RoboJackets Wiki - User contributions [en]

Talk:List of Tasks

2005-10-11T05:02:34Z

SpencerC: /* About SICK */

==About SICK==

After browsing through the various sensors provided by SICK and looking at price quotes, I think it's safe to say that it's a dead end. The cheapest relevant equipment I could see there was machine vision stuff, which has a maximum range of about 25 inches, and costs a minimum of about 3 grand. The distance scanners they sell cost a minimum of 7 grand. I think that creating our own systems will be a considerably better option. [[User:SpencerC|Spencer]] 12:06, 10 Oct 2005 (EDT)

Well, respectfully, I think you're wrong. Check out this link for some info, we would probably use one LMS 200 or LMS 292
[http://www.mysick.com/saqqara/view.aspx?id=IM0012759 Sick LMS data sheet]
They retail for between $2-3000, and we may very well have access to several of them through the CS department (or they could be donated). They require no development time, have Linux drivers, are very accurate, and are field proven (they were used by all 4 of the teams that finished the DARPA Grand Challenge)(See my info page for links to successful DARPA teams that used them).
I think that stereo vision is certainly not necessary, and I think we can do much better, (much simpler and cheaper) with the sonar array, and one camera if we cannot get a hold of one of the SICKs (which I maintain are the best option).
[[User:AndyB|AndyB]] 18:09, 10 Oct 2005 (EDT)

In that case, I think we should split SICK and stereovision into two different articles, since they seem to be mutually exclusive. [[User:SpencerC|Spencer]] 01:02, 11 Oct 2005 (EDT)

Talk:List of Tasks

2005-10-10T16:06:08Z

SpencerC:

File:Stereodiag2.png

2005-10-10T02:55:28Z

SpencerC: Although the two scan blocks do not correspond, they are identical due to the solid color of the blue rectangle, and so the algorithm believes that they do.

Although the two scan blocks do not correspond, they are identical due to the solid color of the blue rectangle, and so the algorithm believes that they do.

File:Stereodiag1.png

2005-10-10T02:47:06Z

SpencerC: In this example, the block containing the noised block is shifted by 17 pixels, whereas the block containing the orange circle is shifted by 20 pixels. The circle is therefore closer.

In this example, the block containing the noised block is shifted by 17 pixels, whereas the block containing the orange circle is shifted by 20 pixels. The circle is therefore closer.

IGVC

2005-10-09T18:31:50Z

SpencerC: /* Important info */

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2005-10-09T01:54:15Z