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No rectified image output

asked 2018-10-05 11:54:59 -0600

frescho gravatar image

Hello,

I am trying to generate a pointcloud from the depth camera of the robot pepper in conjunction with naoqi_driver, but I seem to get no output from the rectified image. When calling rostopic list I see both topics, /naoqi_driver_node/camera/depth/image_raw and /naoqi_driver_node/camera/depth/image_rect but when using rostopic hz, only image_raw has an actual output, and I can't figure out why. This is the code with which I'm trying to rectify the raw image data;

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

Does anyone have an idea what I could be doing wrong? I'll happily provide further information if needed, I'm just not sure what else could affect this problem right now.

Thanks for any help in advance.

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The image_proc node subscribes to _both_ image_raw and camera_info. Are you seeing camera_info messages in the namespace you specified? If not, then the image_proc node will not publish any messages.

Thomas D gravatar imageThomas D ( 2018-10-05 17:22:45 -0600 )edit

Yes, camera_info is putting out data, that's how I realised there was no output for image_rect, as the error mentioned they weren't in sync because there was no output, but I will doublecheck to confirm this first chance I get back in the lab on monday

frescho gravatar imagefrescho ( 2018-10-06 03:44:27 -0600 )edit

I can now confirm that camera_info is publishing correctly, as is image_raw. But image_proc doesn't seem to be doing anything with image_raw.

Does anyone have an idea what could be wrong, or what I could be missing? I appreciate any help

frescho gravatar imagefrescho ( 2018-10-09 05:02:42 -0600 )edit

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answered 2018-10-09 06:30:00 -0600

frescho gravatar image

updated 2018-10-09 06:31:05 -0600

[UPDATE] I have found and fixed the issue: the rectify nodelet subscribed to image_mono instead of image_raw; everything is working perfectly now

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Glad it's working.

Thomas D gravatar imageThomas D ( 2018-10-09 08:22:17 -0600 )edit

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Asked: 2018-10-05 11:54:59 -0600

Seen: 198 times

Last updated: Oct 09 '18