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2014-08-07 06:30:44 -0500 asked a question Using oculus_rviz_plugins or rviz stereo for android VR headset

Hi

I don't have an oculus, I though I can use something like openDive or google cardboard with an android phone to create an oculus-like VR experience in RViz. In theory a quick-and-dirty solution could be done using "ROS sensors driver" android app to get IMU data for orientation tracking and send the video somehow back to the android.

I already can receive the orientation information, and I have a few ideas on sending back the video, my main problem is rendering the video in RViz, oculus_rviz_plugin does not work without an oculus connected and I don't really understand the wiki pages about stereo rendering in RViz.

My question is; how can I get an output like the one in oculus_rviz_plugin (below) without having an oculus?!? and can I get it as a published topic?!?

image description

I'm not an experienced programmer so I'd appreciate as much details as your time allows, also I know there might be lag issues in this whole VR approach but I'd like to try

Thanks in advance

2013-08-30 05:27:56 -0500 commented answer Why is ROS ANSWERS forum so easily exploitable?

thanks, I guess it is since I don't see them :-)

2013-08-27 23:43:22 -0500 commented answer Why is ROS ANSWERS forum so easily exploitable?

where is the flag offensive button?!?

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2013-08-20 00:54:58 -0500 answered a question rviz qt creator gui

Personally I use the quick and useful rqt_gui from rqt, you can integrate RVIZ in rqt_gui by choosing it from the plugins menu but you will have less viewing area if you have other plugins running, one way to solve that would be to close all RVIZ panels except Tools and Time

I've never used qt-creator so I can't comment on which might be better, hope that helps

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2011-11-16 06:44:13 -0500 commented question Ubuntu Oneiric Install Fails
I got this error as well after recently reinstalling ubuntu, it was working just fine when I installed it about a month ago but I've removed ubuntu to try openSuse and fedora and when I reinstalled ubuntu again I got this error, have there been any updates in the ROS repositories or packages?
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2011-10-25 00:27:22 -0500 commented answer openni_kinect dosen't publish anything in the topics or rviz
I get the same two "tried to advertise service" errors, yet there is still messages in the topics and I get the rough coloured point cloud in rviz, are you using openni_camera or openni_launch?? only openni_launch works with me
2011-10-24 23:45:27 -0500 commented answer openni_kinect dosen't publish anything in the topics or rviz
I don't know what you mean by "using openni_launch openni.launch doesnt solve the problem", in my case it mostly worked, I'm still having some trouble with rviz but at least the drivers publish the messages on the topics and I can make use of them with my own code or view it on image_view
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2011-10-17 21:54:12 -0500 commented answer openni_kinect dosen't publish anything in the topics or rviz
After multiple retries I finally figured out the problem with rviz not starting, although I'm still unable to use see what I wan't in rviz but at least the openni driver does publish data in the topics, I'll just have to work on using them without using rviz
2011-10-17 21:50:46 -0500 marked best answer openni_kinect dosen't publish anything in the topics or rviz

Try running roslaunch openni_launch openni.launch; things have be re-arranged a bit in electric.

Do the messages printed to the console indicate that the device is connected?

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2011-10-12 23:40:12 -0500 commented answer openni_kinect dosen't publish anything in the topics or rviz
Ok, my laptop don't have usb3, thanks for the info
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2011-10-12 04:41:38 -0500 commented answer openni_kinect dosen't publish anything in the topics or rviz
Yes device recognized, I know cause it gave an error and I found out that I forgot to plug Kinect's power, when I did so it showed some message indicating detecting Kinect, but when I try the openni_camera launch file nothing is published in topics, but openni_launch seems to work and do same tasks
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2011-10-12 01:23:34 -0500 commented answer openni_kinect dosen't publish anything in the topics or rviz
I think you're right, I tried your suggestion and used rostopic echo to listen to rgb/image_raw and ir/image_raw and I got all those numbers running on the screen, so I think the driver is ok now, unfortunately rviz gives some new "Segmentation fault" so I can't see what those numbers are, thanks
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2011-10-10 22:27:33 -0500 commented answer openni_kinect dosen't publish anything in the topics or rviz
Thanks for your reply, unfortunately I didn't got to try it yet as I work with Kinect in the uni and I was busy with some literature review, I'll have some time tomorrow to work on the Kinect and try out the different launch file
2011-10-10 22:23:18 -0500 commented answer openni_kinect dosen't publish anything in the topics or rviz
Thanks Ben_S for indicating that the launch file itself is the problem, for I feared that there might be some hardware incompatibility on my laptop, I'll try modifying the launch file or using older version
2011-10-10 22:18:52 -0500 commented answer openni_kinect dosen't publish anything in the topics or rviz
Thanks, I did tried to quit everything (Including roscore) and start over and waited for a while to make sure that the node is up and running and no other tasks are pending or in processes
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2011-10-05 00:04:49 -0500 asked a question openni_kinect dosen't publish anything in the topics or rviz

Hi, I'm very new to ROS so bare with me a bit, I've just installed Electric on Ubuntu 11.04 on an Toshiba L650 laptop (ATI VGA)

I've installed opennni_kinect using the package

As I understand all I need to do is just to connect the kinect and start the openni_camera node so I did that using "roslaunch openni_camera openni_node.launch" and that kept on doing some stuff and stopped at

so I assumed everything is ok then followed the instruction to view the images on rviz but got nothing except a status warning in the point cloud2 screen in front of Topic saying "No messages received"

I checked using rostopic hz and rostopic echo for /camera/rgb/points but there is nothing there, also the global frame status indicates the status to be ok but there is nothing showing on the screen at all

I'm I missing something or is there a conflict with ATI driver or something? is there anything else rather than roscore should be running or is there any other steps before I run the node?