• DocumentCode
    3759563
  • Title

    Revisit of the ramp filter

  • Author

    Gengsheng L. Zeng

  • Author_Institution
    Department of Electrical Engineering, Weber State University, Ogden, UT 84408 USA
  • fYear
    2014
  • Firstpage
    1
  • Lastpage
    6
  • Abstract
    An important part of the filtered backprojection (FBP) algorithm is the ramp filter. This paper derives the discrete version of the ramp filter in the Fourier domain and studies the windowing effects. When a window function is used to control the noise, the image amplitude will be affected and reduced. A simple remedy is proposed to improve the image accuracy when a window function must be used.
  • Keywords
    "Filtering algorithms","Manganese","Indexes","Image reconstruction","Signal processing","Linear systems"
  • Publisher
    ieee
  • Conference_Titel
    Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2014 IEEE
  • Type

    conf

  • DOI
    10.1109/NSSMIC.2014.7430796
  • Filename
    7430796
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3759563