AprilTag Pose estimation

Discussion related to "under the hood" OpenMV topics.
Derek
Posts: 1
Joined: Wed Sep 20, 2017 2:45 pm

AprilTag Pose estimation

Postby Derek » Wed Sep 20, 2017 2:52 pm

Hi, everyone, I follow the code of the "find_apriltags_3d_pose.py", which is an example code for detecting the pose of the tags. However, I know that the translation unit is unknown and it is determined by the focal lengths and the size of the tag. Could anyone give me some instructions how to apply a conversion function to transfer to the actual distance in the real world? Thanks!
User avatar
kwagyeman
Posts: 1175
Joined: Sun May 24, 2015 2:10 pm

Re: AprilTag Pose estimation

Postby kwagyeman » Wed Sep 20, 2017 3:54 pm

Please see the MavLink Apriltag example script. This demonstrates how to convert the output value to a distance that's basically correct.

Also, please understand that the range value is much more precise the closer the tag is and falls in precision as the tag moves away.
Nyamekye,

Return to “Technical Discussion”

Who is online

Users browsing this forum: No registered users and 1 guest