Research Article

A CT Reconstruction Algorithm Based on Non-Aliasing Contourlet Transform and Compressive Sensing

Figure 5

The relationship of RMSE and UQI with respect to iteration number. (a) and (b) are the RMSE and UQI of reconstructed images from noise-free data with ART, ART-TV, and SpBr-NACT method, respectively. (c) and (d) are the RMSE and UQI of reconstructed images from noisy data with ART, ART-TV, and SpBr-NACT method, respectively.
753615.fig.005a
(a)
753615.fig.005b
(b)
753615.fig.005c
(c)
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(d)