QR-code reading range problem

[Canbjerg]

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]

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]

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.