Abstract
Luminance and color performance are routinely evaluated as part of acceptance testing of displays used in diagnostic radiology. Previous work has indicated that as some diagnostic liquid crystal displays (LCDs) increase in backlight hours (BLH), the luminance measured with an external luminance meter exceeds the luminance reported by the manufacturer’s built-in meter. The purposes of this work were as follows: first, to characterize several luminance and color performance characteristics for 23 Barco Coronis Fusion 6-MP MDCC 6230 color displays and, second, to provide initial data for a longitudinal study evaluating changes in luminance and color performance as BLH increase. Grayscale display conformance and maximum luminance were evaluated using a calibrated luminance meter and AAPM Task Group 18 test patterns, and agreement between target and measured luminance was calculated. Luminance uniformity was evaluated by calculating maximum luminance deviation. Color point and color uniformity were evaluated using a spectrophotometer, and the radial color distances between the corners and center of the display were calculated. Above 3 cd/m2, there was good agreement between the target and measured luminance. At the maximum luminance, the mean difference was less than 1 %. The mean maximum luminance deviation for these displays was 10.40 ± 2.38 %. Color point was observed to be very consistent between displays with mean values of u′ and v′ of 0.187 ± 0.002 and 0.474 ± 0.004, respectively. Among all displays, maximum radial color distance had a mean value of 0.003 ± 0.001. These data provide a baseline for the acceptance of future displays as well as for longitudinal studies of luminance and color performance.
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References
Silosky M, Marsh RM: Constancy of built-in luminance meter measurements in diagnostic displays. Med Phys 40(12):121902, 2013
Smith T, Guild J: The C.I.E. colorimetric standards and their use. Trans Opt Soc 33(3):73–134, 1931
American Association of Physicists in Medicine, “Assessment of display performance for medical imaging systems,” AAPM On-line Report No. 3 (AAPM, College Park, MD, 2005), see www.aapm.org
Harrington RE: Effect of color temperature on apparent brightness. J Opt Soc Am 44(2):113–116, 1954
Walz-Flannigan A, Stekel S, Weber H, Lanners D, Jonsgaard R, Peterson T, Langer SG: Aging and Quality Control of Color LCDs for Radiologic Imaging. J Digital Imaging 24(5):828–832, 2011
Pauli H: Proposed extension of the CIE recommendation on ‘uniform color spaces, color difference equations, and metric color terms. J Opt Soc Am 66(8):866–867, 1976
Samei E: Technical and psychophysical considerations for digital mammographic displays. Radiographics 25(2):491–501, 2005
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Silosky, M., Marsh, R.M. Characterization of Luminance and Color Properties of 6-MP Wide-Screen Displays. J Digit Imaging 29, 7–13 (2016). https://doi.org/10.1007/s10278-015-9811-7
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DOI: https://doi.org/10.1007/s10278-015-9811-7