How do you get stereo_image_proc to include a frame_id so that rviz will accept the point cloud messages?

asked 2011-04-28 13:30:48 -0500

Asomerville
2743 ●74 ●99 ●133 http://www.resquared.com/

updated 2011-04-29 11:12:28 -0500

When running stereo_image_proc, I'm attempting to view the point cloud data with rviz. However rviz complains and throws out the messages sayin "MessageFilter [target=/ ]: Discarding message from [/stereo_image_proc] due to empty frame_id".

I can find no reference to frame_id in stereo_image_proc, and I've tried fiddling with the fixed frame parameters in rviz to no avail.

Am I missing something obvious?

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answered 2011-04-29 07:40:00 -0500

Asomerville
2743 ●74 ●99 ●133 http://www.resquared.com/

It turns out that stereo_image_proc simply forwards the header info it finds in the camera_info message it gets from the left camera. If your camera info manager is not publishing a frame_id with in the camera_info message, neither will stereo_image_proc and you won't be able to visualize with rviz.

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answered 2011-04-28 20:57:04 -0500

Felix Endres

6468 ●28 ●57 ●93 http://www.informatik....

I'm not familiar with stereo_proc but you could do rostopic echo /stereo_image_proc/header to view what the frame_id of the messages is. For more help, you would need to give more information about what you are actually doing.