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ar_track_alvar mistake on id

asked 2014-07-23 08:04:29 -0500

Rahndall gravatar image

updated 2014-07-23 08:04:48 -0500

Dear Ros Users,
I'm experiencing problem on tag recognition using the ar_track_alvar package: "staring" at the same tag, the id of tag recognized is not stable (for example changing from id:32 to id:210 and back to id:32).
Does anyone have experienced the same problem? Furthermore, is there the option to delimit the tag recognizable?
Thank you!

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The size of the tag and camera resolution matter.

I used tag in size of 4cm and the id recognition is terrible. I have tried Xtion and primesense Carmine and the resolution is not enough for such small tag. Right now I'm trying to calibrate my Kinect2 to do the job.

Craig gravatar image Craig  ( 2017-01-06 08:16:07 -0500 )edit

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answered 2014-07-24 04:13:23 -0500

BennyRe gravatar image

Yes I had the same problem.

You can experiment with the max new marker error parameter. Maybe this helps.

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Asked: 2014-07-23 08:04:29 -0500

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Last updated: Jul 24 '14