Experimental Methodology to Measure the Veiling Glare Limit for Detection Tasks in High-Dynamic-Range Displays

摘要

We describe an experimental methodology for quantifying the effect of veiling glare in high-dynamic-range displays for simple detection tasks using a sensitivity experiment. A Gaussian spot was located on white noise image backgrounds indicated with dark hairline markers and a ring was added to the image as the veiling glare source. A double random staircase technique with one-image-at-a-time paradigm was used to estimate intensity thresholds using published methods. Observer gaze position was recorded in real-time during the experiments and used to provide auditory feedback to ensure fixation on the region where the signal might be present and minimize significant changes in adaptation that would affect the thresholds.