Table II.
| 5% of Noise | 20% of Noise | |||||||
|---|---|---|---|---|---|---|---|---|
| Method | Order | Resolution | Pre‐smooth | Method | Order | Resolution | Pre‐smooth | |
| 12 pixels | ||||||||
| 2% | Gabor | 1 | Yes | Gabor | 2 | Yes | ||
| 1% | Gabor | 1 | Yes | Gabor | 2 | Yes | ||
| 0.5% | Gabor | 2 | No | Gabor | 2 | No | ||
| 8 pixels | ||||||||
| 3% | Gabor | 1 | Yes | Gabor | 1 | Yes | ||
| 2% | Gabor | 1 | Yes | Gabor | 2 | Yes | ||
| 1% | Gabor | 1 | Yes | Gabor | 2 | Yes | ||
| 0.5% | Gabor | 2 | Yes | Lemarie | 2 | 4 | Yes | |
| 4 pixels | ||||||||
| 3% | Gabor | 1 | Yes | Symlets | 4 | 1 | Yes | |
| 2% | Daubechies | 2 | 1 | No | Daubechies | 4 | 1 | Yes |
| 1% | Gabor | 1 | No | Lemarie | 2 | 2 | Yes | |
| 0.5% | Spline | 2,8 | 1 | No | Spline | 2,8 | 1 | No |
| 2 pixels | ||||||||
| 3% | Gabor | 1 | No | Lemarie | 2 | 1 | No | |
| 2% | Lemarie | 2 | 1 | No | Daubechies | 2 | 1 | Yes |
| 1% | Daybechies | 2 | 1 | No | Daubechies | 2 | 1 | No |
| 0.5% | Symlet | 4 | 1 | No | Symlets | 4 | 1 | No |
| 1 pixel | ||||||||
| 4% | Gabor | 1 | No | Spline | 2,8 | 1 | No | |
| 3% | Gabor | 1 | No | Gabor | 1,2 | No | ||
| 2% | No detection | No detection | ||||||
| 1% | No detection | No detection | ||||||
| 0.5% | No detection | No detection | ||||||
Best method for detecting activity depending on the size of the activation region and activity level. Data for the two extreme noise figures tested (5% and 20%) are provided. Order, resolution and whether pre‐smoothing was applied are also indicated.