Reflective Tape Purpose

[Greg McKaskle]

I hadn't thought to upload it there. It is on its way.

Greg McKaskle

[gnunes]

Greg: what is the lens thread on the Axis 206? I wanted to us an IR light last year, but was stumped by the filter in the lens. If you have any other specs that would help locate a reasonable substitute lens, those would be helpful too...

[MagiChau]

In the FIRST Choice there is an LED light ring you could use to reflect off the tape. http://www.andymark.com/Ring-light-f...-p/fc12-60.htm

[Rizner]

Has anyone tested it with the Kinect? I'd imagine it works well with the Kinect IR emitter (there's an emitter on the Kinect, as well as an IR camera and an RGB camera), but haven't had the chance to check it myself.

[Greg McKaskle]

I believe this is the type of lens I purchased a few years ago, wasn't too careful with my order, and wound up without an IR filter. The result was very washed out colors.

http://www.edmundoptics.com/products...productid=2196

The lens thread is I think called a 7mm lens mount. I believe the 206 lens has a 4mm focal length.

Greg McKaskle

[gnunes]

Greg-

Thanks! I had already found that page, and was guessing that it was a match. Looks like the mount is 12 mm (M12 X 0.5).

On a related topic: I would like to start my programming team with image processing, but we don't have a robot, or a practice field, or etc., etc.. But it looks to me like you have a pile of images of your test field. Would you be willing to post them somewhere in this forum or some other suitable place so we can all download and start practicing our image processing chops?

Cheers,
-Geoff Nunes

[Greg McKaskle]

Ahh, yes. I was doing that from memory and see the M12 now. As for the photos, I would like to check with the folks who that field belongs to first. In the meantime, can someone else put up photos?

Greg McKaskle

[robokiller]

I was playing around with the reflectors and the kinect and found that at any distance the reflectors appeared to be out of range on the depth finder. Is it possible that the IR emitter and receiver are just far enough apart that the IR light is reflected back to the IR emitter and not being picked up by the IR receiver.

-- Jaxon Weis

[RufflesRidge]

Originally Posted by robokiller

I was playing around with the reflectors and the kinect and found that at any distance the reflectors appeared to be out of range on the depth finder. Is it possible that the IR emitter and receiver are just far enough apart that the IR light is reflected back to the IR emitter and not being picked up by the IR receiver.

-- Jaxon Weis

The Kinect "Out of Range" can happen in both directions. Having an object too close, or washing the IR grid out with another IR source will give you "out of range" readings on the depth feed. Using OpenKinect or another package which can access the raw IR image may result in more success.

[MysterE]

Has anyone tested how far the retro-tape will be able to 'reflect' the ring light from? (IE: From the other end of the field?)