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Sync problem related to viso2.

asked 2013-10-08 15:39:23 -0600

Dava2788 gravatar image

updated 2013-10-08 15:45:01 -0600

Hi All. I'm trying to setup and run Viso2 node in ros fuerte. I have a problem related to a sync warning in gscam, so I asked this question:_

When I updated the code version of GSCAM, I could see the rectify image when I used the image_view node.

But my problem now is when I tried to Subscribed that topic (Image_rect) to Viso2 node, It show again the sync msg (warning message), this following message:

image_transport] Topics '/Dava/image_rect_color' and '/Dava/camera_info' do not appear to be synchronized. In the last 10s:

Image messages received:      100

CameraInfo messages received: 0

Synchronized pairs:           0

And when I used the command "rostop echo /mono_odometer/info" I don't see anything.

So I don't know if the problem is with my viso2 configuration or is a problem with GSCAM.

I attached the output, my camera calibration info (From rostopic echo) and rxgraph output. And you can download my lauch file in this link (): _!W9pkkD5Q!NcRUbm0drgoKXXoli6rHDGUKEHBebpktfsO4Wd2tDas_

I will appreciate any respond . Thank


rostopic echo camera info.png


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answered 2013-10-08 22:00:13 -0600

Stephan gravatar image

Please make sure your remappings are setup right. From your rxgraph output it looks like the mono_odometer is only subscribed to the image_rect topic and not to the camera_info topic.

Using rosnode info mono_odometer you can have a quick look at the topic connections.

image_proc is designed to run in the camera's namespace:

<node pkg="image_proc" type="image_proc" name="image_proc" ns="/Dava/camera" />

This way you have all camera-related topics together:


Hope that helps!

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Asked: 2013-10-08 15:39:23 -0600

Seen: 568 times

Last updated: Oct 08 '13