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Evan
10-31-2009, 08:39 AM
I have a particular interest in 3D imaging. I have played around with generating 3D images by various means including completely by hand retouching a single 2D image. Here are some examples. The first three images started out as ordinary flat 2D images. I have manipulated the images to produce a false 3D aspect. In particular, the 3D version of my recent Orion astrophoto is purely speculative and not based in any observation. We are not able to detect any 3 dimensional properties of an object that far away even with the best telescopes.

All of the following images are intended for crossed eye viewing. If you aren't familiar with this you first must be able to cross your eyes at will. You then look at the center of the pair of images and cross your eyes until you see three images; one on the left and on the right and in the centre a third image that is the two combined. That is the image that has the full three dimensional aspect. Concentrate on it and ignore the other two images to either side.

http://ixian.ca/pics6/marestails3d.jpg


http://ixian.ca/pics6/aurora3d.jpg


http://ixian.ca/pics6/m34_3d.jpg

This next image is not from a photo but is generated via a computer program from digital terrain altitude data from the Canadian Geophysical Service map database. It is the view from the top of Mt. Robson in Northern British Columbia looking down toward the southwest. All of the elements in the image are created by me as textures and are then applied as I chose to the blank 3D form of the landscape. I used textures obtained by photographing actual scenery in the locale of Mt. Robson and I try to make even the colour and orientation of the strata as accurate as possible.

http://ixian.ca/pics6/robson_rock3d.jpg

Evan
10-31-2009, 08:41 AM
This one however is not synthetic. This is an actual 3D photograph taken in front of my house looking at the sunrise through mist in the trees.

http://ixian.ca/pics6/rays_3d.jpg

hitnmiss
10-31-2009, 08:48 AM
Very nice Evan, the last two really stand out for me.

deanq
10-31-2009, 11:12 AM
That is totally amazing! I didn't know I could do that! The detail is scary, and I could focus on different parts of the 3D picture. The mind is an amazing thing.
Thanks for sharing.

darryl
10-31-2009, 01:36 PM
Now I can't see straight :)

John Stevenson
10-31-2009, 01:50 PM
Bugger it, can't do it, you must need good eyesight to go bozeyed. :rolleyes:

.

j king
10-31-2009, 02:15 PM
Im glad someone else cant see it.One may be a bit clearer..

Evan
10-31-2009, 02:18 PM
My wife can't do it either. I think being near sighted causes a problem when trying to focus crosseyed.

kc5ezc
10-31-2009, 02:24 PM
My wife can't do it either. I think being near sighted causes a problem when trying to focus crosseyed.

Evan: I can't see the 3D aspect without my glasses. One of my eyes sees distance and the other close without glasses. With glasses they similar in perception and the 3D aspect shows up very well in the last two pictures.
Well done.
John Burchett
in Byng OK, USA

aostling
10-31-2009, 03:09 PM
Evan,

These really pop! Your view of the sun's rays coming through the trees is the first time I've seen dust in stereo.

I'm quite at a loss to understand how you made the stereo pairs of Mt. Robson, the aurora, and the nebula. It would seem that each pixel would have to be given a specific parallax shift, but that seems an impossible task. Can you share the secret?

Weston Bye
10-31-2009, 03:19 PM
My wife can't do it either. I think being near sighted causes a problem when trying to focus crosseyed.

Not so. I am very nearsighted but can see the 3D images perfectly.

Perhaps most women and some men never indulged in the adolescent practice of pulling amusing faces.

Evan
10-31-2009, 03:48 PM
It's easy Allan. Just make a pair of side by side images and then start using tools in whatever image editing program to shift parts of the image on the right. Shifting to the left makes it appear farther away and to the right is closer. If you can stand to keep your eyes crossed as I can then you can see what you are doing as you edit.

BTW, I measured my actual capability to view parallel wall eyed and I can achieve fusion with up to 140 mm separation.

[edit] The Robson image was generated as a stereo pair.

I am working on something special following a comment you made one time Allan. It's a parallel viewing 3D movie. :D

Weston, OK. Scratch one weak hypothesis...

aostling
10-31-2009, 04:47 PM
BTW, I measured my actual capability to view parallel wall eyed and I can achieve fusion with up to 140 mm separation.


That's more than I would have thought possible, but I belief it. For an interocular spacing of 64mm, at a viewing distance of 500mm, this means that each eye is splayed outward 4.3.

I don't see how I could shift portions of an image in my Elements editor, which is simplified Photoshop. That would seem to put pixels on top of pixels. Obviously, I'm missing something here.

topct
10-31-2009, 05:47 PM
"All of the following images are intended for crossed eye viewing."

I don't get the purpose of such a thing.

It seems to work only for those that can cross their eyes?

I can't, so no joy.

John Stevenson
10-31-2009, 05:54 PM
That's more than I would have thought possible, but I belief it. For an interocular spacing of 64mm, at a viewing distance of 500mm, this means that each eye is splayed outward 4.3.



http://images.clipartof.com/small270/12192-Clay-Sculpture-Of-A-Seriously-Mad-Scientist-With-Large-Bug-Eyes-Holding-Test-Tubes-And-Standing-By-Eyeballs-In-A-Lab-Clipart-Picture.jpg

.

dp
10-31-2009, 06:04 PM
Very interesting what happens when you stare them together rather than crossing the eyes. At the size presented it is absolutely at the limit of my ability to stare them into submission :). Especially the clouds - the fore and backgrounds swap places. I'm very impressed with the aurora - it adds another dimension, false though it may be, to an otherwise amorphous scene.

Just measured the images and they're about 1.5" further apart on center than my pupils. I'd better not let my wife watch me do that - she may call an ambulance :)

Evan
10-31-2009, 06:45 PM
Here ya go John. It's a shame you can't see it in stereo. :D

http://ixian.ca/pics6/ms.jpg

j king
10-31-2009, 07:06 PM
LOL you guys are a riot!