An analytical edge spread function model for computer fitting and subsequent calculation of the LSF and MTF

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

The previous work of Yin, Giger, and Doi [Med. Phys. 17, 962-966 (1990)] demonstrated that using a computerized fit of an analytic line spread function to experimentally measured data is very useful for determining the presampling modulation transfer function of an imaging system. In this report, the work of Yin et al. is extended to include an analytic expression for the edge spread function (ESF). By fitting experimentally determined edge spread function data to the analytical expression, the normalized line spread function (LSF) and the normalized modulation transfer function (MTF) can be easily calculated from four ESF fit coefficients. The extension from the line spread function to the edge spread function should be valuable in cases where slit measurements are impractical, for example, in very high resolution imaging systems where the required slit dimensions become impractically small, or in measurements of the transfer properties of scattered radiation or off-focus radiation, where large area exposures are necessary.

Original languageEnglish (US)
Pages (from-to)1541-1545
Number of pages5
JournalMedical Physics
Volume21
Issue number10
DOIs
StatePublished - 1994

Fingerprint

Computer Simulation
Radiation

ASJC Scopus subject areas

  • Biophysics

Cite this

@article{48acf02020ca43c28692f7f8d3d1a554,
title = "An analytical edge spread function model for computer fitting and subsequent calculation of the LSF and MTF",
abstract = "The previous work of Yin, Giger, and Doi [Med. Phys. 17, 962-966 (1990)] demonstrated that using a computerized fit of an analytic line spread function to experimentally measured data is very useful for determining the presampling modulation transfer function of an imaging system. In this report, the work of Yin et al. is extended to include an analytic expression for the edge spread function (ESF). By fitting experimentally determined edge spread function data to the analytical expression, the normalized line spread function (LSF) and the normalized modulation transfer function (MTF) can be easily calculated from four ESF fit coefficients. The extension from the line spread function to the edge spread function should be valuable in cases where slit measurements are impractical, for example, in very high resolution imaging systems where the required slit dimensions become impractically small, or in measurements of the transfer properties of scattered radiation or off-focus radiation, where large area exposures are necessary.",
author = "Boone, {John M} and Seibert, {J Anthony}",
year = "1994",
doi = "10.1118/1.597264",
language = "English (US)",
volume = "21",
pages = "1541--1545",
journal = "Medical Physics",
issn = "0094-2405",
publisher = "AAPM - American Association of Physicists in Medicine",
number = "10",

}

TY - JOUR

T1 - An analytical edge spread function model for computer fitting and subsequent calculation of the LSF and MTF

AU - Boone, John M

AU - Seibert, J Anthony

PY - 1994

Y1 - 1994

N2 - The previous work of Yin, Giger, and Doi [Med. Phys. 17, 962-966 (1990)] demonstrated that using a computerized fit of an analytic line spread function to experimentally measured data is very useful for determining the presampling modulation transfer function of an imaging system. In this report, the work of Yin et al. is extended to include an analytic expression for the edge spread function (ESF). By fitting experimentally determined edge spread function data to the analytical expression, the normalized line spread function (LSF) and the normalized modulation transfer function (MTF) can be easily calculated from four ESF fit coefficients. The extension from the line spread function to the edge spread function should be valuable in cases where slit measurements are impractical, for example, in very high resolution imaging systems where the required slit dimensions become impractically small, or in measurements of the transfer properties of scattered radiation or off-focus radiation, where large area exposures are necessary.

AB - The previous work of Yin, Giger, and Doi [Med. Phys. 17, 962-966 (1990)] demonstrated that using a computerized fit of an analytic line spread function to experimentally measured data is very useful for determining the presampling modulation transfer function of an imaging system. In this report, the work of Yin et al. is extended to include an analytic expression for the edge spread function (ESF). By fitting experimentally determined edge spread function data to the analytical expression, the normalized line spread function (LSF) and the normalized modulation transfer function (MTF) can be easily calculated from four ESF fit coefficients. The extension from the line spread function to the edge spread function should be valuable in cases where slit measurements are impractical, for example, in very high resolution imaging systems where the required slit dimensions become impractically small, or in measurements of the transfer properties of scattered radiation or off-focus radiation, where large area exposures are necessary.

UR - http://www.scopus.com/inward/record.url?scp=0028020650&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028020650&partnerID=8YFLogxK

U2 - 10.1118/1.597264

DO - 10.1118/1.597264

M3 - Article

C2 - 7869985

AN - SCOPUS:0028020650

VL - 21

SP - 1541

EP - 1545

JO - Medical Physics

JF - Medical Physics

SN - 0094-2405

IS - 10

ER -