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apriltag_ros

asked 2020-06-21 20:26:17 -0500

Xiao gravatar image

Hello everyone I want to know how to use apriltag on absolute coordinates I see the website https://blog.csdn.net/TFZ941214/artic... here is seems to relative coordinates can anyone help? And I want to know in the website the tag_yaml the means about x y z?

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Lennart gravatar image Lennart  ( 2020-06-29 04:54:42 -0500 )edit

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answered 2020-06-22 02:19:50 -0500

Lennart gravatar image

The apriltag_ros gives you the relative coordinates from the camera to the apriltag. They are also given as tf-frame see tf-package. If you connect your camera-frame with your fixed frame (normaly world or map). You've got your absolut coordinates. The Z-axis is in the direction of the camera view. X and Y are the other both axis (up and the the right side). Hope I could help you.

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Asked: 2020-06-21 20:26:17 -0500

Seen: 140 times

Last updated: Jun 22 '20