Hi

Could you please ask this question on http://answers.ros.org We're transitioning troubleshooting questions to that website to decrease the volume on this mailing list and make past questions more visible.   https://code.ros.org/lurker/message/20110216.014950.2c9cb33e.en.html

Thanks,
Tully

On Thu, Feb 17, 2011 at 4:43 AM, Asghari Oskoei, Mohammadreza <m.asghari-oskoei@herts.ac.uk> wrote:

Hi,

Thanks to all,

 

modified stereo_camera_model.cpp in image_geometry, now I can receive /stereo/disparity message, but still there is problem in image sync when I want to view by:  rosrun image_view stereo_view stereo:=/stereo image:=image_rect  there is just three gray windows (no image) and a [WARN] message as below

any suggestion, please?

 

 

[ WARN] [1297946062.739511145]: [stereo_view] Low number of synchronized left/right/disparity triplets received.

Left images received:      104 (topic '/stereo/left/image_rect')

Right images received:     102 (topic '/stereo/right/image_rect')

Disparity images received: 18 (topic '/stereo/disparity')

Synchronized triplets: 0

Possible issues:

               * stereo_image_proc is not running.

                 Does `rosnode info /stereo_view_1297946016943512050` show any connections?

               * The cameras are not synchronized.

                 Try restarting stereo_view with parameter _approximate_sync:=True

               * The network is too slow. One or more images are dropped from each triplet.

                 Try restarting stereo_view, increasing parameter 'queue_size' (currently 5)

[ WARN] [1297946077.740713539]: [stereo_view] Low number of synchronized left/right/disparity triplets received.

Left images received:      147 (topic '/stereo/left/image_rect')

Right images received:     155 (topic '/stereo/right/image_rect')

Disparity images received: 29 (topic '/stereo/disparity')

Synchronized triplets: 0

Possible issues:

               * stereo_image_proc is not running.

                 Does `rosnode info /stereo_view_1297946016943512050` show any connections?

               * The cameras are not synchronized.

                 Try restarting stereo_view with parameter _approximate_sync:=True

               * The network is too slow. One or more images are dropped from each triplet.

                 Try restarting stereo_view, increasing parameter 'queue_size' (currently 5)


_______________________________________________
ros-users mailing list
ros-users@code.ros.org
https://code.ros.org/mailman/listinfo/ros-users




--
Tully Foote
Systems Engineer
Willow Garage, Inc.
tfoote@willowgarage.com
(650) 475-2827