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AprilRobotics / apriltag_ros

A ROS wrapper of the AprilTag 3 visual fiducial detector
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image_proc sync problem #72

Closed m4xr1sk closed 3 years ago

m4xr1sk commented 4 years ago

I'm using image_proc to rectify the image of my camera. Without image_proc the tag detection works but obvioulsy the orientation is wrongly estimated.

With image_proc the tag detection doesn't work and now I'm getting this warning:

[ WARN] [1582182434.473958456]: [image_transport] Topics '/image_proc_fisheye1/image_rect' and '/image_proc_fisheye1/camera_info' do not appear to be synchronized. In the last 10s:
        Image messages received:      301
        CameraInfo messages received: 0
        Synchronized pairs:           0

How can I solve? Is this the problem that tags are not detected any more?

parakhm95 commented 4 years ago

How are you publishing the camerainfo? Also, is your distortion matrix correct? Because from my experience, things don't work well for fisheye parameters with image_proc. It throws an error about distortion matrix not being available and then quits.

wxmerkt commented 3 years ago

Closing due to old age - please reopen if issue still persists