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cheap motion capture

Started by May 08, 2002 09:10 PM
13 comments, last by midget_pornstar 22 years, 9 months ago
Got any good resources on it. Im worried that they are sharing the same drivers so one will lock the other out. They are identical.
Those who dance are considered insane by those who cannot hear the music.
Midget Pornstar: I actually think your idea is kind of interesting. Have you ever seen those cheap cameras that simultaneously take four pictures from different angles? If you could figure out a way to rig one of the filters that they have on them up to a webcam/ video camera, you may be able to seperate the images, since there is a space between each one. I don''t know it sounds crazy, but it might work?

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Offtopic:

Midget Pornstar: Is your handle from MTV''s Downtown? (I love that show)


On Topic:

Perhaps you should check out a technique called "rotoscoping". Its animating a 3d model over a video of a person doing whatever action you want it to do. Not too popular, but it seems pretty effective. It also works well for 2d animations.
You could possibly rent (or buy in a old camera shop) Bolex 16mm movie cameras. Used, they run about $300 apiece. You can sell them when you are done. Film will likely cost you $10 per hundred feet or something like that. I can't exactly remember, but it's not going to break the bank unless you have to constantly do retakes.

Ok, to digitize the images, you project the film one frame at a time and use a digital camera to capture a *high resolution* shot of each frame. The digital camera would naturally be setup on a tripod, and preferably you would be using a electronic shutter release for the camera to eliminate bumping it.

Why go the film route? Well, first let me mention the disadvantages: you are likely limited to 24 frames per second and you must pay for film. However, the cost actually isn't exhorbitant unless you are doing hours of retakes.

Now, here are the advantages: You get complete control of the shutter speed and aperture which you do not get with consumer grade digital motion capture solutions. Among other things, this enables you to have a constant shutter speed per frame, and enables you to eleminate motion blur. You get *high resolution* which you will not get with consumer grade digital motion capture solutions. You get constant frame rates, which are not subject to bandwidth problems. Each camera will cost you about $300 and is resellable.

Through an electronic trigger, you might even be able to sync the frames exactly.


[edited by - bishop_pass on May 11, 2002 10:45:53 PM]
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quote:
Original post by glassJAw
Offtopic:

Midget Pornstar: Is your handle from MTV''s Downtown? (I love that show)







Sorry, I live in New Zealand and we don''t get MTV We used to get it a few years back but no more... so I have no idea what Downtown is about... the handle is just a random invention of my warped mind... and if anyone is interested I''m 6''4"...

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