A new method for microdensitometer slit length correction of radiographic noise power spectra

K. Koedooder; J. Strackee; H. W. Venema

doi:10.1118/1.595853

A new method for microdensitometer slit length correction of radiographic noise power spectra

K. Koedooder
, J. Strackee
, H. W. Venema

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

When the power spectrum of radiographic noise is estimated from scans obtained with a microdensitometer equipped with a rectangular slit, a bias is present due to the finite length of this slit. A method to correct for this bias was developed and was tested on both a simulated and a measured spectrum. No bias remains with our method, in situations where a conventional method shows a significantly biased result. Good agreement was found with the synthesized slit method, described by Sandrik and Wagner

Original language	English
Pages (from-to)	469-473
Journal	Medical physics
Volume	13
Issue number	4
DOIs	https://doi.org/10.1118/1.595853
Publication status	Published - 1986

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@article{a09b7f3de16e4796b13126eec9ceeffd,

title = "A new method for microdensitometer slit length correction of radiographic noise power spectra",

abstract = "When the power spectrum of radiographic noise is estimated from scans obtained with a microdensitometer equipped with a rectangular slit, a bias is present due to the finite length of this slit. A method to correct for this bias was developed and was tested on both a simulated and a measured spectrum. No bias remains with our method, in situations where a conventional method shows a significantly biased result. Good agreement was found with the synthesized slit method, described by Sandrik and Wagner",

author = "K. Koedooder and J. Strackee and Venema, \{H. W.\}",

year = "1986",

doi = "10.1118/1.595853",

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journal = "Medical physics",

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T1 - A new method for microdensitometer slit length correction of radiographic noise power spectra

AU - Koedooder, K.

AU - Strackee, J.

AU - Venema, H. W.

PY - 1986

Y1 - 1986

N2 - When the power spectrum of radiographic noise is estimated from scans obtained with a microdensitometer equipped with a rectangular slit, a bias is present due to the finite length of this slit. A method to correct for this bias was developed and was tested on both a simulated and a measured spectrum. No bias remains with our method, in situations where a conventional method shows a significantly biased result. Good agreement was found with the synthesized slit method, described by Sandrik and Wagner

AB - When the power spectrum of radiographic noise is estimated from scans obtained with a microdensitometer equipped with a rectangular slit, a bias is present due to the finite length of this slit. A method to correct for this bias was developed and was tested on both a simulated and a measured spectrum. No bias remains with our method, in situations where a conventional method shows a significantly biased result. Good agreement was found with the synthesized slit method, described by Sandrik and Wagner

U2 - 10.1118/1.595853

DO - 10.1118/1.595853

M3 - Article

C2 - 3736504

SN - 0094-2405

VL - 13

SP - 469

EP - 473

JO - Medical physics

JF - Medical physics

IS - 4

ER -

A new method for microdensitometer slit length correction of radiographic noise power spectra

Abstract

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