rviz camera

camera
rviz

asked 2011-06-05 21:22:41 -0500

snoworld
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Hi! I need help. Can you tell me how to visualize the camera image on rviz?

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answered 2011-06-06 03:13:32 -0500

This post is a wiki. Anyone with karma >75 is welcome to improve it.

you will have to add a display to show images. after you have done so it should show an interface where you can select the topic. after selecting the right topic it should show a window, in which your image should be shown. the link provide by lakshmen contains a clear explanation how to do this.

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answered 2011-06-05 22:01:08 -0500

lakshmen
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updated 2011-06-09 15:35:05 -0500

tfoote

58251 ●128 ●542 ●524 http://www.ros.org/

Have a look at this. http://www.ros.org/wiki/rviz/UserGuide You need to add a Camera display.

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answered 2011-06-05 22:17:45 -0500

snoworld
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I read it. I execute camera node using image_transport::Publisher, that publish an sensor_msgs::Image. I have to configure something on rviz? topic is the name that I used ti publish images from camera?

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Please use the comment link to post a comment or edit your original post rather than adding to the list of answers.

Asomerville ( 2011-06-06 11:34:09 -0500 )edit

He can't use the comment tool, he doesn't have enough karma.

Martin Günther ( 2011-06-06 21:23:21 -0500 )edit

Oh, man. I was wondering why so many people had been using answers to comment. I wonder if the admins would be willing to drop that rule.

Asomerville ( 2011-06-07 12:13:12 -0500 )edit

Requiring karma is an antispam measure. You can always edit your own question though.

tfoote ( 2011-06-09 15:33:24 -0500 )edit

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answered 2011-06-06 22:10:01 -0500

snoworld
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I can select the topic that publish my node, but I cant see any image. I can see this on rviz Displays: Global Options -> Fixed Frame: /camera. Global satatus: No tf data. Actual error: Fixed Frame [/camera] does not exist. Camera status: warning -> CameraInfo: No CameraInfo received on [/camera_info]; Image: No image image received

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like i said in my answer, you will need to add a display of the type: "Image" (see this link: http://www.ros.org/wiki/rviz/UserGuide). in that display you have to add the topic. fixed frame is something completely different.(see the same link for an explanation of fixed frame)

Bram van de Klundert ( 2011-06-07 03:58:16 -0500 )edit

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