Figure 7From: Sparse CT reconstruction based on multi-direction anisotropic total variation (MDATV) Restored images from 15 views of noise-free (top row) and noisy projections (bottom row) with methods of ART-TV-GD, ART-TV-NESTA, ART-ATV-GD, ART-ATV-NESTA, ART-MDATV-GD, and ART-MDATV-NESTA (from left to right) after 100 iterations. The display gray scale window is [0,1].Back to article page