Questions tagged [camera]
The camera tag has no usage guidance.
399
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6
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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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4
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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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11
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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. ...
- 1
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13
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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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16
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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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2
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62
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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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73
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Sensors in Formula student racing
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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96
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Flir camera buffer issue
I am using Teledyne Flir monocular camera bfs-pge-27s5c-c for my project
when I connect it, it runs for a while, and then after some time it gives me this error:
...
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1
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14
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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
answer
42
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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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10
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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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1
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30
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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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4
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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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1
answer
16
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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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1
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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 ...
- 3,244
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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
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1
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7
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usb-cam using deprecated pixel format
I am using ubuntu mate 20.04 focal and i have installed ros noetic,
I am trying to use a logitech c920 webcam, however when i run
rosrun usb_cam usb_cam_node
i get the following error
[swscaler @ ...
golferGuy1145
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1
answer
3
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Camera feed frame_id
Very new to ROS but I have set up a CSI camera with ROS melodic, running on ubuntu 18.04 (On jetson nano). And I am trying to overlay a pointcloud on it in rviz, however the camera visualization doesn'...
Y009
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1
answer
10
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Autoware camera-lidar-calibration Error
I trying camera-lidar calibration.
Method is below.
https://autoware.readthedocs.io/en/feature-documentation_rtd/DevelopersGuide/PackagesAPI/sensing/autoware_camera_lidar_calibrator.html
But Error ...
ken_koba
1
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1
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38
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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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1
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7
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Flir Blackfly BFLY-PGE-31S4C (Power of Ethernet) not working with autoware?[SOLVED]
I need a technical support about how to connect to a Gige camera to our Astuff Spectra.
Currently my working environment are:
Device: Astuff Spectra
OS: Ubuntu 18.04
Platform: Autoware.ai + ROS 1
...
sudip
0
votes
2
answers
4
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Ximea package for ros-melodic
I am looking for a Ximea ros package for melodic but couldnt find any. I did however find the package for ros Indigo. I want to use the camera in Ubuntu 18.04 where Indigo is not compatible. Can one ...
shashank.shivakumar
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1
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5
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Is there a topic for camera FOV info?
Hi,
I'd like to publish info about the field of view of a camera, but I cannot find a standard topic for this information.
Before creating a custom topic I want to be sure that there is nothing just ...
- 184
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1
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5
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alwaysOn camera parameter Gazebo
Hi,
I was wondering how I could use the <alwaysOn>true</alwaysOn> tag in the ...
- 3
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1
answer
3
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Can I change which topic usb_cam is publishing?
Can I change the topic which each node publishes? I'm using usb_cam with multiple nodes and each node will run in different devices, I need them to publish on different topics so the server can send ...
サイトダニエロ
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1
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1
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Face detection with usb_cam
Hello, I'm following this video on How to use ros usb cam for face detection. In the las part, when I run:
...
jesusy
0
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1
answer
29
views
How can I move/zoom the camera in RVIZ?
Hi,
I'm using Ubuntu 16.04 and ROS Kinetic.
I'm trying to make an AR-Application. For that Issue I want to get a picture stream out of RVIZ.
I tried the camera-Display from RVIZ. to get an Image from ...
Lennart
0
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1
answer
10
views
How to publish camera data over ros?
HI,
I'm looking to use a usb camera to publish over ros for further computation.
Any idea on where I should get started? c
Originally posted by alam121 on ROS Answers with karma: 15 on 2020-02-05
...
alam121
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1
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7
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[ROS2] rviz crash when visualizing camera image
Hi,
I'm running a ROS 2 node that publishes sensor_msgs::msg::Image on the image topic.
The image is a greyscale image and I can ...
alsora
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1
answer
5
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ROS2: URL to camera_info yaml not being recognized
Running ROS2 dashing Ubuntu 18.04 bionic on x86.
URL to camera info yaml file not being recognized. The url is being loaded via the launch file as a parameter.
I have declared the parameter before ...
surfertas
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1
answer
1
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How to stop recording by camera node through an user input?
I would like to stop the camera node through a different node. I was trying to implement this by sending a message through another node which is read by the camera node But, the problem is that the ...
nav3128
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1
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2
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usb_cam ros kinetic on raspberry pi 3 B
Hi,
My Raspicam v1 is not working on Raspberry pi B. I tried various methods to start it with command raspistill -v -o img.jpg and also with raspicam_node package of ROS, but still it did not show any ...
rutujaharidas
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2
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4
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Which camera for turtle3 burger and how to plug it?
I sent these questions to [email protected] , and they answered me to ask them here.
I am preparing a course with Turtlebot3 burgers for Master 2 students at a French engineers school called ...
Eyrignoux
0
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1
answer
1
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Rviz middle button zooming instead of move x/y
I'm playing around with Rviz plotting a point cloud. Trying to move the x/y with middle click, but it's zooming instead. Left button behavior is correct (rotate). Right button behavior also correct ...
thinkpadfanboy
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1
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1
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Running usb_cam across VNC and getting Cannot identify '/dev/video0'
Hello guys, I was running a docker container that contains the normal ros packages and usb_cam. I visualized the ubuntu interface through a VNC (localhost:5900) and tried ...
Kolohe113
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1
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1
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Finding the name of a camera
I'm trying to run the following ros command:
rosrun ros_flydra camhistograms --camera /Basler_XXX/image_raw
Where in the documentation for flydra, Basler_XXX is ...
mbfg
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1
answer
1
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Combine two parent-child transformations for common link
I am trying to connect two tf trees via a known link by following the advice from @tfoote here. One link belongs to the robot tf tree and the other belongs to a camera tf tree that is not part of the ...
ceres
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1
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7
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VIDIOC_S_FMT error 5 , Input/output error
Hello,
When i run the node usb_cam in ros kinetic under ubuntu 16.04 I have this error:
...
nana
0
votes
1
answer
9
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sensor_msgs/Image data to sensor_msgs/CompressedImage data
I have an industrial camera (DVP interface), and I added some code in the driver to convert the cv image into ros image data. I want to use this camera to test the fiducials package. But it needs to ...
anonymous38087
0
votes
1
answer
6
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How to publish tf between base_link camera
I want to publish Transform between camera and base_link. But i am not able to please help and I have seen the predefined packages but since I use ROS kinetic I cannot use those.
I have done this till ...
Sotte17
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1
answer
4
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Obtaining Camera Pose via TF
I have the calibration board fixed on the work station, and I have its world coordinates, entered them in URDF, all good. I used OpenCV's pose estimation module to find the board's pose (rvecs and ...
Jägermeister
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1
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1
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recording only header image_raw message
I would like to record using rosbag only the /usb_cam/image_raw/header topic excluding the data.
Tried:
rosbag record -a -x "/usb_cam1/image_raw/data"
But looks like it is not working. I ...
jptalledo
0
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1
answer
2
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How to get the correct X Y distance from depth camera
Hi, I would like to create TF for an object detected in OpenCV using depth camera. When I look at the code from the book "ROS Robotics By Example", they use the X, Y coordinate detected in ...
ytosclee
0
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1
answer
1
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Stereo Camera Info Subscriber Throws Error
I am trying to subscribe to the camera info topic provided by my stereo-camera using Python:
...
Jägermeister
0
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1
answer
7
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How to retrieve absolute pose in ROS
Hello,
i'm currently doing the detection of ArUco and Alvar fiducial markers (glued on a cube), by that trying to grasp the cube with the detection of the marker. The camera is mounted on the Panda ...
hpoleselo
0
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1
answer
2
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camera calibration algorithm
Hello everyone !
I wanted to calibrate my camera
( Bus 001 Device 002: ID 058f:3881 Alcor Micro Corp.)
screen
I did everything that was written in this article
and tried with this video
But nothing ...
Alishka2k15
0
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3
answers
4
views
How to subcribe 2 image topics with 1 node in same time?
Hi buddy,
My name is Toan. I am a newbie in ROS. Now, i'm using Kinect Camera and trying to subcribe 2 image topics with 1 node. But seem like my code is wrong something. If i try to subcribe 1 node ...
ToanJunifer
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1
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1
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No camera message received with tum_simulator
I am running tum_simulator in ros kinetic ubuntu 16.04
when i run $ roslaunch cvg_sim_gazebo ardrone_testworld.launch
i get the following warning,
...
boon
0
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1
answer
3
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USB_CAM error : Input/output error
Hi,
I want to use web-camera(Logicool Webcam C210)
I use usb-cam package,but I cannnot see the web-camera view.
My launch file is below,
...
takijo
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1
answer
1
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hz of our sensor's the topic was DECREASED, When I record some data with rosbag
Hello, experts.
I used rosbag to acquire our sensor data as camera, lidar.
You can reference below spec.
Camera Node : 1980x1208 (FHD, RGB), 20 hz
Lidar Node : 64 Channel, 20 hz
I recorded topics on ...
harderthan