apriltag

Discussion related to "under the hood" OpenMV topics.
pcls1026
Posts: 62
Joined: Tue Aug 22, 2017 1:33 am

apriltag

Postby pcls1026 » Wed Mar 21, 2018 12:58 pm

Hi,
For script "find_apriltags_3d_pose" Which apriltag "ID" should I use. For example "april.tag.Tag36h11" has 586 ID's? I printed out and tried ID=1, however the script could not find the apriltag.
Jim
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kwagyeman
Posts: 2116
Joined: Sun May 24, 2015 2:10 pm

Re: apriltag

Postby kwagyeman » Wed Mar 21, 2018 1:08 pm

Hi, can you show a picture and give some more information on the error. It seems like you did the right thing.

This feature is extremely robust and not broken however. So... Did you remove the white border around the tag? It is required. You should be able to demo the feature like in our video about it.
Nyamekye,
pcls1026
Posts: 62
Joined: Tue Aug 22, 2017 1:33 am

Re: apriltag

Postby pcls1026 » Wed Mar 21, 2018 1:55 pm

Ignore my post. I moved the apriltag closer to the camera and it worked.
Jim
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kwagyeman
Posts: 2116
Joined: Sun May 24, 2015 2:10 pm

Re: apriltag

Postby kwagyeman » Wed Mar 21, 2018 2:50 pm

The max distance is about 8ft at 160x120 for an 8 inch tag.
Nyamekye,

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