[photo-3d] 1/30 rule for video!?

[boris@xxxxxxxxxxxx]

Sergio Baldissara wrote to the glamourphoto group:

>Sorry for my (perhaps non pertinent) intrusion... can I know what videos
>you're talking about and what stereo method was employed?
...
>THE MAXIMAL DEVIATION BETWEEN 2 MATCHING POINTS SHOULD NOT BE GREATER THAN
>1/30 OF BASE (HORIZONTAL SIDE) OF THE FRAME (or screen.. say 2° parallax)
>anyway if you want formulas...  http://home.mira.net/~kiewavly/bases.html ;
>is it possible the movie-makers ignored such simple rules?

Harold Baize was talking about videos using frame alternate format.  But I
believe the discussion related to anaglyph as well.

Sergio, not another rule flattening out what might have been good depth
pictures?  1/30 sound too small!  On my monitor, which is 30cm wide, you
are recommending a deviation of no more than one centimeter.

Is the recommendation for this maximum deviation based on any physiological
principles?  Does the fact that motion will be shown recommend the use of
smaller deviations in a picture?

I would think that for video, because of its lower resolution, more
deviation would be necessary for a reasonable range of depth to be
apparent.

Boris


- Science is the part of culture that rubs against the world.
-
-                                     Stanislaw Lem, _His Master's Voice_

Boris Starosta                        boris@xxxxxxxxxxxx
Stereoscopic Art & 3-D Photography    http://www.starosta.com
usa - 804 979 3930                    http://www.starosta.com/3dshowcase



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