• DocumentCode
    686787
  • Title

    Optimization of regularization parameter in a reconstruction algorithm

  • Author

    Abdalah, Mahmoud ; Mitra, Debasis ; Boutchko, Rostyslav ; Gullberg, Grant T.

  • Author_Institution
    Comput. Sci. Dept., Florida Inst. of Technol., Melbourne, FL, USA
  • fYear
    2013
  • fDate
    Oct. 27 2013-Nov. 2 2013
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    In computerized tomography, one of the major problems in most optimization algorithms that use some form of regularization is to determine the weighting parameter (RP) for the regularizing component within the objective function. Typically this parameter is selected manually by some previous experimentation that involves varying the RP values, a highly time consuming process. The objective of this work was to present an iterative algorithm that dynamically optimizes RP within each iteration and eliminates the need for performing any exhaustive experimentation to find proper regularization parameter values.
  • Keywords
    computerised tomography; image reconstruction; iterative methods; medical image processing; computerized tomography; iterative algorithm; reconstruction algorithm; regularization parameter optimization; weighting parameter; Collimators; Heuristic algorithms; Image reconstruction; Indium tin oxide; Linear programming; Optimization; Single photon emission computed tomography; Optimization; reconstruction; regularization parameter;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE
  • Conference_Location
    Seoul
  • Print_ISBN
    978-1-4799-0533-1
  • Type

    conf

  • DOI
    10.1109/NSSMIC.2013.6829217
  • Filename
    6829217