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ros-perception / ar_track_alvar

AR tag tracking library for ROS
www.ros.org/wiki/ar_track_alvar
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Issue with AR tag not being recognized #97

Open gaeunHan opened 4 months ago

gaeunHan commented 4 months ago

Hi, I want to report a problem that AR tag is not being recognized.

  1. My environment is as follows:

    • Ubuntu 20.04
    • ROS noetic
    • using USB camera

  2. My launch file to execute ar_track_alvar: <?xml version="1.0"?>

  1. execute result: Screenshot from 2024-07-12 21-04-33 As shown in the picture above, I can confirm that the camera is working properly, but I don't see any values inside the 'markers'. Additionally, I have attached the tf tree and node graph generated after executing the launch file. ar_node_tree

Could anyone know the solution to this problem? if so, I hope to hear about it. Thank you so much.

Kind regards, GHAN