ar_sys camera calibration problem ...
hi. i want to run ar_sys package . But i dont know that how i will define my laptop's camera to ROS . And i dont know how can i pass the proper launcher parameters (see launch files for details) to...
View Articlear_sys camera calibration problem ...
hi. i want to run ar_sys package . But i dont know that how i will define my laptop's camera to ROS . And i dont know how can i pass the proper launcher parameters (see launch files for details) to...
View Articlear_sys camera calibration problem ...
hi. i want to run ar_sys package . But i dont know that how i will define my laptop's camera to ROS . And i dont know how can i pass the proper launcher parameters (see launch files for details) to...
View Article[ERROR] [1464153153.330383554]: VIDIOC_S_FMT error 22, Invalid argument
I am using a nikon dslr camera as a webcam in ROS.But when i am running this command rosparam set usb_cam/pixel_format mjpeg i am getting this error [ERROR] [1464153153.330383554]: VIDIOC_S_FMT error...
View Articleerror when install usb_cam
Hi, I am installing usb_cam and get this error: CMake Error at /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:75 (find_package): Could not find a package configuration file provided by...
View ArticleLaunch two camera nodes for stereo calibration
Hello, I am attempting to launch two camera nodes via a launch file in order to calibrate them via stereo. Below is my launch file: I am pretty new to ROS and need some help getting this to output two...
View Article/dev/video0 error while using usb_cam driver
I am using usb_cam driver to use a camera. When i try to run the driver using *rosrun usb_cam usb_cam_node* , I get the following error. [Screenshot from 2016-06-30...
View Articleusb_cam not working with eMPIA 2861 chip
Hello, I downloaded the [usb_cam](http://wiki.ros.org/usb_cam) package to use with a frame grabber that uses the eMPIA 2861 chip. This, when it is plugged in, appears in /dev/video1 (since I have a...
View ArticleHow to calibrate dual (stereo) camera and obtain data?
Hi, My knowledge of ROS/Linux is limited, so I'm hoping someone could kindly help me. I am using Virtual Box running Linux 14.04, and ROS Indigo. I am trying to use a dual camera setup in order to...
View ArticleIssue with usb_cam: select timeout yuyv usb_cam package
Hello, so my issue has to do with the yuyv pixel format in the usb_cam package. My launch file and everything works well with mjpeg and I can't understand why. I have installed and reinstalled OpenCV...
View ArticleKinetic usb_cam
I want to use a camera using kinetic distribution but I cannot find any camera driver which provide me `/image_raw` and `camera_info`. In indigo I used `usb_cam`, how could I perform the same thing in...
View Articleusb_cam latency when using low fps
I am using the **usb_cam** driver package and **rqt_image_view** to view the image from a USB camera. The problem I'm facing is that the latency of the displayed image increases a lot when I drop the...
View Articleusb_cam-test.launch exit code -11
usb_cam works fine on my computer ubuntu14.04, but when it turns to the arm firefly rk3288 ubuntu 14.04 , i got the error exit code -11 when i launch the file usb_cam-test.launch, the precise info is...
View Articleusb_cam exit code-11 on arm firefly rk3288
i launch the example usb_cam-test.launch on my computer it works, but when it turns to the arm firefly rk3288 i got the error: firefly@firefly:~$ roslaunch usb_cam usb_cam-test.launch ... logging to...
View ArticleGetting started with usb_cam
I'm new to ROS and using for a research project. Trying to get a usb_cam node up and running which will then create a .bag file to perform SLAM with. I compiled the SLAM library I want and tested with...
View ArticleGetting started with usb_cam
I'm new to ROS and using for a research project. Trying to get a usb_cam node up and running which will then create a .bag file to perform SLAM with. I compiled the SLAM library I want and tested with...
View Articleusb_cam package and head_camera.yaml missing
Hello, I am new to ROS. I have been trying to do usb camera integration into a robotics project at our university's lab. I will write the steps i did and the errors that i got. 1. I went into my...
View ArticlePublishing compressed images directly for 120fps streaming
Hi, I have a usb camera able to out mjpeg up to 120fps. I would like to send this video stream over a wifi network to a remote node. So far using image_raw/compressed topic re-encode video stream and...
View Articleusb_cam and image_view keeps giving "videre INI" error
I'm using usb_cam and image_view packages to capture images from a usb camera. However, after I launch the nodes, the image_saver node in image_view package keeps giving me the same errors: Videre INI...
View ArticleV4L2_CID_FOCUS_AUTO is not supported.
Whenever I run the default test file from the usb_cam package and use a recent bought camera I get the two following statements: V4L2_CID_FOCUS_AUTO is not supported. [WARNING] unknown control...
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