Single-Camera Stereoscopy from Kyle McDonald on Vimeo.
Kyle McDonald says, Leaving Termini in Rome, in 3D. Uses the parallel viewing technique en.wikipedia.org/wiki/Stereoscopy Recorded on a single camera at 25 fps, with the right side delayed by one frame. Assuming the train was going 40 k/h, each frame is about 44 cm apart — a bit more than the width of human eyes, but not significant enough to destroy the effect.
You can do this for yourself so long as you separate the left/right with a delay that creates about the width between the human eyes between perspectives. As a rule of thumb, at 30 fps, 1 frame is approximately the distance in centimeters of your speed in kilometers/hour (10 km/h / 30 fps = 9.2 cm).
I’ve done a few experiments with stereo photos back when i was doing pinhole stuff. Now I just need a video 3D viewer!
It’s a common mistake to think that stereo photos must be taken at eye-width apart. Since photos take up so much less of your field of view, they must be taken at a distance apart to compensate. It all depends on how far away your subject is - for macro stereo (stereo of very tiny objects) an eighth of an inch is perfect. For mountains and really big things you want half a mile or more.
I would say this video needed more delay between the frames to enhance the depth.
A guy called “ejkdreamer” made a cool 3-d video viewer out of an old stereoscope and a PSP. Check it out: http://cre.ations.net/creation/vintage-stereoscope–psp–pspscope-3-d-viewer
I’ve also written up a tutorial on single-camera stereo photography and viewing: http://cre.ations.net/creation/3d-stereo-photography
Hi Bre!
Very interesting technique.
I don’t know how anyone else is viewing this but I find if I cross my eyes slightly, at about 12″ in front of the screen, I can see a third image in 3D in between the left and right images. Sure I look like a loon but IC3D!
Cool! I made it 3D just by putting my hand flat, pinky to the seam between the images, and putting my nose up to my thumb. Look “through” the screen until he two pictures line up, and voila: 3D!
Doesn’t work so well in fullscreen, though.
Nate True — you’re exactly right about compensating for distance. I wrote the description assuming people would be working somewhere between “macro” and “massive”. I originally tried on a plane where, obviously, a single frame distance is significantly wider than an eye width