The varying effects of ambient lighting on low contrast detection tasks

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

AIM: The aim of this study was to determine if there is a significant difference between the detection of low-contrast objects on 1MP review monitor and 3MP primary monitor. METHOD: The monitors compared were a 1MP NEC Multisync 1980SXi and a 3MP Barco Coronis MFGD 3420. The low-contrast detectability of these monitors was compared at a high ambient light setting (73 lx) equivalent to that of a ward or intensive care unit in the clinical setting and a low setting (20 lx) which reflected that used in reporting rooms in standard practice. The comparison was made using a CDRAD test tool and visualisation of nasogastric tubes and a central line. RESULTS: Image quality results for both the psychophysical and diagnostic performance test were substantially higher for the 3MP monitor than those obtained for the 1MP. Significant differences p≤0.000 existed between the IQF results for the 2 monitors. Image quality results were higher at the lower ambient light setting for both monitors. CONCLUSION: Contrast visualisation is significantly improved through the use of primary monitors. Review monitors are adequate for the visualisation of lines an NG tubes in low and high light settings.

Original languageEnglish
Title of host publicationMedical Imaging 2010
Subtitle of host publicationImage Perception, Observer Performance, and Technology Assessment
DOIs
Publication statusPublished - 2010
Externally publishedYes
EventMedical Imaging 2010: Image Perception, Observer Performance, and Technology Assessment - San Diego, CA, United States
Duration: 17 Feb 201018 Feb 2010

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7627
ISSN (Print)1605-7422

Conference

ConferenceMedical Imaging 2010: Image Perception, Observer Performance, and Technology Assessment
Country/TerritoryUnited States
CitySan Diego, CA
Period17/02/1018/02/10

Keywords

  • ambient lighting
  • contrast detail resolution
  • Primary monitors
  • review monitors

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