A simple method for measuring MTF in direct digital intraoral radiography. Technical note

William D. McDavid; Ulf Welander; Gerard C.H. Sanderink; S. Brent Dove; Gunilla Tronje

doi:10.1016/0030-4220(94)90099-X

A simple method for measuring MTF in direct digital intraoral radiography. Technical note

William D. McDavid, Ulf Welander, Gerard C.H. Sanderink, S. Brent Dove, Gunilla Tronje

Comprehensive Dentistry

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

8 Scopus citations

Abstract

Conventional methods for measuring the modulation transfer function require the exposure of a narrow slit or straight edge followed by computationally intense data analysis. An alternative method applicable to digital systems uses the standard deviation of gray levels within different frequency regions of a bar pattern. To verify that this method gave reliable results, measurements performed for two systems for intraoral radiography with the use of this method have been compared with modulation transfer function values calculated from Fourier transformations of line spread functions measured for the two systems. The almost identical results confirm the consistency of both sets of modulation transfer function measurements and demonstrate the utility of the bar pattern method for performing rapid measurements.

Original language	English (US)
Pages (from-to)	802-805
Number of pages	4
Journal	Oral Surgery, Oral Medicine, Oral Pathology
Volume	78
Issue number	6
DOIs	https://doi.org/10.1016/0030-4220(94)90099-X
State	Published - Dec 1994

ASJC Scopus subject areas

Pathology and Forensic Medicine
Dentistry(all)

Access to Document

10.1016/0030-4220(94)90099-X

Cite this

@article{926f9f78141e4398becb87018362a954,

title = "A simple method for measuring MTF in direct digital intraoral radiography. Technical note",

abstract = "Conventional methods for measuring the modulation transfer function require the exposure of a narrow slit or straight edge followed by computationally intense data analysis. An alternative method applicable to digital systems uses the standard deviation of gray levels within different frequency regions of a bar pattern. To verify that this method gave reliable results, measurements performed for two systems for intraoral radiography with the use of this method have been compared with modulation transfer function values calculated from Fourier transformations of line spread functions measured for the two systems. The almost identical results confirm the consistency of both sets of modulation transfer function measurements and demonstrate the utility of the bar pattern method for performing rapid measurements.",

author = "McDavid, {William D.} and Ulf Welander and Sanderink, {Gerard C.H.} and Dove, {S. Brent} and Gunilla Tronje",

year = "1994",

month = dec,

doi = "10.1016/0030-4220(94)90099-X",

language = "English (US)",

volume = "78",

pages = "802--805",

journal = "Oral Surgery Oral Medicine and Oral Pathology",

issn = "2212-4403",

publisher = "Elsevier USA",

number = "6",

}

TY - JOUR

T1 - A simple method for measuring MTF in direct digital intraoral radiography. Technical note

AU - McDavid, William D.

AU - Welander, Ulf

AU - Sanderink, Gerard C.H.

AU - Dove, S. Brent

AU - Tronje, Gunilla

PY - 1994/12

Y1 - 1994/12

N2 - Conventional methods for measuring the modulation transfer function require the exposure of a narrow slit or straight edge followed by computationally intense data analysis. An alternative method applicable to digital systems uses the standard deviation of gray levels within different frequency regions of a bar pattern. To verify that this method gave reliable results, measurements performed for two systems for intraoral radiography with the use of this method have been compared with modulation transfer function values calculated from Fourier transformations of line spread functions measured for the two systems. The almost identical results confirm the consistency of both sets of modulation transfer function measurements and demonstrate the utility of the bar pattern method for performing rapid measurements.

AB - Conventional methods for measuring the modulation transfer function require the exposure of a narrow slit or straight edge followed by computationally intense data analysis. An alternative method applicable to digital systems uses the standard deviation of gray levels within different frequency regions of a bar pattern. To verify that this method gave reliable results, measurements performed for two systems for intraoral radiography with the use of this method have been compared with modulation transfer function values calculated from Fourier transformations of line spread functions measured for the two systems. The almost identical results confirm the consistency of both sets of modulation transfer function measurements and demonstrate the utility of the bar pattern method for performing rapid measurements.

UR - http://www.scopus.com/inward/record.url?scp=0028718439&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028718439&partnerID=8YFLogxK

U2 - 10.1016/0030-4220(94)90099-X

DO - 10.1016/0030-4220(94)90099-X

M3 - Article

C2 - 7898914

AN - SCOPUS:0028718439

VL - 78

SP - 802

EP - 805

JO - Oral Surgery Oral Medicine and Oral Pathology

JF - Oral Surgery Oral Medicine and Oral Pathology

SN - 2212-4403

IS - 6

ER -

A simple method for measuring MTF in direct digital intraoral radiography. Technical note

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this