Questions tagged [camera]
The camera tag has no usage guidance.
430
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Programatically set the camera pose in gazebo or rviz
Hello,
I am trying to automatically generate a bunch of videos of a robot manipulating objects. I figured out a way to record the screen from gazebo or rviz, but I can't find any tutorial about how to ...
Dimitar Simeonov
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1
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23
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Camera is not detected through pylon-ros-camera package
OS:
Distributor ID: Ubuntu
Description: Ubuntu 20.04.6 LTS
Release: 20.04
Codename: focal
I installed pylon_7.5.0 and was able to build the ...
- 121
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60
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LiDAR and Camera Fusion
Can anyone tell me about how can I fuse LiDAR and Camera data in a way that the PointClouds are colorised based upon the Image color.For example (in Gazebo Simulation) in an autonomous vehicle there ...
- 45
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131
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ROS2 Humble camera_ros camera_node gives sporadic segmentation faults. How can I fix this?
I am trying to create a simple, repeatable recipe for setting up IMX219 picam2 using ROS2 Humble on a Rasberry Pi 4. I am trying to install as much from binaries as possible, starting from the Ubuntu ...
- 119
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26
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Covariance Matrix for the Measurement Model using a Camera
I'm currently taking an introductory course in Autonomous Systems where our project involves implementing the FastSLAM algorithm for an Alphabot2. This project uses a camera and Aruco markers as ...
- 11
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48
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Recommendations for multi-camera fusion for 360 deg image?
Looking for recommendations for ROS nodes or C++ libraries that can take multiple independent camera image streams and combine them into a single 360 deg image stream. I’m looking for something that ...
msmcconnell
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2
answers
5
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Camera / 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 ...
End-Effector
0
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1
answer
21
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Camera topics visible in topic visualization, but not in `ros2 topic list` -- [Ros2, Gazebo Classic]
I've spent way too long trying to figure this out so any help would be really appreciated.
I am working on porting a simulation setup over to ros2 from ros1. I am using the PX4 Gazebo Classic ...
0
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1
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144
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Gazebo11 camera images to ROS 2
Hello Robotics Community!
I'm trying to implement a ROS 2 topic to view the images from a camera I have added to the iRobot Create 3 simulation for classic Gazebo.
OS: ubuntu-desktop 22.04
ROS 2: ...
- 11
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1
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27
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Photographing an object that's moving past a stationary camera
I want to automatically snap high-resolution photos of objects moving past a camera (or a video camera). Due to limited computational power, I need to keep as few frames as possible. I need the entire ...
- 101
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139
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Can't use Ignition Gazebo thermal camera plugin with gpu lidar sensor
I am using Ignition Gazebo Citadel to simulate a differential drive robot, like https://gazebosim.org/docs/citadel/sensors. I am adding a thermal camera to the model (https://gazebosim.org/api/sensors/...
- 13
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122
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Disable shadows for one camera in Gazebo Sim
I have a Gazebo Harmonic simulation, in which I have some lights which cast shadows. I would like to keep those shadows for the overall simulation (i.e. the camera of the GUI), but disable all shadows ...
- 2,139
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2
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124
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Need advice on implementing ROS2 knowledge in a hardware-based autonomous robot project for navigation and object manipulation
I'm new to ROS2 and looking for guidance on implementing my knowledge in a project. I've learned concepts like publisher-subscriber, services, TF, URDF, RViz, Gazebo, and Navigation2. Now, I want to ...
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2
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199
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Traffic cone detection and mapping
as part of formula student car racing I need a SLAM algorithm that will recognize cones and will build a map (there will be a few laps therefore map is needed for optimal path). The cones are of ...
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ROS2 Jazzy (Python) - How to filter a 360º Pointcloud based on a RGB camera's FOV?
First of all, I am pretty new to the robotics scene, so please forgive me if I end up saying something wrong.
I am running a simulation on Gazebo+ROS2 Jazzy (Ubuntu Noble) that contains a robot with a ...
0
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1
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20
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Controlling a Commercial CNC Machine with ROS
I am working on a project to use a 3D camera to monitor a free-moving object as it is being operated on by a cnc. If the object happens to move, the camera will monitor that movement and will adjust ...
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7
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How to implement intrinsic parameter calibrated to PMD Flexx 2
I am using PMD Flexx 2 with Ros 1. The package does not have anywhere to modify the lens parameter, as it says it reads from the camera module. Below is the lensParameters.hpp file. I found it from ...
- 1
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14
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Intel RealSense D415 ROS2 Jazzy Issues
Has anyone been able to get the D415 working with ROS2 Jazzy? The initial wrapper was released a few days ago.
I am trying to first build the realsense2_camera_msgs then the realsense2_camera packages ...
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43
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How To Setup Pi Camera Livestreaming with ROS2 Humble on Ubuntu 22.04
I am trying to integrate a raspberry pi camera into my robotic platform running on ROS2 Humble Hawksbill on Ubuntu 22.04. It works fine with all of the built in libraries on the default raspberry pi ...
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Query about Event Camera
So generally when we try to use the camera module to get the image data, it publishers at regular intervals even if there is no change in the environment. But I have recently come across this Event ...
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camera plugin doesnt work in gazebo
im trying to add a camera to my robot
here is the urdf file
but when i start the siuation the camera doesnt appear neither in rviz or gazebo also camera info is not mentioned in topics .
gazebo ...
0
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37
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How to use Gazebo Fortress camera plugin from URDF?
I am trying to define a regular camera to be used in Gazebo Fortress from a robot description topic created from a URDF file. In my urdf.xacro I have included the camera plugin like so:
...
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26
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Turtlebot4 - Oakd Camera topics missing on workstation but seen on turtlebot4 rapsberry pi device
I am working with turtlebot4 on an object detection project. I want to access its oak-d camera on my workstation.
The issue I face is, when I do ros2 topic list on ...
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2
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142
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I need to simulate a realsense depth camera in gazebo ignition fortress & connect it with ros 2 humble hawksbill. I can't find any resources for it
Every relevant resource that I was able to find so far seems to be intended for either gazebo classic 11 or ros 1 noetic ninjemys. As far as I understand, there are significant differences between ...
- 21
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14
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Sensor Synchronization, IMU and Bundle Adjustment
Sensor synchronization is a general issue with SLAM systems, the ideal is having an IMU hardware synchronized with cameras.
There are a couple other possible variations though. One variation is ...
- 393
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53
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Turtlebot4: OAK-D camera stops publishing messages after few seconds on bootup
I am facing a small issue in getting the topics from the camera on turtlebot-4.
Issue: When the robot boots up and I send the command "ros2 topic list", I ...
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21
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TurtleBot3 tutorial (SLAM) - Camera data is not published (/camera_info)
I am following the Turtlebot3 tutorial about SLAM at the following link. https://emanual.robotis.com/docs/en/platform/turtlebot3/slam/
(Symptom)
I could run the SLAM node, but in RVIZ, there is a ...
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1
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79
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Intel RealSense D455 is not working with ROS noetic in Jetson Orin Nano
I tried connecting the Realsense D455 camera, to get point cloud information from the camera. Works fine on a PC. But when connected to Jetson Orin Nano, its shows up with the SDK and Realsense viewer ...
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18
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Screen cropping and camera issues of Webots
An issue occurred where the screen was cut off when running webots. Also, I have a question because when I overlay the camera, the size is too small and I cannot drag or move the position with the ...
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1
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17
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Webots: add a RosCamera to ros_automobile controller?
I took the boomer example project and changed it to a ros_automobile controller by copying the source of ros_automobile into my project. It works and I can put it into gear and set the throttle and ...
- 3,367
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29
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Gazebo camera plugin not sending data to ros
I am on ubuntu 18.04 using gazebo 9 and ros melodic. I am able to run roslaunch and open gazebo with ros and connect it to ardupilot SITL. When i check rostopic in another terminal i am not getting ...
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46
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Projection of boundig box from lidar frame to camera image
i am trying to project the bounding box in 3d from lidar frame to camera image in 2d. I am doing this work in ignition-gazebo simulation. so, basically there is no real hardware except my pc. there is ...
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404
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How to get a topic name in a callback function (Python, Ros2)
I have two cameras subscribing camera1/image_raw and camera2/image_raw respectively. And both subscribers call image_callback when they received any topic. I want to show camera1 image in window1 and ...
0
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36
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Rviz displays camera image incorrectly after changing gazebo sensor resolution
I simulate a camera:
...
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55
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gazebo garden simulating plane with camera
i am trying to simulate a plane with camera in gz garden
i want to see resolution and foV settings
is it possible doing this in garden do i need to use ROS
or should i just switch to classic
it would ...
0
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0
answers
133
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Camera node does not publish compressed image when launched in a composable container
I'm working on a launch file to launch the v4l2_camera node. I first launched it as a normal node, which worked as expected - it publishes a raw image, and also uses the image transport plugins to ...
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111
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Single Board Computer for Real-Time Object Detection
I am developing a pallet detection and pose estimation algorithm with YOLOv3, using a depth camera - R435.
Since real time classification is a burden on hardware, I am looking for something that is ...
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18
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Camera info problem when trying to see topic in rqt
I am executing a camera_info topic with as this:
...
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119
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I am trying to use opencv_cam pkg in ros2 humble with a csi stereo camera imx219-83 in a jetson nano and I get green screen
I am trying to use opencv_cam in ros2 humble for a csi stereo cam in a jetson nano. When I run the node : ros2 run opencv_cam opencv_cam_main ,it publishes the ...
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1
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32
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Using SLAM in window cleaning robot
With my industrial design project group we are in the early stages of developing a window cleaning robot for tall buildings.
We would like to have this robot map the facade of the building using SLAM. ...
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41
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How to scale gazebo garden camera_info with resolution
for background, I'm detecting the pose of objects based on detected pixels using image_geometry. I've tested this code IRL with an oak-d and found it accurate against a ground truth, so it's working ...
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26
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left/camera_info, left/image_raw and right of them not published
I use an OAK-D Pro W camera for ORB-SLAM3 on Ubuntu 20.04 inside WSL 2 (Windows 11).
I run the following command
...
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1
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90
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add camera plugin in gazebo
Hi, I have added camera plugin in a .urdf file but then I could not added in a launch.py file because of that image topic not published.
Is my urdf file correct? And how can I added launch file to ...
gurselturkeri
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1
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184
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using usb_cam from remote computer. Cannot identify '/dev/video0': 2, No such file or directory
Hello everyone!
My configuration is the following:
ROS-master computer: Nvidia TX2 with Ubuntu 18.04, ROS melodic and package usb_cam installed on it
, and Logitech USB camera connected to it through ...
kozinovsky
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2
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92
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Point cloud misaligned with gazebo sensor plugin
Greetings. I have inserted a camera within my gazebo simulation via the gazebo plugin. The camera works as intended, however the point cloud generated does not match the camera picture. Since Octomaps ...
NotARobot
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133
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RViz plugin to visualize camera FOV
Hey guys,
Is there any RViz plugin which renders the field of view of a camera (like a 2D sector or 3D cone) in RViz?
Thanks
Originally posted by electrophod on ROS Answers with karma: 277 on 2022-05-...
electrophod
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1
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25
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Using robot_localization package does not filter odometry noise
Hello.
I'm trying to implement fusion of visual odometry (stereocamera) and IMU using the robot_localization package (EKF) for my autonomous robot vehicle. I've ...
bugino
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47
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Rviz Message filter dropping message with rosbag1
I have a bunch of rosbag1 bag files with images, velodyne point clouds, and radar point clouds. I've now attempted a couple different methods of playing rosbag1 files in rosbag2, such as ...
morten
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1
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5
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Visualize camera_info as a set of four image corner rays emanating from the camera origin in rviz?
I think this already exists (maybe it was one package among many in a github repo used in a robotics competition a few years ago), but I'm not finding it now. It would be nice to see where the ...
- 3,367
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What is the exact format and size of Image() object?
I cannot figure out what is the exact format of the sensor_msg Image() file. When I issue the command:
rostopic echo /camera/image_raw
I get a massive output ...
Tejas Rao