• DocumentCode
    545316
  • Title

    New realization of the image reconstruction |ω|-type filters using equiripple FIR and IIR structure

  • Author

    Bogorodzki, P. ; Piatkowski, A.

  • Author_Institution
    Medical & Nuclear Electronics Division, Institute of Radioelectronics, Warsaw University of Technology
  • Volume
    5
  • fYear
    1992
  • fDate
    Oct. 29 1992-Nov. 1 1992
  • Firstpage
    2190
  • Lastpage
    2191
  • Abstract
    A cmmon technique for image recon­struction in CT and MR tomography is so called Back Projec­tion (BP) algorithm. The weighting function used in first step of this algorithm can be viewed in space domain as a zerophase FIR (Finite Impulse Response) filter, or as realization an idealized magnitude shape (e.g. |ω|). Another realization of |ω| — filters will be presented, with better approximation near the low frequencies.
  • Keywords
    Biomedical imaging; Chebyshev approximation; IIR filters; Image reconstruction; Shape;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
  • Conference_Location
    Paris, France
  • Print_ISBN
    0-7803-0785-2
  • Electronic_ISBN
    0-7803-0816-6
  • Type

    conf

  • DOI
    10.1109/IEMBS.1992.5762231
  • Filename
    5762231
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=545316