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Table 5
Reconstruction of the nebula using three equispaced 512 × 512 images.
| m = 10 | ||||
| Algorithm | It | Err | Sec | SpUp |
|
|
||||
| RL | 3401 | 0.032 | 4364 | – |
| RL_CUDA | 3401 | 0.032 | 48.00 | 90.9 |
| OSEM | 1133 | 0.032 | 1602 | – |
| OSEM_CUDA | 1133 | 0.032 | 18.59 | 86.2 |
| SGP | 144 | 0.033 | 220.7 | – |
| SGP_CUDA | 144 | 0.033 | 3.563 | 61.9 |
|
|
||||
| m = 15 | ||||
| Algorithm | It | Err | Sec | SpUp |
|
|
||||
| RL | 353 | 0.091 | 441.5 | – |
| RL_CUDA | 353 | 0.091 | 4.937 | 89.4 |
| OSEM | 117 | 0.091 | 165.7 | – |
| OSEM_CUDA | 117 | 0.091 | 2.062 | 80.4 |
| SGP | 16 | 0.087 | 26.14 | – |
| SGP_CUDA | 16 | 0.087 | 0.546 | 47.9 |
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