Creating custom AprilTags

Discussion related to "under the hood" OpenMV topics.
ScottM
Posts: 85
Joined: Thu May 30, 2019 2:12 pm
Location: Ottawa, Canada

Creating custom AprilTags

Postby ScottM » Fri Sep 06, 2019 10:55 am

Does anyone know of a website or program I can use to generate my own custom AprilTags? I want to encode strings like "CX1021".
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kwagyeman
Posts: 3837
Joined: Sun May 24, 2015 2:10 pm

Re: Creating custom AprilTags

Postby kwagyeman » Fri Sep 06, 2019 12:42 pm

I built the tag generator into the IDE because there are no websites that generate apriltags. Anyway, the tags only store a number. They are not qrcodes.

Um, you can use different tag families and the numbers in the tags to encode lots of things. I think we support over 5k tags that way.

Otherwise, just put like 4 tags near each other and treat them as one unit with 4 numbers. Deciding the order of deciding the numbers may be tricky however.
Nyamekye,
ScottM
Posts: 85
Joined: Thu May 30, 2019 2:12 pm
Location: Ottawa, Canada

Re: Creating custom AprilTags

Postby ScottM » Fri Sep 06, 2019 3:00 pm

How many digits can I encode in one Apriltag? If I have to, I can live without the "CX" and just put in "1021".
Last edited by ScottM on Fri Sep 06, 2019 3:08 pm, edited 1 time in total.
ScottM
Posts: 85
Joined: Thu May 30, 2019 2:12 pm
Location: Ottawa, Canada

Re: Creating custom AprilTags

Postby ScottM » Fri Sep 06, 2019 3:07 pm

I'll use TAG36H10 and encode 4 digits.

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