NUFFT-Based Iterative Image Reconstruction via Alternating Direction Total Variation Minimization for Sparse-View CT

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/cmmm/volume-2015/691021/figures/691021.fig.003a.svgz" name="691021.fig.003a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Phantom</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/cmmm/volume-2015/691021/figures/691021.fig.003b.svgz" name="691021.fig.003b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>SART-TV</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/cmmm/volume-2015/691021/figures/691021.fig.003c.svgz" name="691021.fig.003c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>ADTVM</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/cmmm/volume-2015/691021/figures/691021.fig.003d.svgz" name="691021.fig.003d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>New method</td></tr></table>

<div>Image reconstructions of the Shepp-Logan phantom in 60-view scan. Display Window (0.1 0.5). (a) shows the original image. (b) shows the image after applying the SART-TV algorithm at 200 iterations. (c) gives the image after vua the ADTVM algorithm at 200 iterations. (d) presents the reconstruction image after using the NUFFT-ADM algorithm at 200 iterations.</div>

Computational and Mathematical Methods in Medicine

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Figure 3

Figure 3: NUFFT-Based Iterative Image Reconstruction via Alternating Direction Total Variation Minimization for Sparse-View CT 