3D "micro" and "macro"

A forum to ask questions, post setups, and generally discuss anything having to do with photomacrography and photomicroscopy.

Moderators: MacroMike, nzmacro, Ken Ramos, twebster, S. Alden

Locked
Charles Krebs
Posts: 1200
Joined: Tue Jul 13, 2004 10:50 am
Location: Issaquah, WA USA

3D "micro" and "macro"

Post by Charles Krebs »

Over in the microscopy section we've veered a bit onto the subject of 3D in micro and micro. I felt it more appropriate if we entertained this subject in the techniques section so I'll start...

Harry Yosh showed an interesting way of making stereo pairs from a single image. I haven't looked at the technique yet, but it appears to rely on analyzing "out-of-focus" areas, so it will be interesting to see how it works with images that are "sharp" throughout. Here is that topic:

http://www.photomacrography1.net/forum/ ... php?t=3975

Also, to get the ball rolling I have posted 4 crossed pairs I recently made up here:

http://www.krebsmicro.com/3Dstacks/index.html

Cross-eyed viewing takes some practice if it is new to you, but it is quite dramatic once mastered.

rjlittlefield
Posts: 727
Joined: Fri May 06, 2005 11:57 pm
Location: Richland, WA, USA
Contact:

Post by rjlittlefield »

Charlie, thanks for starting a thread in this forum. I had the same thought, but was not so proactive as you.

I agree with your comment about crossed-eye versus parallel. Your amoeba looks much better to me with the images reversed.

For viewing stereo, I have become very fond of a program called StereoPhoto Maker (SPM, see http://stereo.jpn.org/eng/stphmkr/). It allows swapping left/right at the click of a button, and it integrates with Microsoft's Internet Explorer browser so the SPM viewer can be accessed directly from a right-click menu.

For high resolution stereo, such as appear on some of my web pages (e.g. here, here, and here), SPM also provides interactive zooming to the full image resolution. I have found this feature to be mildly addictive.

--Rik

Harry Yosh
Posts: 32
Joined: Fri Dec 16, 2005 10:08 pm

Post by Harry Yosh »

Merry Christmas!

"Harry Yosh showed an interesting way of making stereo pairs from a single image. I haven't looked at the technique yet, but it appears to rely on analyzing "out-of-focus" areas, so it will be interesting to see how it works with images that are "sharp" throughout."

Thank you for introducing my synthesized stereographs. Based on the part of his photos shown in the following thread; http://www.photomacrography1.net/forum/ ... php?t=4056, I synthesized new stereograph for Philodina as shown below (view: crossed eyes / with permission by Charlie.)
Image
Also I made the wiggling animation for that image as,
Image
For the detail of the software used for synthesizing stereograph, please visit here.

Harry Yosh
Posts: 32
Joined: Fri Dec 16, 2005 10:08 pm

Post by Harry Yosh »

The following stereograph was synthesized based on the image introduced in the thread; http://www.photomacrography1.net/forum/ ... 0283#20283 (view: parallel eyes / with permission by Myriophyllum).
Image
(software: Stereographer)

rjlittlefield
Posts: 727
Joined: Fri May 06, 2005 11:57 pm
Location: Richland, WA, USA
Contact:

Post by rjlittlefield »

For me this last image pair produces very little stereo effect. Clicking quickly between parallel and crossed views in SPM produces little change in appearance, except that the label on the scale bar does pop obviously from front to back.

--Rik

Harry Yosh
Posts: 32
Joined: Fri Dec 16, 2005 10:08 pm

Post by Harry Yosh »

rjlittlefield wrote:For me this last image pair produces very little stereo effect. Clicking quickly between parallel and crossed views in SPM produces little change in appearance, except that the label on the scale bar does pop obviously from front to back.

--Rik
Oh, sorry... I made an wiggling stereograph for it. How about that?
Image

rjlittlefield
Posts: 727
Joined: Fri May 06, 2005 11:57 pm
Location: Richland, WA, USA
Contact:

Post by rjlittlefield »

Now the whole ball wiggles mostly as a unit, and the label on the scale bar wiggles most of all. Apparently this image is not such good material for your technique. It worked much better on Charlie's amoeba with the little ciliates.

This effect has raised a question about the shape of the cyst. See my posting at http://www.photomacrography1.net/forum/ ... hp?p=20283.

--Rik

Harry Yosh
Posts: 32
Joined: Fri Dec 16, 2005 10:08 pm

Post by Harry Yosh »

rjlittlefield wrote:Now the whole ball wiggles mostly as a unit, and the label on the scale bar wiggles most of all. Apparently this image is not such good material for your technique. It worked much better on Charlie's amoeba with the little ciliates.

This effect has raised a question about the shape of the cyst. See my posting at http://www.photomacrography1.net/forum/ ... hp?p=20283.

--Rik
I read the comment shown in the above thread. Mmm... then that cyst might have been flattened by pushing the cover glass...

I attached the stereograph of Acanthocephala (original image: by Dr. N. Campbell). They say as the species it is close to the rotifers.
Image

Harry Yosh
Posts: 32
Joined: Fri Dec 16, 2005 10:08 pm

Post by Harry Yosh »

The following stereograph was synthesized based on the image introduced in the thread; http://www.photomacrography1.net/forum/ ... 0411#20411 (with permission by Ron).
Image
(software: Stereographer)

Harry Yosh
Posts: 32
Joined: Fri Dec 16, 2005 10:08 pm

Post by Harry Yosh »

The following stereograph was synthesized based on the image introduced in the thread; http://www.photomacrography1.net/forum/ ... php?t=4050 (with permission by gslaten).
Image
(software: Stereographer)

Harry Yosh
Posts: 32
Joined: Fri Dec 16, 2005 10:08 pm

Post by Harry Yosh »

The following stereograph was synthesized based on the image introduced in the thread; http://www.photomacrography1.net/forum/ ... php?t=3799 (with permission by Wim).
Image
(software: Stereographer)

User avatar
twebster
Site Admin
Posts: 1518
Joined: Mon Apr 19, 2004 10:55 pm
Location: Phoenix "Valley of the Sun", Arizona, USA

Post by twebster »

Hello Harry, :D

I think the stereo software produces some interesting images. However, this topic is turning into an image gallery. We have image galleries in which to post images. Unless there is any further discussion needed on technique I am going to lock this topic. Please post future images in the image galleries.

Best regards, :D
Tom Webster
Administrator

Phoenix "The Valley of the Sun", Arizona, USA

Think about this...maybe Murphy is an optimist!!!

Locked