Re: [photo-3d] Re: Chromostereopsis

[Ron Beck <rbeck@xxxxxxxx>]

Gabriel,
Looking at your first example, I do see that the red boxes look as
though they're "popping out" of the view.  However, I also note that the
blue boxes are not exactly in line with the red boxes.  The blue boxes
appear to be slightly lower than the red.  Is that true?  Could this
also provide a subtle depth queue (perspective) that the blue boxes are
"behind" the red?

Just another thought on the subject.  This appears more apparent to me
in your second example.

Ron

Gabriel Jacob wrote:
> The following link points to a stereo pair consisting of alternating
> red and blue boxes arranged in a 3x3 array.
> http://groups.yahoo.com/group/photo-3d/files/3d/chroma.gif
> Looking at it with the unaided eye and not fusing the images, one
> can easily see  the red boxes seem to be closer than the blue boxes.
> This is a stereo depth cue and is due to chromatic aberrations in the
> eye refracting the different colors to varying degrees.
> 
> It's interesting to note, you get different results using different colored
> boxes. This is due to the different color fringing . In the following
> stereo pair,
> http://groups.yahoo.com/group/photo-3d/files/3d/chroma2.gif
> with the unaided eye and not fusing, the red box will be closer than
> the blue box. The two white boxes will be in the same plane.