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Help I accidentally a wigglegram

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Re: Help I accidentally a wigglegram

#61

Post by simonklitj »

albert_e wrote: post #59

Could these use some frame interpolation and smoothing to make them less jerky? Or would that make them just a video clip then? The first couple of examples were good but later examples were not so impressive. I think the later examples suffered from having too little of perspective change between frames and too much of subject movement -- which defeats the illusion of 3d from a "static" image. Ideal one would have a…

Yes, the author notes as much: ‘many of them come out as less "stereoscopic" and more "kinescopic" - like little unintentional movies.’

Re: Help I accidentally a wigglegram

#62

Post by albert_e »

simonklitj wrote: post #61
albert_e wrote: post #59

Could these use some frame interpolation and smoothing to make them less jerky? Or would that make them just a video clip then? The first couple of examples were good but later examples were not so impressive. I think the later examples suffered from having too little of perspective change between frames and too much of subject movement -- which defeats the illusion of 3d from a "static" image. Ideal one would have a…

Yes, the author notes as much: ‘many of them come out as less "stereoscopic" and more "kinescopic" - like little unintentional movies.’

Ah sorry ..i just scrolled though the pics and didnt read the post in full. Thanks.

Re: Help I accidentally a wigglegram

#63

Post by Nevermark »

scottshambaugh wrote: post #20

I’ll shill a library I wrote to make wigglegrams & stereograms in matplotlib - I think pseudo-3D visualization is super underrated as a technique to understand data! mpl_stereo: https://github.com/scottshambaugh/mpl_stereo

i find it so easy to "switch" to 3D with pairs of images like this, it strikes me as strange that cheap stereo-3D isn't a standard interface element.

Other than getting used to making the switch, I don't think there is any cognitive load. Just pairing normal lens focus with a different triangulation distance, which is something we quickly learn to do without thinking when using any glasses or lenses.

I find it a lot more calming than Wiggle-D. And paired with some simple head/eye tracking via laptop cams, it could be really versatile.

The animated plots are great. Be great to have a trackpad rotatable version. (And the need/benefit for head tracking gets really obvious when I move. The perception of reverse/non-sensical dynamics is strong.)

Re: Help I accidentally a wigglegram

#64

Post by ksymph »

The Nintendo 3DS has two cameras on the back, so you can turn its 3D photos into wigglegrams. I made a web app that does this automatically, it has a few demos where you can mess with offset or timing: https://wiggle3ds.moonlemon.nexus/

It's neat how the offset affects focal point. To my eye they look best when the main object is kept fairly stationary, and the further away you are the faster the wiggle speed should be.

Re: Help I accidentally a wigglegram

#65

Post by rapnie »

I have often wondered how the effect was created where e.g. in a documentary you see historic black and white photographs slowly 'camera panning' or zooming somewhat from left to right with a perspective shift. Is that also created as a wigglegram on the basis of multiple photographs I wonder, at times where taking a single photograph was an involved process?

Re: Help I accidentally a wigglegram

#66

Post by PetitPrince »

RobotToaster wrote: post #50
PetitPrince wrote: post #35

Earlier quoted context omitted.

To add to the other comments if you have the idea to use multiple camera to make the same effect but at a higher quality (and if you somehow sort how the synchronisation problem), then congrats ! You have invented bullet time, as demonstrated 27 years ago* in the Matrix. *ouch, I feel old

>if you somehow sort how the synchronisation problem These days you can just capture video and make a 4d Gaussian splat

My constraint was a tongue-and-cheek "use as little technology as possible" (like what was available in 1999). I think nowaydays it's still more economical to do one pass of photogrammetry on your talent then do a mocap and actor replacement ?

Re: Help I accidentally a wigglegram

#67

Post by PetitPrince »

zimpenfish wrote: post #53
PetitPrince wrote: post #35

Earlier quoted context omitted.

To add to the other comments if you have the idea to use multiple camera to make the same effect but at a higher quality (and if you somehow sort how the synchronisation problem), then congrats ! You have invented bullet time, as demonstrated 27 years ago* in the Matrix. *ouch, I feel old

Well, pedantically, demonstrated 148 years ago by Muybridge[0] [0] "In 1878–1879, Muybridge made dozens of studies of foreshortenings of horses and athletes with five cameras capturing the same moment from different positions." via https://en.wikipedia.org/wiki/Bullet_time

My pedant self stands corrected. I wonder if some crazy people made a reverse praxinoscope now.

Re: Help I accidentally a wigglegram

#68

Post by JKCalhoun »

rapnie wrote: post #65

I have often wondered how the effect was created where e.g. in a documentary you see historic black and white photographs slowly 'camera panning' or zooming somewhat from left to right with a perspective shift. Is that also created as a wigglegram on the basis of multiple photographs I wonder, at times where taking a single photograph was an involved process?

They have to take a source photo, decompose it into "layers" (lots of Photoshop I imagine) and then they can parallax the various layers for that depth effect.

Re: Help I accidentally a wigglegram

#70

Post by JKCalhoun »

scottshambaugh wrote: post #20

I’ll shill a library I wrote to make wigglegrams & stereograms in matplotlib - I think pseudo-3D visualization is super underrated as a technique to understand data! mpl_stereo: https://github.com/scottshambaugh/mpl_stereo

That's cool. They work well. (I prefer the stereograms, but you need extra equipment to view those. I keep a stereo lens pair near my laptop though.)

If you pick up a digital stereo camera that creates .MPO files, I wrote a small app to create stereograms: https://github.com/EngineersNeedArt/Stereographer

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