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Performance characteristics and image fidelity of gray-scale monitors.

Authors
  • Dwyer, S J 3rd
  • Stewart, B K
  • Sayre, J W
  • Aberle, D R
  • Boechat, M I
  • Honeyman, J C
  • Boehme, J M 2nd
  • Roehrig, H
  • Ji, T L
  • Blaine, G J
Type
Published Article
Journal
Radiographics : a review publication of the Radiological Society of North America, Inc
Publication Date
Jul 01, 1992
Volume
12
Issue
4
Pages
765–772
Identifiers
PMID: 1636038
Source
Medline
License
Unknown

Abstract

Gray-scale monitors are an essential element of electronic radiology, and their ability to provide images that are perceived to be identical to those available on conventional or laser-printed film is crucial to success of electronic radiology. Image fidelity is measured in physical characteristics (luminance, dynamic range, distortion, resolution, and noise) and with psychophysical techniques, including receiver operator characteristics analysis with clinical images and testing with contrast-detail patterns to determine threshold contrast. Currently, laser-printed images facilitate greater information transfer than does a gray-scale monitor because of their higher absolute luminance (500 ft-L vs 60 ft-L), greater perceived dynamic range, and better spatial resolution. In the near future, the developments of gray-scale monitors with 150-200 ft-L luminance, a display standard based on just noticeable differences, and algorithms to improve similarities between gray-scale display images and laser-printed images will help increase the acceptability of monitors as a means to make primary diagnoses.

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