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

Figure 4

The profile of line 140 in different reconstructed images. Left column is for noise-free date and right column is for noisy data. (a) and (b) are for ART method; (c) and (d) are for ART-TV method; (e) and (f) are for SpBr-NACT method.

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(b)

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(e)

(f)