Observer performance using CRT monitors with different phosphors

Hans Roehrig, Elizabeth A Krupinski, Mahesh Sivarudrappa

Research output: Chapter in Book/Report/Conference proceedingChapter

6 Citations (Scopus)

Abstract

The goal of this study was to compare observer performance on two monitors - one with a P45 and the other with a P104 phosphor. Phosphors have distinctly different physical properties that, among other things, affect the noise properties of the display. Differences in noise have an effect on the signal-to-noise ratio, and hence may have a significant affect on observer's detection performance. A complete physical analysis was done on the 2 monitors. A JND study was conducted to measure observer performance. A series of grating patterns was generated for display on the 2 monitors. Observers were instructed to report whether the pattern was vertical, horizontal or blank. Observer performance with the P45 was better than with the P104 phosphor. This result was supported those found in the physical evaluation, that showed poorer results on various parameters. The results indicate that the type of phosphor does affect the physical aspects, which in turn affects observer performance. Two clinical areas in particular that might be affected by phosphor differences are nodule detection in chest images and mass detection in mammograms, since low contrast targets will be most affected by the noise differences (SNR) in different monitor phosphors.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages217-224
Number of pages8
Volume3663
StatePublished - 1999
EventProceedings of the 1999 Medical Imaging - Image Perception and Performance - San Diego, CA, USA
Duration: Feb 24 1999Feb 25 1999

Other

OtherProceedings of the 1999 Medical Imaging - Image Perception and Performance
CitySan Diego, CA, USA
Period2/24/992/25/99

Fingerprint

Cathode ray tubes
Phosphors
phosphors
monitors
Display devices
chest
nodules
blanks
Signal to noise ratio
signal to noise ratios
Physical properties
physical properties
gratings
evaluation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Roehrig, H., Krupinski, E. A., & Sivarudrappa, M. (1999). Observer performance using CRT monitors with different phosphors. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3663, pp. 217-224). Society of Photo-Optical Instrumentation Engineers.

Observer performance using CRT monitors with different phosphors. / Roehrig, Hans; Krupinski, Elizabeth A; Sivarudrappa, Mahesh.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3663 Society of Photo-Optical Instrumentation Engineers, 1999. p. 217-224.

Research output: Chapter in Book/Report/Conference proceedingChapter

Roehrig, H, Krupinski, EA & Sivarudrappa, M 1999, Observer performance using CRT monitors with different phosphors. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3663, Society of Photo-Optical Instrumentation Engineers, pp. 217-224, Proceedings of the 1999 Medical Imaging - Image Perception and Performance, San Diego, CA, USA, 2/24/99.
Roehrig H, Krupinski EA, Sivarudrappa M. Observer performance using CRT monitors with different phosphors. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3663. Society of Photo-Optical Instrumentation Engineers. 1999. p. 217-224
Roehrig, Hans ; Krupinski, Elizabeth A ; Sivarudrappa, Mahesh. / Observer performance using CRT monitors with different phosphors. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3663 Society of Photo-Optical Instrumentation Engineers, 1999. pp. 217-224
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