ROS Answers SE migration: rviz ardrone

Question

Hello guys, I am trying to get the video feed of ardrone to the rviz

The situation is that Rviz is not able to get the camera feed from the ardrone. It says the following:

Camerainfo: no camerainfo received on [ /ardrone/camera_info] topic may not exsist transform : For frame []: Fixed Frame[/world] does not exist image topic: /ardrone/image_raw

but when i execute

rostopic list

I get

/ardrone/camera_info

/ardrone/image_raw

/ardrone/image_raw/compressed

/ardrone/image_raw/compressed/parameter_descriptions

/ardrone/image_raw/compressed/parameter_updates

/ardrone/image_raw/theora

/ardrone/image_raw/theora/parameter_descriptions

/ardrone/image_raw/theora/parameter_updates

/ardrone/land

/ardrone/navdata

/ardrone/reset

/ardrone/takeoff

/ardrone/togglecam

/cmd_vel

/rosout

/rosout_agg

The topic ardrone/camera_info does exist but RVIZ is not able to see that.Like wise this is the case when i tried to access the usb cam or system integrated cam.In all of the cases the rviz says that it is void of camera info topic even though its running clear

any help would be greatly appreciated.

thanks!!

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Originally posted by metal on ROS Answers with karma: 174 on 2012-01-09

Post score: 0

Answer 1

The reason is that the display parameter chosen should be "IMAGE" and choose the topic "ardron e" from the drop down and the image will be displayed in a window.

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Originally posted by metal with karma: 174 on 2012-01-13

This answer was ACCEPTED on the original site

Post score: 2

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Original comments

Comment by Eric Perko on 2012-01-15:
The Camera display assumes a camera_info topic is available and attempts to overall other data onto the image using the CameraInfo. The Image display type does not use CameraInfo and is suitable for displaying raw, unrectified images (similar to the image_view tool).