Research Article
Real-Time Compressive Sensing MRI Reconstruction Using GPU Computing and Split Bregman Methods
Algorithm 1
GPU-based Split Bregman Compressive Sensing Reconstruction.
Transfer Fourier data and k-space mask to GPU. | Initialize necessary temporary arrays on the GPU. | Precompute outer and inner loop-independent factors. | outer loop times: | inner loop times: | (4) Minimize L2 norm by direct matrix inversion. | (5) Update solution image. | (6) “Shrink” TV of solution. | (7) Update Bregman parameters. | end | (8) Update Fourier data matrix. | (9) Update inner loop-independent matrices. | end | (10) Transfer solution to CPU. |
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