Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Reconstruction of sparse-view tomography via preconditioned Radon sensing matrix Subject The topic of the resource Compressive sensing; Computed tomography; Preconditioning; Radon transform; Sparse approximation; TVAL3 Description An account of the resource Computed Tomography (CT) is one of the significant research areas in the field of medical image analysis. As X-rays used in CT image reconstruction are harmful to the human body, it is necessary to reduce the X-ray dosage while also maintaining good quality of CT images. Since medical images have a natural sparsity, one can directly employ compressive sensing (CS) techniques to reconstruct the CT images. In CS, sensing matrices having low coherence (a measure providing correlation among columns) provide better image reconstruction. However, the sensing matrix constructed through the incomplete angular set of Radon projections typically possesses large coherence. In this paper, we attempt to reduce the coherence of the sensing matrix via a square and invertible preconditioner possessing a small condition number, which is obtained through a convex optimization technique. The stated properties of our preconditioner imply that it can be used effectively even in noisy cases. We demonstrate empirically that the preconditioned sensing matrix yields better signal recovery than the original sensing matrix. 2018, Korean Society for Computational and Applied Mathematics. Creator An entity primarily responsible for making the resource Theeda P.; Kumar P.U.P.; Sastry C.S.; Jampana P.V. Source A related resource from which the described resource is derived Journal of Applied Mathematics and Computing, Vol-59, No. 45689, pp. 285-303. Publisher An entity responsible for making the resource available Springer Verlag Date A point or period of time associated with an event in the lifecycle of the resource 2019-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1007/s12190-018-1180-1" target="_blank" rel="noreferrer noopener">https://doi.org/10.1007/s12190-018-1180-1</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044217238&amp;doi=10.1007%2Fs12190-018-1180-1&amp;partnerID=40&amp;md5=71934ea20e970c43071b8ba67a14dc27" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044217238&amp;doi=10.1007%2fs12190-018-1180-1&amp;partnerID=40&amp;md5=71934ea20e970c43071b8ba67a14dc27</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 15985865 Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Theeda P., Department of Mathematics, Indian Institute of Technology Hyderabad, Sangareddy, India; Kumar P.U.P., Department of Mathematics, Indian Institute of Technology Hyderabad, Sangareddy, India, Department of Computer Science, CHRIST University, Bengaluru, India; Sastry C.S., Department of Mathematics, Indian Institute of Technology Hyderabad, Sangareddy, India; Jampana P.V., Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, India