dynamic surface projection

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cwright's picture
awesome!

Daniele, that's amazing! :)

(care to post the math used to turn the 4 corner coordinates into 3D coords for the perspective projection? I've been fighting with that for a year and a half now...)

franz's picture
MSA ?

i assume the corner pinning comes from memo ... and then it seems to be cleverly linked to KnM CV tracker... awesome

DanieleCiabba's picture
I have insanely modified the

I have insanely modified the memo patch "msa Quad Warp"...

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SteveElbows's picture
Wow thats a great

Wow thats a great demonstration, captures the imagination.

On a vaguely related note I tuned into CNN a few times during US election season and saw them mucking around with graphics that were attached to physical objects in the studio. It wasnt without its hitches and I dont think they had an actual purpose for doing it, but it made me chuckle to see someone desperately waving a bit of card around trying to get a piechart to sprout from it. Your demo was better :)

dwskau's picture
Incredible!

That's amazing!

Augmented reality seems to be becoming more and more commonplace. I just watched a similar video of it used in an architectural presentation.

toneburst's picture
Anyone Seen

... Minority Report?

a|x

gtoledo3's picture
Do you find that the crop

Do you find that the crop marks that you drew on the paper are a must?

DanieleCiabba's picture
you mean if they are

you mean if they are necessary?

gtoledo3's picture
Yes...but I think I know the

Yes...but I think I know the answer... which is, yes, if you want it to track well.

And I admit, I am sitting here messing with the CV and the MSA patch and still scratching my head a little in how you are hooking them up... but then again, I am only 5 minutes into it :o)

Really impressive. I saw that clip of the interactive reality stuff from that University that was making the rounds this last week, and immediately thought of QC and Kineme. It is awesome that you have it working somehow in this form.

cwright's picture
solutions

The motion tracking algorithm currently used tracks brightness, so the marks on the corners helps the algorithm find where the corners move (more or less -- towards the end, the bottom right corner starts to slide a bit) -- There are alternative algorithms that could possibly get this to work without needing the marks. For example, it would track the card corners compared against the background (possibly with chroma data). OpenCV might or might not be able to do this, I'm not sure. But there's a ton of stuff in the CV field that I'm just beginning to figure out myself.

(As an adaptation on this method, I've wondered if having a tight cluster of points at each corner, and having them self-correct by keeping points within a certain radius, would keep the sliding problem at bay... lots of work for little gain though.)

franz's picture
CV but ...

the most bothering issue is the fact that KnM CV can't toss out points, so if you ever loose your tracking point, you're screwed (try to rotate your card too fast ...)

DanieleCiabba's picture
source.. here

DanieleCiabba's picture
.... Minority

.... Minority Report!!!!

http://vimeo.com/2229299

toneburst's picture
Exactly!

I wonder which came first: the film of the product?

a|x

gtoledo3's picture
That's so cool

That's so cool looking...

Wasn't there some kind of Nintendo or Sega glove like this, back in the late 80's or early 90's?

memo's picture
both!

John Underkoffler, the guy behind this, was the science and tech adviser for steven spielberg on the movie!

dwskau's picture
Re: dynamic surface projection

gtoledo3's picture
Re: dynamic surface projection

No, that is AR, a slightly different technology/concept. And it already exists for QC (if a bit lacking in full feature set). Maybe I'm wrong in definition on that though... I thought dynamic surface projection denotes "2D", maybe not!

Do a search, I've posted files and a compiled plugin.

gtoledo3's picture
Re: dynamic surface projection

Ugh, I am so disgruntled after looking at that :o) I'm going to have to go back to working with that more.

dwskau's picture
Re: dynamic surface projection

I suppose you are right, I never really thought about it but the image isn't being rotated in space, only warped...

usefuldesign.au's picture
Re: dynamic surface projection

Bravo, that's awesome.