Canon XF305 백서 - 페이지 3
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Interaxial separation is the distance
between the centers of two camera
lenses. The human interocular separation
is an important constant stereographers
use to make calculations for interaxial
separation. Beware that Interaxial
separation is often incorrectly referred to
as "Interocular" and vise-versa. In the
professional world of stereoscopic
cinema it has become the norm to refer
to interaxial separation as "i.o. " even
though it is the incorrect term.
Binocular Vision, Retinal Disparity and Parallax
Binocular Vision simply means that two eyes are used in the vision system.
Binocular Vision is very important to most mammals (including humans)
because it allows us to perceive depth at close range.
Try this: Hold one nger next to your ear. Now stretch your other arm out
straight and hold up another nger. Now bring your two ngers together
and touch the tips together. Is was easy right? Now repeat the same
procedure but close one eye. Were you able to touch your ngers
together on the rst try? Now you know how important binocular vision
is at close range.
When we look around at objects at different distances from us the images
of those objects will be projected on our retinas in slightly different
locations for each eye. Our brain can interpret this "Retinal Disparity" and
help us determine depth.
When we shoot 3D with two cameras from slightly different positions the
same thing happens; each camera's sensor registers the objects in the
scene in slightly different horizontal positions. We call this difference
"parallax. "
XF300/305 Whitepaper
Tim Dashwood
Interaxial Separation
Eyeballs converged
on center object
Stereoscopic 3D
2