can't recognize my apriltag

[kk shen]

Hi Bernd,

Now I'm trying to locate the robot using tagslam. But now I have some problems. I modified the camera.yaml and other files as required, but I was unable to identify the apriltag. And when I ran tagslam, the terminal did not report an error.

[Bernd Pfrommer]

Looks like your apriltag detector is not configured correctly. Can you post the launch file for the apriltag detector?

Here are the things to check:

- are you using the correct family? This looks like a 16hh family, not the default one. Make sure you specify that family in your detector launch file. Look at the debug image output of the detector. It should show the tags painted into the image.

- is the black border width set to 1 (only if using the MIT detector)?

I recommend switching the detector to UMich (I think the default used is MIT).