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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: IEEE Trans Med Imaging. 2012 Feb 15;31(6):1250–1262. doi: 10.1109/TMI.2012.2188039

Figure 1.

Figure 1

The POCS algorithm. Line (A) performs SPIRiT k-space interpolation, implemented as voxel-wise matrix-vector multiplications in the image domain. Line (B) performs Wavelet Soft-thresholding, computationally dominated by the forward/inverse Wavelet transforms. Line (C) performs the k-space consistency projection, dominated by inverse/forward Fourier transforms.