initialize but topics are empty [closed]

asked 2012-10-01 06:50:48 -0500

EduardoB gravatar image

I am using fuerte in ubuntu 12.04.

Whether I use roslaunch openni_launch openni.launch or rosrun openni_camera openni_node I get the following output:

[ INFO] [1349109695.908019815]: Number devices connected: 1
[ INFO] [1349109695.908117225]: 1. device on bus 003:26 is a Xbox NUI Camera (2ae) from Microsoft (45e) with serial id 'A00364903898050A'
[ INFO] [1349109695.909604011]: Searching for device with index = 1
[ INFO] [1349109695.951698285]: Opened 'Xbox NUI Camera' on bus 3:26 with serial number 'A00364903898050A'
[ INFO] [1349109695.983343985]: rgb_frame_id = '/camera_rgb_optical_frame' 
[ INFO] [1349109695.983442622]: depth_frame_id = '/camera_depth_optical_frame'

When I use rostopic list I can see all the topics:

/camera/depth/camera_info
/camera/depth/disparity
/camera/depth/image
/camera/depth/image/compressed
/camera/depth/image/compressed/parameter_descriptions
/camera/depth/image/compressed/parameter_updates
/camera/depth/image/compressedDepth
/camera/depth/image/compressedDepth/parameter_descriptions
/camera/depth/image/compressedDepth/parameter_updates
/camera/depth/image/theora
/camera/depth/image/theora/parameter_descriptions
/camera/depth/image/theora/parameter_updates
/camera/depth/image_raw

...

/camera/rgb/image_rect_color/theora
/camera/rgb/image_rect_color/theora/parameter_descriptions
/camera/rgb/image_rect_color/theora/parameter_updates
/camera/rgb/rectify_color/parameter_descriptions
/camera/rgb/rectify_color/parameter_updates
/camera/rgb/rectify_mono/parameter_descriptions
/camera/rgb/rectify_mono/parameter_updates
/rosout
/rosout_agg
/tf

But all the topics are empty, there is no information being published

Can someone please help me?

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Closed for the following reason question is not relevant or outdated by tfoote
close date 2015-05-21 20:06:46.948813

Comments

Did you try rostopic info and rostopic echo to find out if there are any nodes publishing on that topic and what is being published?

harsha gravatar image harsha  ( 2012-10-02 19:12:01 -0500 )edit

For, rostopic info /camera/rgb/image_raw, /camera_nodelet_manager, is the publisher with no subscriber, but when I use rostopic echo, there are no messages being published.

EduardoB gravatar image EduardoB  ( 2012-10-04 08:28:48 -0500 )edit

Was the kinect connected to a USB 3.0?

harsha gravatar image harsha  ( 2012-11-21 04:57:16 -0500 )edit
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