Table 2. Results of alignment by rotational autocorrelation.
Runs: a weak run (22), a strong run (14) and a many-run composite image (runs 13–22). For the single-angle method and the multi-angle method, for each quadrant the pixel offset needed to move the quadrant to maximize the rotational autocorrelation CC and the CC at that position are listed.
| Single-angle method | Multi-angle method | ||||
|---|---|---|---|---|---|
| Run(s) | Quadrant | CC (%) | Quad offset (pixels) | CC (%) | Quad offset (pixels) |
| 22 | 0 | 6.1 | (3, 2) | 16.4 | (20, −20) |
| 1 | 8.0 | (5, 2) | 12.5 | (−8, −13) | |
| 2 | 6.3 | (2, 1) | 11.9 | (−19, 6) | |
| 3 | 6.5 | (1, −5) | 11.1 | (11, 15) | |
| 14 | 0 | 21.5 | (3, 2) | 24.6 | (3, 2) |
| 1 | 23.0 | (5, 3) | 27.0 | (5, 3) | |
| 2 | 25.8 | (4, 0) | 27.7 | (4, 0) | |
| 3 | 23.6 | (0, −6) | 26.5 | (1, −5) | |
| 13–22 | 0 | 28.4 | (3, 2) | 32.5 | (3, 2) |
| 1 | 32.6 | (5, 3) | 37.7 | (5, 4) | |
| 2 | 36.6 | (4, 0) | 41.5 | (3, 0) | |
| 3 | 33.9 | (0, −6) | 37.8 | (0, −7) | |