AR Tag

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alastairsim edited this page Jun 29, 2021 · 1 revision

This section allows us to use the ar-track-alvar package.

Required:

ros-melodic-usb-cam
ar-track-alvar
video-stream-opencv

Recommended to print out ar tags (0-8, 9-17) or load them on a separate device but be cautious of glare interfering with the tracking.

Install

Installation tutorial here.

Errors

Error:Camera calibration file not found.

There are tutorials on this page regarding how to calibrate a camera.
If you have a calibration file already you will need to go into the usb_cam node and change the file path to your calibration file.

Wondering how to make nice formatting? Check out this guide!