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| Measurement | Sparsity | |
| [1] | E. J. Candés, J. Romberg, and T. Tao. Robust uncertainty principles: exact signal reconstruction from highly incomplete frequency information. IEEE Trans. Info. Theory, 52(2):489-509, February 2006. [ bib ] |
Figure 1 - The standard Shepp-Logan phantom. |
Figure 2 - Radial lines in the Fourier domain. |
Figure 3 - Radial lines with FFT shift. |
Figure 4 - Half of the radial lines, shifted. |
Figure 5 - Sorted Haar wavelet coefficients. |
Figure 6 - Haar wavelet coefficients. |