Research Article

Nonconvex Compressed Sampling of Natural Images and Applications to Compressed MR Imaging

Table 1

Results on natural images in Figure 1 by three methods (SR = 38.56%, 𝑠 = 1 6 , 𝑝 = 1 ).

Image no.MethodExp. Result
SNRRel. err.Iter

Figure 1(a)FPC [10]27.80911.89%56
TVCMRI [11]31.10990.30%87
HQRCSparET 𝟑 𝟏 . 𝟔 𝟎 𝟒 𝟗 𝟎 . 𝟐 𝟖 % 59
Figure 1(b)FPC [10]27.33021.36%55
TVCMRI [11]30.47330.26%83
HQRCSparET 𝟑 𝟏 . 𝟏 𝟕 𝟑 𝟖 𝟎 . 𝟐 𝟑 % 62
Figure 1(c)FPC [10]23.83182.13%55
TVCMRI [11]30. 69340.16%86
HQRCSparET 𝟑 𝟐 . 𝟑 𝟐 𝟏 𝟎 𝟎 . 𝟏 𝟒 % 60
Figure 1(d)FPC [10]21.71863.06%55
TVCMRI [11]26.99040.33%80
HQRCSparET 𝟐 𝟗 . 𝟔 𝟒 𝟕 𝟓 𝟎 . 𝟐 𝟑 % 62
Figure 1(e)FPC [10]25.36912.02%56
TVCMRI [11]30.37760.21%82
HQRCSparET 𝟑 𝟒 . 𝟕 𝟐 𝟏 𝟕 𝟎 . 𝟏 𝟓 % 59
Figure 1(f)FPC [10]29.61601.10%55
TVCMRI [11]33.90650.31%79
HQRCSparET 𝟒 𝟐 . 𝟐 𝟖 𝟒 𝟐 𝟎 . 𝟏 𝟐 % 63