Beaglebone black freezing with USB Cam
Something strange happened with usb_cam in my beaglebone black. I usually was able to run it and access the video coming from it, but now, as soon as I launch the node the bealgebone freezes and...
View ArticleHow to transmit images from a camera?
Hi, I intend to public images from a wifi camera on a topic, i tried to use usb_cam but I think it does not support wifi, so i tried to download the gscam package but it is not available for indigo,...
View Articlehow do I improve the steam video speed in ROS
Hello, thank you for spending your time try to help my problem. Now I have two computers and would like to show the steam video on both computers through wifi connection. the package Im using is...
View Articleimage_view doesn't show anything
Hi, I am trying to show images from a webcamera using rosrun image_view image_view image:=/usb_cam/image_raw. The problem is that nothing happens when I type that command in a console. I have checked...
View Articlecameracalibrator.py doesn't work with --no-service-check?
I am trying to calibrate a stereo camera (Logitech Webcam Pro 9000) setup under Ubuntu/Diamondback. I am using usb_cam drivers, which are publishing: /image /rosout /rosout_agg...
View ArticleUsb_cam ignoring camera_frame_id
I have a launch file for starting a stereo USB camera: However, when I run this, I get the warnings: [ WARN] [1431313131.230893149]: [head_camera] does not match name left_camera in file...
View ArticleWhat are the next steps after stereo calibration?
I've completed the [stereo calibration tutorial](http://wiki.ros.org/camera_calibration/Tutorials/StereoCalibration) and have my sample images and parameters in a calibrationdata.tar.gz file. Where do...
View ArticleHow to get pointcloud2 data from usb_cam or Pointgrey camera?
Hello, experts~ I am a new in ROS. And recently, I am trying to get image and make it detected by the node ar_track_alvar. However, this ar node requires sensor_msgs/PointCloud2 data. Firstly I tried...
View Articleusb_cam error
I've download the usb_cam in my BBB and catkin_make_isolated --install -DCMAKE_BUILD_TYPE=Release --pkg usb_cam in my workplace ( indigo ). But I meet some issue when I catkin_make_isolated it So I've...
View Articlewebcam not appearing in "rostopic list"
Hi everyone, I am new to ROS and have been trying to run a camera calibration using PTAM, however I am having some issues getting the camera recognised and to appear with `rostopic list`. I have...
View Articlear_pose with several cameras
Hello everybody, I'm trying to use ar_pose to detect the position of a marker. I'm interested into use more than one camera. My idea is to run one ar_pose node for every camera. Since now I've been...
View ArticleError while interfacing my webcam to ROS
I installed **ros-indigo-usb-cam** package and executed the code `rosrun usb_cam usb_cam_node ~video_device "/dev/video0"` which resulted in following error **[ERROR] [1435589390.503107344]: outbuf...
View ArticleHow to use lsd_slam with usb camera?
I install lsd_slam from [here](https://github.com/tum-vision/lsd_slam). I run succesfully lsd_slam with .bag files from taken [here](http://vision.in.tum.de/lsdslam ). I want to try lsd_Slam with usb...
View ArticleHow to use lsd_slam with calibration file?
I calibrated my camera using `/rosbuild_ws/package_dir$ rosrun camera_calibration camacalibrator.py --size 8x5 --square 0.030 image:=/usb_cam/image_raw --no-service-check` command. It wrote on the...
View ArticleHow to get usb camera frame?
I use ubuntu 14.04 and indigo. I install usb_cam. My launch file is under `home/rosbuild_ws/package_dir`. The content of it is below : I run below command on terminal and get errors :...
View Articlelsd_slam tracking lost
Hello, I use lsd_slam on ubuntu 14.04 and indigo. I build using rosbuild not catkin. I run lsd_slam with my own data. I have a video and extract images from it using 50 fps. Then I convert all images...
View ArticleI cannot view the image published by usb_cam
In ran the usb_cam node with `rosrun usb_cam usb_cam_node` the images are published and i ensured that with `rostopic echo /usb_cam/image_raw`but when i tried running `rosrun image_view image_view...
View Articlear_track_alvar pose not returned
Hello folks, I am tring to use the AR_TRACK_ALVAR (version 0.5.1) on my Indigo version with Ubuntu 14.04.1 64 bits. I already have used this package on Fuerte and it works perfectly. However, I have...
View ArticleGarbled image problem on usb_cam
I am testing usb_cam_node with a usb camera, when I use the follow launch file, everything is ok, but when I change pixel_format to **mjpeg**, the video become garbled...
View ArticleUSB Cam ImagingSource Problem
Hello, I am currently trying to get the DMK 42BUC03 [link_to_camera](http://www.theimagingsource.com/en_US/products/cameras/usb-ccd-mono/dmk42buc03/) from ImagingSource to work with an ROS package. I...
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