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Table 6
Reconstruction of the nebula as a mosaic of four reconstructed subimages with boundary effect correction, also in the case of three equispaced images.
| m = 10 | ||||
| Algorithm | It | Err | Sec | SpUp |
|
|
||||
| RL | 2899 | 0.034 | 13978 | – |
| RL_CUDA | 2899 | 0.034 | 174.2 | 80.2 |
| OSEM | 950 | 0.034 | 5447 | – |
| OSEM_CUDA | 950 | 0.034 | 64.03 | 85.1 |
| SGP | 160 | 0.034 | 873.3 | – |
| SGP_CUDA | 160 | 0.034 | 15.45 | 56.5 |
|
|
||||
| m = 15 | ||||
| Algorithm | It | Err | Sec | SpUp |
|
|
||||
| RL | 243 | 0.094 | 1174 | – |
| RL_CUDA | 243 | 0.094 | 15.28 | 76.8 |
| OSEM | 81 | 0.094 | 479.1 | – |
| OSEM_CUDA | 81 | 0.094 | 5.939 | 80.7 |
| SGP | 11 | 0.087 | 69.88 | – |
| SGP_CUDA | 11 | 0.086 | 1.532 | 45.6 |
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