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An Introduction to our common methods of 3D Visualization

The following will introduce you to five types of visualization (without expensive equipment):

  1. Simple 2D representations of 3D information (as with the X, Y, and Z axes below)
  2. Anaglyph 3D, which uses the red/blue 3D glasses
  3. Cross-eyed viewing, where two images are placed side by side and seen as 3D by crossing eyes
  4. Straight-through viewing; reversed from cross-eyed (each eye sees the image directly in front)
  5. Motion (usually rotation) combined with another form of visualization

This gallery is currently dedicated to 3D visualization, but it will always be a place where we put multimedia samples of work.

For the purposes of this gallery, imagine the "error surfaces" below as height fields representing the difference between a model's prediction and the actual result (where Y - height - is the error of a system as parameters X and Z are tweaked for optimization).

     
     
Below: A series of three views of the same error surface. This is produced from a few hundred thousand trials (at different configurations, defined by the X and Z axes) of a support vector machine. The lowest error (defined by the lowest Y) can be found in configurations in the trough at the left of the surface in view #1, the right in #2, and at the far end in #3.
     
     
3D
     

The following two graphics are shown in Anaglyph 3D. They can be viewed using almost any red-blue 3D glasses (like those used for viewing horror movies, comic books, or, apparently, a recent Miley Cyrus Disney special). If you don't have a pair lying around, we can send you one. Click on our logo at right to test your glasses.

3D

 

QPQ Logo

     
[Note: HUGE file (20 MB) ]  

At left, click for a HUGE Quicktime VR file of our logo, which you can manipulate using your mouse in 3D -- QTVR is a great way to explore a 3D dataset quickly.

This format gives by far the most detailed and interactive view but takes a few minutes to download even over broadband.

   

For those without 3D glasses, try the following two methods of seeing stereoscopic images. Both will take some concentration, a minute or so of frustration, and ten seconds of headache for your first attempt; they should quickly become second nature. The images will converge more easily if you move your head slowly back and forth (left/right) as you look at them.

Let us know which method you prefer; we find stare-through to be easier for a quick glance but cross-eyed easier for perfect focus. Note that these are the exact same images, with the left and right logos swapped. Click on either to see as its own page for un-distracted viewing.

   
   
 
Cross-Eyed:

Cross your eyes (focus on a closer object) to get the two images at left to converge.

It may help to stare first at a point approximately ten inches in front of your face (put your finger in the air to have something to focus on); then concentrate on moving the two images together.

     
     
 
Stare-Through:

Stare through the screen (focus on a more distant object) to get the two images to converge.

Start by focusing on a distant object behind the screen; it helps to be somewhat dazed or unfocused as you then move your gaze toward the logos and try to make them merge.

   
   
 

Finally, a simple rotating logo in Anaglyph 3D. Small enough to embed on the page (highly compressed).


             
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