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Luminance levels were chosen in the mesopic domain relevant for road lighting at night.
Higher luminance levels produced significantly reduced reaction times for all stimulus locations and directions (mean reduction: 16 ms; P<0.0001).
Here, we investigated nonlinearities of blood-oxygenation-level-dependent (BOLD) signals following visual stimulation of 5 to 1000 ms duration at two different luminance levels in human subjects.
Again, by simulations, we show that 'multiplex contrasts' at a single, high-resolution filter scale are sufficient for recovering absolute luminance levels.
We studied both tonic pupil diameter and phasic pupil response under low (1-back) and high (2-back) working memory load and two luminance levels (gray and white).
We use two ray tracing engines, Radiance and Accelerad, on scenes illuminated by a mathematically defined sky model or by recorded outdoor luminance levels from photographs.
For medium luminance levels, the visibility threshold is generally small.
* Screen type and size * Projector model * Aspect ratio * Throw ratio calculator * Geometry settings * Viewing angle map * Luminance levels.
Flickering can be observed as significant and high-frequency alternated variation between different luminance levels [11].
Luminance levels can change dramatically over time and depending on the place.
The evaluation of luminance spatial uniformity at two distinct luminance levels across the display faceplate using TG18-UNL test patterns should yield nonuniformity coefficients smaller than 30%.
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