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Performance characteristics and image fidelity of gray-scale monitors.
Dwyer SJ 3rd, Stewart BK, Sayre JW, Aberle DR, Boechat MI, Honeyman JC, Boehme JM 2nd, Roehrig H, Ji TL, Blaine GJ.
Department of Radiological Sciences, University of California Los Angeles School of Medicine 90024-1721.
Radiographics. 1992 Jul;12(4):765-72
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.
Posted via PubMed for educational and discussion purposes only.
Link to PubMed Reference
Department of Radiological Sciences, University of California Los Angeles School of Medicine 90024-1721.
Radiographics. 1992 Jul;12(4):765-72
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.
Posted via PubMed for educational and discussion purposes only.
Link to PubMed Reference
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