Research Article
3D Alternating Direction TV-Based Cone-Beam CT Reconstruction with Efficient GPU Implementation
Table 2
Running time for related operation in the reconstruction (unit for time: seconds).
| ā | Situation 1 | Situation 2 | ā | CPU | GPU | Speedup | CPU | GPU | Speedup |
| | 0.030000 | 0.0002312 | 129.76 | 0.398274 | 0.0026197 | 152.03 | | 0.042977 | 0.0003432 | 125.22 | 0.529065 | 0.0032604 | 162.27 | | 10.248665 | 0.058801 | 174.29 | 83.390976 | 0.452213 | 184.41 | | 73.074226 | 0.399989 | 182.69 | 636.070923 | 3.151384 | 201.83 |
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