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Contrast Sensitivity Functions for HDR Displays
  DOI :  10.2352/issn.2694-118X.2020.LIM-28  Published OnlineSeptember 2020
Abstract

Contrast sensitivity functions (CSFs) characterize the sensitivity of the human visual system at different spatial frequencies. However, little is known about CSFs at luminances above 1000 cd/m2, especially for color. Here, we measured contrast sensitivities at background luminances from 0.02 cd/m2 to 7000 cd/m2 and for three color directions (black-white or achromatic, red-green, and yellow-violet). Stimuli were Gabor patches of various spatial frequencies (0.125 to 6 cpd), displayed on a custom-built high dynamic range display (peak luminance: 15,000 cd/m2). We found that achromatic contrast sensitivity has an inverted U-shape as a function of background luminance, with peak sensitivity at 200 cd/m2, while red-green and yellow-violet contrast sensitivities were monotonic functions of background luminance, saturating at 200 cd/m2. Based on these measurements, we developed a model that predicts contrast sensitivity for the average observer. This model is intended for applications in high dynamic range imaging.

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Minjung Kim, Maliha Ashraf, María Pérez-Ortiz, Jasna Martinovic, Sophie Wuerger, Rafał K. Mantiuk, "Contrast Sensitivity Functions for HDR Displaysin Proc. IS&T London Imaging Meeting 2020: Future Colour Imaging,  2020,  pp 44 - 48,  https://doi.org/10.2352/issn.2694-118X.2020.LIM-28

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Copyright © Society for Imaging Science and Technology 2020
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London Imaging Meeting
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