Tennis, Anyone?

 3D Movies, Running and Exercising, Stereoscopic 3D, Videos and Photos  No Responses »
Oct 252012
 
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Since I have officially retired from teaching stereoscopic theory, I am aggressively looking for other things to do. I found these tennis courts right down the street, just a few blocks away from home. They are at a high school, but I was told that the public can use them.

This video has close to 1/30 (3.3%) Net Stereoscopic Deviation (NetD), which is the only amount of depth that can produce a perfectly cubic stereoscopic illusion, viewable with any horizontal field of view (from any seat).
.5% positive parallax is used to avoid eye divergence on any screen up to 40 feet wide.
The ghost-free floating window eliminates left and right edge violations.

Watch this video in 2D or 3D by clicking on the “3D” button under the video and selecting your options, e.g., “Turn off 3D”.
Detailed instructions and help via YouTube: http://support.google.com/youtube/bin/static.py?hl=en&page=guide.cs&guide=1680728&topic=1683835

You Are Grounded!

 3D Movies, Stereoscopic 3D, Videos and Photos  No Responses »
Oct 172012
 
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If you want that perfectly cubic stereoscopic 3D illusion (and you know you do), then the ground (or floor) is your best friend. The closest point on the ground becomes the designated near point.
The Bloggie 3D camera, however, with its less-than-one-inch separation between left and right lenses, has to get so close to the ground in this case, that it’s a strange-looking perspective, unless you are filming shoes or cats or something. :) If you have a 3D rig with a wider stereo base, then you can get much higher up off the ground into a more-normal position.
This clip is uncut, and the edges of the door jam violate the stereoscopic formula in a couple of places (I was shooting out the door. :) .
I am still trying to figure out how to get a smooth pan without getting involved in a science project, i.e., by making a dolly or something. I put the camera on a Gorillapod, which has magnetic feet, attached that to a metal cookie sheet, then slid it across a piece of cloth.
Some of the sounds you are hearing are air-conditioners, since it’s 97 degrees outside (on the 17th of October).
I’m using .5% positive parallax, again, so I can watch it on a 40 foot wide screen and not have to diverge my eyes.
Also, I used my ghost-free, keystoned border, because the chicks really dig it. ;/

Chicks Dig Colors! Stereoscopic Rehabilitation: Positive Parallax

 3D Movies, Stereoscopic 3D, Videos and Photos  No Responses »
Oct 162012
 
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Concluding my stereoscopic 3D research on positive parallax, here is one last example of a perfectly cubic illusion with close to 1/30 (3.3%) net object deviation presented on the screen with close to .5% positive parallax.
This amount of positive parallax will introduce no eye divergence on screens up to about 40 feet wide.
This image is 14 blocks deep, and the point of zero parallax (at the screen) is about 9 blocks deep. That’s close enough to become another of many 1/3rd Stereoscopic Rules to me, for the sake of being easy to remember. This ain’t rocket science, baby! :)
Some post zoom was added just for interest, and a ghost-free background was also used. Chicks dig colors, so I use them!

The Far Side of the Stereoscopic Hill

 3D Movies, Stereoscopic 3D, Videos and Photos  No Responses »
Oct 112012
 
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Tune up your banjo, baby. :)
This stereoscopic 3D movie clip has .5% (1/2 of 1%) positive parallax (left/right eye disparity beyond the screen), which introduces zero eye divergence on any screen size up to about 40 feet wide (40 ft * .5% = 2.4 inches).
The near point is a little more than 3 feet away from the camera, and the far point is about 15 miles away.
The stereo base (interaxial) is a bit less than 1 inch of separation.
The stereoscopic net deviation (NetD) is close to 3%, which creates a cubic illusion (2.8% to 3.8%, with zero Z-axis stretch or compression) with any horizontal field of view (hFOV), i.e., when viewed from any seat in the house or theater on any size screen.
Zero parallax (apparent depth at the screen) is about 13 feet away from the camera.
Shot with a Sony Bloggie 3D camera.

Locked Up In A Stereoscopic 3D Dungeon

 3D Movies, Stereoscopic 3D, Videos and Photos  1 Response »
Oct 102012
 
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Since we are locked up in a stereoscopic 3D dungeon and the key has been thrown away, and we are forced to use 2.8% to 3.8% stereoscopic net deviation to create a cubic illusion from any seat in the house (any horizontal field of view), we need to use every possible trick in the book to make our 3D movies look interesting.
Also, we don’t want to have to make a different movie for every screen size, and we have to limit the amount of positive parallax (separation of left and right eyes) to 2.5 inches, since diverging the eyes could be uncomfortable.
If we move the camera around to create interest, how slow should we move the camera when dollying, panning or tilting?
This footage was shot with a Sony 3D Bloggie camera with close to a one inch stereo base (interaxial, i.e., the separation of the left and right lenses), so the near point needs to be close to 32 inches away from the camera to create a cubic illusion (with the far point at infinity). There is close to .5% positive parallax, which will eliminate eye divergence on screens up to about 40 feet wide (40 ft * .5% = 2.4 inches).

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