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lagadic / vision_visp

ViSP stack for ROS
http://wiki.ros.org/vision_visp
GNU General Public License v2.0
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QR-code reading range problem #104

Open Canbjerg opened 4 years ago

Canbjerg commented 4 years ago

Hi,

visp_auto_tracker works great but i want to able to read QR codes from 2 meters distance. The example QR code in wiki page's size is 5x5 and i can track it from 55 cm at most. When you go for more distance it keeps tracking but starting detection point is important for me. I keep using larger and larger QR codes but with a QR code with 20x20 cm size i got 190 cm range which is still lower than 200 and i can't go any bigger on QR codes, i'm limited with A4 paper size.

Any suggestions on tracking Qr codes from long distances ?

fspindle commented 4 years ago

I would suggest to use rather AprilTags instead of QR code. I didn't find time to update visp_auto_tracker with AprilTags, but starting from this tutorial it should be not so difficult.

EtienneAr commented 2 years ago

Hello,

I wrote a little piece of code to include the April tags detector in visp_auto_tracker. I don't know if it's what you want @Canbjerg.

I opened a PR #117 because this feature interest me also.