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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258 Chapter 8
Perceptual Issues
Figure 8.14
Hyperacuity provides highly sensitive position, or phase, discrimination but no
greater ability to resolve fine detail.
is possible to discriminate the non-co-linearity of two thick, abutting lines to a res-
olution of 2 to 5 seconds of arc (referred to as
vernier acuity).
This effect plays an
important role in the visibility of aliasing artifacts in computer images. The question
therefore arises: need we account for hyperacuity in a perceptual model for guiding
LOD?
It is believed that hyperacuity is caused by differences in the mean distribution
of light sampled over ...
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