | |||||
---|---|---|---|---|---|---|---|---|
 n | mean | stdev. | mean | stdev. | mean | stdev. | mean | stdev. |
 20 | 1.024 | 0.403 | 0.110 | 0.090 | 0.011 | NR | 0.273 | 0.040 |
 40 | DF | DF | 0.340 | 0.270 | 0.296 | NR | 0.300 | 0.126 |
 60 | DF | DF | 2.251 ∗ | 2.120 ∗ | 2.414 | NR | 0.415 | 0.552 |
 80 | DF | DF | 10.05 ∗ | 10.84 ∗ | 17.07 | NR | 1.143 | 8.414 |
100 | DF | DF | 60.10 | 59.10 | 94.08 | NR | 2.878 | 16.74 |
120 | DF | DF | 200.5 ∗ | 283.6 ∗ | 714.4 ∗ | NR | 9.278 | 51.79 |