Table III.
Performances of Different Orientation Descriptors at Varying Levels of Noise: (a) Errors in Orientation Estimation in Terms of the Mean Angular Discrepancy δ (Degrees) and (b) Mean Width Estimation Error Rates ξ (%)
| Descriptor | SNR (dB) | |||||
|---|---|---|---|---|---|---|
| ∞ | 30 | 20 | 15 | 10 | 5 | |
| Hessian | 9.33 | 9.24 | 9.44 | 10.35 | 12.19 | 14.62 |
| Cores | 7.16 | 7.16 | 7.19 | 7.35 | 7.62 | 8.90 |
| OOF | 6.23 | 6.23 | 6.33 | 6.53 | 7.30 | 9.30 |
| ODF | 6.12 | 6.14 | 6.15 | 6.24 | 6.50 | 7.55 |
| (a) | ||||||
| Descriptor | SNR (dB) | |||||
|---|---|---|---|---|---|---|
| ∞ | 30 | 20 | 15 | 10 | 5 | |
| Hessian | 25 | 25 | 26 | 25 | 25 | 22 |
| Cores | 13 | 13 | 13 | 14 | 14 | 17 |
| OOF | 25 | 25 | 25 | 25 | 25 | 22 |
| ODF | 8 | 8 | 8 | 8 | 10 | 12 |
| (b) | ||||||