July 2002
Intermediate to advanced
432 pages
18h 48m
English
book
Level of Detail for 3D Graphics
by David Luebke, Martin Reddy, Jonathan D. Cohen, Amitabh Varshney, Benjamin Watson, Robert Huebner
Content preview from Level of Detail for 3D Graphics
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8.4 Measuring Visual Sensitivity 263
a model. The human visual system is sensitive to motion, particularly in the pe-
ripheral field where the motion-sensitive rods dominate. This may have developed
as an evolutionary need to quickly detect prey (or predators!) moving around us.
In any case, we are highly adapted to detect flicker
(flicker sensitivity)
in our pe-
ripheral field, and we possess a reflex reaction to turn toward any such sharp vi-
sual changes. Related to this is an individual's
critical fusion (or flicker) frequency
(CFF), the highest frequency at which the flicker ...
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