We
interact in a world that we perceive to have three physical
dimensions. It has width, height, and depth; and we perceive all of
these dimensions, but how exactly do we perceive them? We use lots of
clues, clues like tactile and visual stimuli. But how do these clues
give us the perception of three dimensions?
Well,
it's obvious that by moving our hands in three dimensions we can feel
a cube in three dimensions, but how exactly is it that we see a cube
in three dimensions?
With
two eyes, we are able to triangulate what we see and gain an
understanding of its distance away from us. This is a simplified
description of how our
vision
works. We also use other visual clues to
perceive
depth.
Amazingly,
because we are so used to using our eyes in this way, we are able to
use our knowledge of human vision to view three dimensional objects
using two-dimensional surfaces. Such visualization requires the use
of certain tools and techniques in order to trick the mind into
perceiving 2D information in the third dimension. This website offers
an introduction to some of the most interesting technologies and
possibilities of 3D imaging. By exploring ways in which it is
possible to capture higher-dimensional information in a
lower-dimensional form, we continue our search within, through, and
beyond the third dimension.
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