Literature DB >> 25729091

Revisit of the Ramp Filter.

Gengsheng L Zeng1.   

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.

Entities:  

Keywords:  Filtered backprojection algorithm; analytic image reconstruction

Year:  2015        PMID： 25729091      PMCID： PMC4341983          DOI： 10.1109/TNS.2014.2363776

Source DB:  PubMed          Journal:  IEEE Trans Nucl Sci        ISSN： 0018-9499            Impact factor:   1.679


  8 in total

1.  Ripple suppression during reconstruction in transverse tomography.

Authors:  D A Chesler; S J Riederer
Journal:  Phys Med Biol       Date:  1975-07       Impact factor: 3.609

2.  Oversampled filters for quantitative volumetric PET reconstruction.

Authors:  C W Stearns; C R Crawford; H Hu
Journal:  Phys Med Biol       Date:  1994-03       Impact factor: 3.609

3.  CT filtration aliasing artifacts.

Authors:  C R Crawford
Journal:  IEEE Trans Med Imaging       Date:  1991       Impact factor: 10.048

4.  Maximum likelihood reconstruction for emission tomography.

Authors:  L A Shepp; Y Vardi
Journal:  IEEE Trans Med Imaging       Date:  1982       Impact factor: 10.048

5.  A filtered backprojection algorithm with ray-by-ray noise weighting.

Authors:  Gengsheng L Zeng; Alex Zamyatin
Journal:  Med Phys       Date:  2013-03       Impact factor: 4.071

6.  Quantitative effects of stationary linear image processing on noise and resolution of structure in radionuclide images.

Authors:  C E Metz; R N Beck
Journal:  J Nucl Med       Date:  1974-03       Impact factor: 10.057

7.  Three-dimensional reconstruction from radiographs and electron micrographs: application of convolutions instead of Fourier transforms.

Authors:  G N Ramachandran; A V Lakshminarayanan
Journal:  Proc Natl Acad Sci U S A       Date:  1971-09       Impact factor: 11.205

8.  On the optimality of the filtered backprojection algorithm.

Authors:  K M Hanson
Journal:  J Comput Assist Tomogr       Date:  1980-06       Impact factor: 1.826
  8 in total
  5 in total

1.  Estimation of the Initial Image's Contributions to the Iterative Landweber Reconstruction.

Authors:  Gengsheng L Zeng
Journal:  IEEE Trans Radiat Plasma Med Sci       Date:  2017-11-17

2.  Efficient Bandwidth Estimation in 2D Filtered Backprojection Reconstruction.

Authors:  Ranjan Maitra
Journal:  IEEE Trans Image Process       Date:  2019-06-04       Impact factor: 10.856

3.  Noise-Weighted FBP Algorithm for Uniformly Attenuated SPECT Projections.

Authors:  Gengsheng L Zeng
Journal:  IEEE Trans Nucl Sci       Date:  2016-06-23       Impact factor: 1.679

4.  A fast method to emulate an iterative POCS image reconstruction algorithm.

Authors:  Gengsheng L Zeng
Journal:  Med Phys       Date:  2017-10       Impact factor: 4.071

5.  Accelerating compressed sensing reconstruction of subsampled radial k-space data using geometrically-derived density compensation.

Authors:  KyungPyo Hong; Florian Schiffers; Amanda L DiCarlo; Cynthia K Rigsby; Hassan Haji-Valizadeh; Daniel C Lee; Michael Markl; Aggelos K Katsaggelos; Daniel Kim
Journal:  Phys Med Biol       Date:  2021-10-21       Impact factor: 4.174
  5 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.