Spread Spectrum
A universal and efficient compressed sensing strategy based on the use of a spread spectrum technique...
Application to Magnetic Resonance Imaging (MRI)
The figure below shows the MRI image obtained without (left) and with (right) the Spread Spectrum Technology.
Source: http://www.cibm.ch/.
The figure below shows the Phase transition of the ℓ1-minimization problem for sparse signals in the Fourier basis and random selection of Fourier (first and third panels) or Hadamard (second and fourth panels) measurements without and with random modulation:
In Puy et al. submitted to SPARS'11
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