Re: weighting depth clues

[T3D Jim Crowell <crowell@xxxxxxxxxxxxxxx>]

Richard Young wrote:
[snip]

>Jim Roberts (TECH-3D 181) refers to "Ken Dunkley's pinhole arrangement" in
>which a 3D effect was gotten from 2D shots. One trouble
>with seeing depth in 2D photographs or paintings is that both our bincoular
>cues (stereo vision and convergence) and one monocular cue (accommodation)
>tell our brains the image is flat, contradicting the monocular cues for
>space perception (relative size, interposition, linear perspective, aerial
>perspective, monocular movement parallal, light and shade). This
>contradiction can be corrected by a special eyepiece that sends the
>identical image to both eyes (biocular viewing(. When 2-D paintings or
>photographs are viewed with this device, the depth effects are enormously
>increased. (Jan Koenderinck showed me such a device he built when I
>recently visited him in the Netherlands).

This is the gadget I was referring to in the post about the 3-DVG;  I'd
understood from a talk of kernderink's that it was an antique made by Zeiss
in the last century, but maybe he meant it was a replica.  Either way, it
sounds like a cool device, I'd love to get my hands on one...

-Jim C.


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