How to start creating a package/node in ROS?
Hello, I started some weeks ago with ROS, now I want to write a node (or nodelet or package) for my stereo-camera-system (2 Point Grey Flea3 GigE-Cameras). The pointgrey-camera-driver for ROS doesnt...
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 Articleis it possible to add camera object to RVIZ?
I need to add a camera object ,which is attached to end-effector of a manipulator, to RVIZ. I want to subscribe images in a Node and process them. Is it possible? How?
View ArticleHow do I capture images from a wifi camera?
Hi, i am new at this so I need your help, I need to capture images from a wifi camera( this in particular SJ4000 WIFI). I had thought of doing it using the usb_cam and changing the /dev/video0 for the...
View ArticleLower Resolution of Kinect One
Hi folks, I am trying to lower the resolution of the Kinect One published images to 640x240 (resolution that my application needs)? I am subscribing to the topic published by the Kinect One:...
View ArticleHow to use Robotino camera for object tracking
Hello, In my project, I am required to use the robotino to track the movement of an object using a camera and then make the robotino follow it. How should I go about it? I am thinking the first step...
View ArticleTroubleshoting about the bringup
Hello im triying to execute roslaunch turtlebot_bringup 3dsensor.launch and after i obtain this answer from the terminal: [INFO]Opened 'SensorV2' on bus 2:13 with serial number '000000000000000000' ......
View ArticleHow to use nao camera nodelet?
Hi, I have a problem when launching `roslaunch naoqi_sensors camera.launch`. I get an error message telling me that the system cannot find the *camera_nodelet.xml* file in the nao_sensors folder. The...
View ArticleRobotic Arm for pick and palce
Hi all, Any one can advice me, the ideal required sensors for pick and place application using a robotic manipulator with ROS support. I have generally looked at things like Kinect and stereo cameras...
View Articlerviz seg faults when adding camera, depth cloud or image displays
Hi, When I try to add one of the three (Camera, Depth Cloud, Image) displays in rviz, it immediately seg faults. gdb gives me the following output: Program received signal SIGSEGV, Segmentation fault....
View ArticleCamera / Perception Tutorials in ROS
Hello, I'm working with 2 robots, each one with one camera. I'm first simulating the robots. Are there any tutorials about Vision in ROS? Where you can learn the basics? I had courses in Image...
View ArticleGazebo camera plugin rendering meshes in wrong order
Trying to load a URDF model in Gazebo, and everything looks good in the Gazebo window. The model includes a Kinect , and when I look at the camera output, it renders the (.STL) meshes in the wrong...
View Articlelibuvc_ros not building
Hello, I'm trying to use this package thero: http://wiki.ros.org/libuvc_camera But I get this error when I do catkin_make: CMake Error at libuvc_ros-master/libuvc_camera/CMakeLists.txt:9...
View ArticleChanging pixel size of a URDF camera
How do I change the pixel size of my URDF camera? Anyone knows? For example for this urdf file:...
View ArticleCan't find Point Grey Camera in a new virtual machine
Hello, I have used POINT GREY FIREFLY MV FMVU-13S2C digital camera to work on Ubuntu 10.04 and ros electric(I am gonna call it VM1) and it worked very well. But when I install another virtual machine...
View ArticleXtion doesn't work on ROS indigo
roslaunch openni2_launch openni2.launch camera:=camera depth_registration:=true load_driver:=true publish_tf:=true shows the following: ... logging to...
View ArticleROS nodes for aerial vehicle localization
Hey there, I'm developing an aerial vehicle which is equipped with a GPS, IMU and bottom camera (pointed at the ground for target tracking). I was looking for a way to fuse the data, with two...
View ArticleI connected two smartphone cameras(Android) using android_camera_tutorial
I connected two smartphone cameras using android_camera_tutorial and I expect received two topic but it just received only one topic please give me a answer that how to solve this problem. I think that...
View ArticleHow should I define the camera frames in my robot's URDF?
Hi, I have a URDF model for my robot and two cameras mounted on the robot's head (a Bumblebee and an Asus Xtion). My question is, how do I define the camera link frames and the frames for each of the...
View ArticleSlow Callbacks
I'm using a pioneer with a camera on top, and I'm trying to make the robot reach a position by reading an Aruco from the camera. The problem is that the camera is not updating the values fast enough....
View Article