5
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Few-view image reconstruction with fractional-order total variation

      , , ,

      Journal of the Optical Society of America A

      The Optical Society

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Related collections

          Most cited references 15

          • Record: found
          • Abstract: not found
          • Article: not found

          Compressed sensing

           D.L. Donoho (2006)
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Algebraic reconstruction techniques (ART) for three-dimensional electron microscopy and x-ray photography.

              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Image reconstruction in circular cone-beam computed tomography by constrained, total-variation minimization.

              An iterative algorithm, based on recent work in compressive sensing, is developed for volume image reconstruction from a circular cone-beam scan. The algorithm minimizes the total variation (TV) of the image subject to the constraint that the estimated projection data is within a specified tolerance of the available data and that the values of the volume image are non-negative. The constraints are enforced by the use of projection onto convex sets (POCS) and the TV objective is minimized by steepest descent with an adaptive step-size. The algorithm is referred to as adaptive-steepest-descent-POCS (ASD-POCS). It appears to be robust against cone-beam artifacts, and may be particularly useful when the angular range is limited or when the angular sampling rate is low. The ASD-POCS algorithm is tested with the Defrise disk and jaw computerized phantoms. Some comparisons are performed with the POCS and expectation-maximization (EM) algorithms. Although the algorithm is presented in the context of circular cone-beam image reconstruction, it can also be applied to scanning geometries involving other x-ray source trajectories.
                Bookmark

                Author and article information

                Journal
                JOAOD6
                Journal of the Optical Society of America A
                J. Opt. Soc. Am. A
                The Optical Society
                1084-7529
                1520-8532
                2014
                2014
                April 09 2014
                May 01 2014
                : 31
                : 5
                : 981
                Article
                10.1364/JOSAA.31.000981
                9c26ade3-8769-4eca-bbc9-8d7245e61f34
                © 2014

                Comments

                Comment on this article