Selection of a convolution function for Fourier inversion using gridding [computerised tomography application].

Abstract:

:In the technique known as gridding, the data samples are weighted for sampling density and convolved with a finite kernel, then resampled on a grid preparatory to a fast Fourier transform. The authors compare the artifact introduced into the image for various convolving functions of different sizes, including the Kaiser-Bessel window and the zero-order prolate spheroidal wave function (PSWF). They also show a convolving function that improves upon the PSWF in some circumstances.

journal_name

IEEE Trans Med Imaging

authors

Jackson JI,Meyer CH,Nishimura DG,Macovski A

doi

10.1109/42.97598

subject

Has Abstract

pub_date

1991-01-01 00:00:00

pages

473-8

issue

3

eissn

0278-0062

issn

1558-254X

journal_volume

10

pub_type

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