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Thread: 3D pictures & stereoscopes

  1. #1
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    3D pictures & stereoscopes

    So I went phone shopping for my son the other day and somehow ended up getting myself a new one as well. I ended up with the HTC EVO 3D, which takes 3D pictures. Overall my first impression is it's pretty cool technology, but if you don't have the phone, you can't see the pictures in 3D. Either way, the processor on this phone is about twice that of any other phone they had and I can still take regular pictures with it as well.

    After some research in looking for other ways to view the 3D pictures, I came across some software for converting the 3D file (*.mpo) to a holmes stereoscope picture format.


    Which can be viewed on an antique stereoscope. So off to ebay I went and found one that needed a few repairs, but looks to be in good shape. I also found a couple of sites where they offer kits to build your own, but the one I got has some nicely figured wood on it and I may end up using it for a pattern to make a few more.



    Here's the software I used to convert the file.
    http://stereo.jpn.org/eng/stphmkr/

    A couple of places to buy some viewer parts & kits:
    http://www.berezin.com/3d/holmes.htm
    http://discussion.cprr.net/2005/02/a...kits-gift.html


    An adapter for regular camera to take stereo photos, may have to look at building one for my DSLR:
    http://www.instructables.com/id/Make...Video-Shooter/

    I also found you can use the two images to make an animated GIF using Gimp (My co-worker will kill me if she sees this ).



    No...we didn't have an earthquake here too...
    Last edited by Darren Wright; 08-24-2011 at 08:09 PM.
    Darren

    To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault

  2. #2
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    Pretty cool Gizmo Darren!

    I've done some 3d photos with a regular camera in the past using a little bracket I made that mounts on a tripod. Basically, take a picture, slide the camera to the other side, take another picture. Obviously not for action shots!

    You can also view those images in 3d if you cross your eyes really hard

    Did you see this comic the other day?

    http://xkcd.com/941/

    Programmer - An organism that turns coffee into software.
    If all your friends are exactly like you, What an un-interesting life it must be.
    "A door is what a dog is perpetually on the wrong side of" Ogden Nash


  3. #3
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    Funny cartoons there...got lost for a while reading them.

    Here's the one I bought...will post more pics later when I get it and start to do the repairs. Looks like a mahogany wood to me.

    Attached Thumbnails Attached Thumbnails stereoscope [640x480].JPG  
    Darren

    To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault

  4. #4
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    Here's the method for creating animated gifs in gimp (at the bottom of the page). Can be used for any animated gifs, not just stereoscope pics.

    http://content.photojojo.com/tutoria...o-photography/
    Darren

    To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault

  5. #5
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    So how does the viewing on the cameraphone work?

    I'm assuming no glasses or anything.
    Programmer - An organism that turns coffee into software.
    If all your friends are exactly like you, What an un-interesting life it must be.
    "A door is what a dog is perpetually on the wrong side of" Ogden Nash


  6. #6
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    Congrats on the new phone. I saw one briefly a week or two ago. (The guy running the freight elevator in one of the high rise offices downtown was showing it off as we rode to our destination.) I'm seeing more and more dual processor smart phones. I suspect when my iPhone dies, I'll be looking at one of the Android devices. Then I'll finally be able to view Flash content like a real browser should.

    Cool old stereoscope, too. From the looks of the photos, I don't think it's mahogany. Looks like leopardwood to me.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

    workingwoods.com

  7. #7
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    Hi,

    The old eye doc has to get in his 200 cents worth.

    If you can use both eyes normally is the qualifier for the following: You can look at stereo pictures and get 3-D without a viewer. The pics that require a pair of red and green lensed glasses will look pretty yucky however. Regular stereo color or black and white photos will appear with true depth.

    Remember the fad of pictures that looked like military camouflage until you held your eyes a certain way. Then you saw a 3-D picture. You do the same thing with stereo pictures. One of my patients worked for the County. His job was looking for new, unlicensed, alterations to buildings or property. He looked at stereo pics taken from an aircraft all day. He compared old pics to new.

    The pics were stereo. He A --- B ed them, seeking changes. He did not bother with a stereoscope; he just positioned his eyes correctly to see the depth.

    There are two eye positions that can be used for viewing without an instrument. One is to cross your eyes slightly as though you were looking at a fly that is closer to you than the pics. The other method is to imagine you are looking at a fly that is beyond the pics. Either of these methods will give you three pictures when the eyes are in the correct position. The pic in the middle will be the one with depth.

    If your eyes have a natural tendency to want to cross a little (esophoria), the first way is easiest. If your eyes have a slight tendency to diverge (exophoria), the second way is best. If you have amblyopia ("Lazy eye") or have a tropia (an eye turns and stays in, out, up or down in relationship to the other eye) you will not get the depth.

    Us old people remember the "Range Finders" of WWII. They were a pair of binoculars with the objective lenses 2 or 3 feet apart. They intensified the the stereopic clues. There are seven clues for determining how far away an object is located. The one involving stereopsis is worth more than the other six combined.

    You can view your, non-stereo, TV in a pseudo 3-D. Just hold a non-prescription dark lens in front of one eye. The extra nano-second (or whatever time period it is) delay caused by the dark lens creates a depth perception concept in the brain. Again, I say, it only works if you have two normally functioning eyes (wearing glasses is not considered to be abnormal functioning).

    Have fun,

    Enjoy,
    Jim

    Oh yes, If you get a headache viewing 3-D pictures of any kind, you probably need to do some eye coordination exercises.
    Last edited by Jim C Bradley; 08-25-2011 at 04:58 AM. Reason: Add a (
    First of all you have to be smarter than the machine.
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  8. #8
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    Brent, The camera has two actual cameras about 1 1/2" apart. The screen's crystals align to give a Lenticular 3D effect, where each eye is seeing a different image, one take from the left lens, the other from the right. This can be turned off to align the crystals for normal display. It's pretty cool to see a 3d movie on it too (came with Green Hornet), but don't think I'll pay full price to see one on this size of screen.

    Vaughn, you may be right. I should have recognized it, I have some sitting in the shop that I made Jonathan's gun grips from.

    Jim, That is some good insight (no pun intended). I'll also have to try out the dark lens trick to see if it works for me. Might save me a few thousand buying a 3d tv for my wife.
    Darren

    To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault

  9. #9
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    I received the stereoscope I bought on ebay. The handle was snapped off right at the pivot, so any soldering would be difficult. It was missing the thumb piece for adjusting the slide bar and one wire was pretty bent up and the other missing to hold the slides. I found a seller on ebay (springsbon) that had the parts as well as a new handle.



    I got the parts today, The new handle was a bit off in color, so I gently pulled the new one off it's hardware, and was able to put the old one on in it's place. All the holes matched the originals perfectly, so had it back together in no time. I'm considering using some copper patina on all the new hardware to give it a more antiqued look.







    Here's an example of the printed card from the Stereo Maker app. It does allow me to give the card a printed title, description, and put my info on it also, which will make it nice for keeping track of where and when the pics were taken.

    Attached Thumbnails Attached Thumbnails IMAG0080.jpg   IMAG0081.jpg   IMAG0082.jpg   IMAG0083.jpg   IMAG0084.jpg  

    IMAG0086.jpg   IMAG0087.jpg  
    Darren

    To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault

  10. #10
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    Very cool Darren. I can imagine the fun you will have making 3-d pics and using that to view them

    Here's my 3D camera mount I made. It's made to be put on a tripod. Basically, you put this on a tripod, mount your camera to the sliding fixture. Take one picture on the right, slide it over and take one on the left. Then use some software to put it together. Haven't used it in years, but I do remember it did a passable job of doing 3D pics...

    Click image for larger version. 

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    Programmer - An organism that turns coffee into software.
    If all your friends are exactly like you, What an un-interesting life it must be.
    "A door is what a dog is perpetually on the wrong side of" Ogden Nash


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