How to use ROS with 4 Realsense D435 depth/IR to create volumetric holograms
How to use ROS with 4 Realsense D435 cameras to create volumetric holograms? Similar to how it's done by Intel in this video: https://www.youtube.com/watch?v=9oQDz_cfUlo I will provide a reward for the...
View ArticleCamera for Turtlebot 2 with Skeleton Tracking (2018)
Hi All, I am new to ROS and now exploring Turtlebot 2 and I would like to add-in the skeleton tracking features for my Turtlebot. After doing some web searching, I found that the skeleton tracking...
View Articleimage stream using camera
Hello guys, My question might seem easy for many since i am still fresh in Ros and Opencv. I am following the tutorials provided on Ros Website. I am going through the tutorial ''Converting between ROS...
View ArticlePose estimation error with ar_pose
I am using ar_pose package to estimate the pose of aruco marker. The camera I used is the gazebo camera. The description of the camera is following in urdf file:...
View ArticleAPI for changing a camera resolution
What is the standard ROS way for implementing on-the-fly resolution changing for a camera node? I haven't found any official articles on this, also I haven't found any popular camera nodes, supporting...
View Articlerviz Camera doesnt render input image & geometry
Hello, I'm trying to overlay image & render in one window using next tutorial http://wiki.ros.org/rviz/DisplayTypes/Camera. Looks like all input is correct. Unfortunately I've got only black...
View ArticleHow to implement a semantic camera in ROS + Morse
Hi ROS community! :) I'm a pretty beginner in ROS and I'm trying to implement a [**semantic camera**](https://www.openrobots.org/morse/doc/1.2/user/sensors/semantic_camera.html) in ROS + Morse +...
View ArticleImages from fisheye camera are displayed correctly with BGR8 encoding but not...
Hi, I want to output grayscale images from a fisheye camera (FOV < 180 degree). I understand that ROS currently doesn't support fisheye [distortion...
View ArticleInsta360 camera support
Has anyone tried to use the Insta360 Pro camera with ROS? I don't see any official ROS support on their site.
View ArticleHow to change pitch of camera in Gazebo?
I am working on a TB3 simulation in Gazebo as https://www.youtube.com/watch?v=RgOvX3rUsI4 I want to change the pitch of the camera on TB3 to look lower, so that TB3 still can see the ball even it is...
View ArticleCreate a subscriber to an Image topic
Hi, Im trying to wrtie a node that subscribes to a image topic, however, after almost copying the ros tutorial, I keep getting an error. The relevant parts of my code are: ros::NodeHandle nh;...
View Articleread the sensor data of gazebo - sdf model in ROS
As I understand with plugin and urdf and xacro we can publish the sensor data (lase_ camera_ contact ...) in rostopic , using "urdf_spawner" in gazebo_ros package. I am wondering if there is way to...
View ArticleHow to execute a ros callback just once
I want to subscribe to openni's "camera/rgb/camera_info" topic to get the camera matrix. Since the matrix doesn't change, I would like to execute the callback just once. How could I achieve this? Is...
View ArticleMonocular Camera and 2D Lidar calibration
I have a monocular camera and a 2d lidar placed on top a platform, both of units are static and relative to each other, I wanted to know the procedure for calibrating both units. Is there an package...
View Articlerviz Camera display incorporating CameraInfo operational parameters?
Does rviz support incorporating the operational parameters described in the camera_info message ([sensor_msgs/CameraInfo](http://www.ros.org/doc/api/sensor_msgs/html/msg/CameraInfo.html "CameraInfo"))...
View Articlewhite balance problem for USB camera
Hi All, I have an Orbbec Astra Pro camera and I can get the RGB image using libuvc_camera package. However, the RGB image I get doesn't look very good. You can see the image below.  in a ROS node in **ROS kinetic, Ubuntu 16.04**. I build a catkin package and included the camera's API...
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