Hi Josh,
It seems highly probable that RVIZ was killed due
to memory usage. I ran a long test this morning, after having rebooted my
computer and the robot, and RVIZ did not crash but it's memory usage was every
increasing. It started at 25 MB and after 15 minutes was at 100 MB. It seems
like the more movement there is in the image, the faster the memory
increases.
I'm going to upgrade to c-turtle and see what
happens.
Benoit
Sent: Friday, July 02, 2010 7:54 PM
Subject: Re: [ros-users] Problems with viewing a USB camera feed in
RVIZ
rviz's Camera display is meant for a camera running on a robot
that's set up properly (with TF, calibrated cameras, etc.). It lets you
see the 3D data with the camera image overlaid. If you just want to view
an image, image_view is the correct option.
As for #3, does rviz's memory usage start going up during that time?
If it was killed, either it (or something else) was consuming a lot of
memory, or someone else killed it.
Josh
On Fri, Jul 2, 2010 at 4:27 AM, Benoit Larochelle
<Benoit.Larochelle@dfki.de>
wrote:
Hello,
I'm trying to set-up RVIZ so that I can view the
feed from my USB camera. I am using the usb_cam package to produce the feed,
but RVIZ seems to have a few problems reading it. I set-up the Fixed Frame to /head_camera, and Image Topic to
/usb_cam/image_raw.
1) I get a global warning: No tf data. Actual
error: Fixed Frame [/head_camera does not exist]. I don't know exactly what
transforms and frames are, I just want to see my camera image (in
RVIZ).
2) In the Camera section, I get a Status Error,
under CameraInfo: CameraInfo/P resulted in an invalid position calculation
(nans or infs)
3) After 15 minutes or so, RVIZ crashes with the
error message: /opt/ros/boxturtle/ros/bin/rosrun: line 35: 304 Killed $exepath
"$@" (before lunch, I started RVIZ and image_view and when I came back RVIZ
had crashed and image_view was still going)
4) The image is much darker than with the
package image_view
Benoit
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