Comments on: Automatic projector calibration

By: Dionne Doria

Dionne Doria — Mon, 05 Oct 2009 23:50:42 +0000

Dies ist eine gro?artige Geschichte. Danke!

By: jackson

jackson — Tue, 02 Jun 2009 17:04:10 +0000

Jason,

Any luck getting in contact with any of these folks?

By: Jason

Jason — Tue, 19 May 2009 15:52:18 +0000

Currently, as far as I know, you can’t buy this software. If you were to check out shaderlamps.com you can request a copy of their callibration software, and from what I can tell, it is pretty similar to what Johnny was using for his callibration technique (which he worked with a few of the shader lamps people with).

I have tried to contact johnny directly through the e-mail on his website, but no luck so far. I want to try and use this callibration technique in a real-world, entertainment aspect.

Being a VJ, callibration is not really that important, but to be able to transform a stage into something that is immersive both for the audience, and the performers, this would be absolutely vital.

I certainly hope that research continues for this, and it someday, soon hopefully, becomes available to users.

By: Patrick Jules

Patrick Jules — Sun, 20 Jan 2008 05:18:19 +0000

This is what I’m talking about all I want to know is how much and where can I buy this technology.

By: nate

nate — Fri, 14 Dec 2007 12:51:14 +0000

wow. that has to be revolutionary!

By: Polter

Polter — Fri, 14 Dec 2007 04:38:59 +0000

goodness!!! that thing rocks!!! it has many potential uses!!! It’s great if they can develop dynamic calibration too(which is more complex to do)

By: The Steven

The Steven — Tue, 11 Dec 2007 21:17:48 +0000

Umm… Wow!

now add a pair of wii remotes and perhaps you could “draw in thin air”

By: chris

chris — Mon, 19 Nov 2007 18:57:54 +0000

impressive indeed - it is worth pointing out that this isn't new research (UIST 2004) - MERL and CMU have done some pretty neat stuff in the past. as a followup, they had a publish in UIST 2005 where they built on this where they added the capability to move the display in real time and increased touch capabilities ...

http://www.cc.gatech.edu/~summetj/papers/uist05.pdf
http://www.cs.cmu.edu/~johnny/academic/moveable_UIST_2005.mov

By: AddRock

AddRock — Sat, 17 Nov 2007 05:01:27 +0000

In the case of this demonstration, the calibration is not bing done in the projector. The video is passing through a computer first. The computer is processing the video and warping it to fit the projection surface. The projector is just being a dumb projector and not doing anything different.

By: matthew

matthew — Sat, 17 Nov 2007 00:18:58 +0000

where do you get the software

By: matthew

matthew — Sat, 17 Nov 2007 00:01:47 +0000

where do you get the schematics and the software cuz i got an old crappy projector lyin around

By: Johnny Lee

Johnny Lee — Fri, 16 Nov 2007 20:14:02 +0000

I really like the Hack-A-Day community because there is a high density of very smart people with an imagination that rivals or surpases that of the recognized research community.

The comments here about using high-speed DLP, infrared patterns, reflective markers, multiple surfaces, lost pixels are all completely spot on. Since this is my thesis work, some of these ideas have been addressed in my followup work. You can find that here (with more video!):

http://www.cs.cmu.edu/~johnny/projects/thesis/

By: sygyzy

sygyzy — Fri, 16 Nov 2007 20:05:24 +0000

I think this is amazing but I don’t understand how it works. I have never seen a projector that has this sort of calibration via user-accessible menus. I mean, unless the team also re-wrote the projector code, I am stumped. I understand *how* the system works, I just don’t understand it’s able to tell the project to do anything other than zoom in and out, squeeze sides, or focus.

By: a random John

a random John — Fri, 16 Nov 2007 19:42:26 +0000

When I worked at IBM we had a system that would project onto multiple interactive surfaces using a projector and mirrors. The problem was always calibration. You'd mount the projector, motorized mirror, and position the surfaces to project onto and then calibrate. If anything got touched then you had to do the calibration all over again. This tech would make it so that all you had to do at the start was a very basic alignment and then the system could handle the calibration as needed.

The demo itself was very cool. We had a clothing store of the future set up for a major retailer and the projector could put a screen on the wall, on the floor, and on the jeans display depending on where the customer was. The jeans display was interactive so that you could point with your finger and it would show different options.

By: AddRock

AddRock — Fri, 16 Nov 2007 19:26:46 +0000

This type of technology, using optical sensors to warp and blend projectors, is already commercially available from at least two companies. Iridas and 3D Perceptions. I’ve been using them to project on cylinders and spheres. However, they take about 30 seconds to auto-align and they are too expensive for everyday use. The speed of this is very impressive. If its being done with inexpensive hardware, thats equally impressive.

You can’t use reflecting targets because they would be visible to the viewer.