Research Article
A Sparse Volume Reconstruction Method for Fetal Brain MRI Using Adaptive Kernel Regression
Table 2
The running time comparison of the adaptive kernel regression method for fetal brain reconstruction based on CPU and GPU, respectively.
| | Processor | Single-threaded CPU | Multithreaded CPU | GPU | Single-threaded CPU vs. GPU | Multithreaded CPU vs. GPU |
| | Gradient information (s) | 416.960 | 108.762 | 5.047 | 82.62 | 21.55 | | Covariance smoothing matrix (s) | 46.082 | 48.902 | 0.580 | 79.45 | 84.31 | | Steering kernel regression (s) | 1402.727 | 887.629 | 15.091 | 92.95 | 58.82 | | Total time (s) | 1865.769 | 1045.293 | 20.718 | 90.06 | 50.45 |
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