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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: Magn Reson Med. 2018 May 30;80(6):2549–2559. doi: 10.1002/mrm.27236

Figure 1.

Figure 1

The phase-based motion processing algorithm, described by Wadhwa et al [19], applied to MRI cine data. (a) The cine MRI (short video) is decomposed by the complex steerable pyramid into scales and orientations. (b) The phases are independently temporally filtered at each spatial location, orientation, and scale. (c) Optional step: the filtered phases can be “spatially” filtered again to increase the phase SNR using amplitude-weighted Gaussian spatial smoothing. (d) The filtered phases are multiplied by an amplification parameter and added to the original phase components, and finally the video is reconstructed (e).