How to Use YOLOv8 with ROS2

In this tutorial I explain how to use YOLOv8 with ROS2. We will create a custom message, a publisher and a subscriber.

ROS2: Foxy

The project is here:

[carnivorah]

Hello! I tried installing the project on Ubuntu 22.04 and ROS-Humble and everything went okay until I got to simulation, where everything launches correctly but there are no messages being published on the topic and no camera feed appears in RVIZ. Any solutions? Thanks!

[adityajambhale]

Hello, i am facing issues while installing ultralytics (it's build dependencies are not satisfied), i am using Ubuntu 20.04 and i tried with python 3.8.10 and python 3.7.5 it is still giving error please suggest what to do, i am not able to find solution anywhere else🥲

[kennetheladistu]

can i use this tutorial to integrate yolov8obb on ros2 using humble?

[aishRobotics]

Hey can i use the same code for jetson nano ROS 2 in real-time USB camera?

[nourishcherish]

is this project written by you. is there a github repo. i am not allowed to access gdrives at my work

[b_wahyufahrizalalfayyadh]

why you do not use file .xacro? i mean please give us the xacrofile

[architlahiri]

Hey, if u dont mind can you help me out? Im facing some issues.
I downloaded all the code from the link in the video description, followed all the steps, but did not get any output- as in there was no message output, just blank when i ran "ros2 topic echo /Yolov8_Inference". However all the models and the robot are loaded into gazebo just fine. I compared the topics published in my run versus the video, and i am missing
/rgb_cam/camera_info


/yolobot/odom

Using rviz2, the topic image_raw can be found under Yolov8_Inference, but when I move to add it, there is no image window and it shows "no image".

My ubuntu version is 20.04.6, using latest foxy distibution.

[nhatnet]

thanks for this project, could you make a same tutorial using yolov8 and use the tensorRT

[pablogomez]

Hey, excellent tutorial and very well explained. But I have one issue when I try to use my own pretrained model. I paste my 'best.pt' file on the yolobot_recognition/scripts folder, then in the python script 'yolov8_ros2_pt.py' I write the name of my pretrained model. When executed prints an error saying that There is no file or directory called 'best.pt'. Any idea where the error is?

[nourishcherish]

i see few syntax mistakes in your code just by looking at it.

[howardkanginan]

Hi!

I have an error after I source the yolobot setup.bash. It says when I run the ros2 launch yolobot_gazebo yolobot_launch.py command, it says gazebo_ros not found. I've install the ros2 iron gazebo package as well. How can I fix this?

[dafech_]

Hi, again. I commented your code a while back, but now I have another question. If you were to subscribe to multiple cameras at the same time, let's say one in the front, one in the right, one in the left and one in the back, you would need to use the threading library in your first code too? Thank you :)

[najibmurshed]

Thanks a lot for the video. I had some questions. I have a ros1 melodic environment and have a custom yolov9 model that detects specific objects. Can I still use your code and just replace my model .pt file instead of yours? If you have any suggestions please let me know.

[sharingmylittleinsight]

thank you very much brother, it's really help me to finish my study project.

[jungahkwak]

Thank you for your REALLY NICE VIDEO!
Im trying the video, but I have some issues during 'colcon build'.

[error] ModuleNotFoundError: No module named 'catkin_pkg'

I tried to solve the error
1. pip install catkin_pkg
2. source /opt/ros/foxy/setup.bash
3. added “source /opt/ros/foxy/setup.bash” in “.bashrc” file
but it's not working.
Any idea about this error? Thank you!

[mdmahedihassan]

hello one problem, when I run ros2 topic list

yolobot inference is not there
how could I solve it?

[towerboi-zgit]

I dont know why when I run the code that you shown "Publisher already registered for provided node name. If this is due to multiple nodes with the same name then all logs for that logger name will go out over the existing publisher. As soon as any node with that name is destructed it will unregister the publisher, preventing any further logs for that name from being published on the rosout topic" This error come and the node is duplicated

[anshbhatia]

Great video! Can you please guide me how can I integrate this YOLO v8 with ROS2 code to camera for real time object detection?

[alperenkeser]

Great tutorial. Got a question though, is it possible to do "object pose estimation" with just RGB data? If possible, do you think using Point Cloud (just depth data) instead of RGB would make it better for pose estimation?

My case is detecting a pallet and it's pose, with a Kinect v1 camera.

[Moon-ueqb]

Hi. thank you for making video!! :)

But I have something problem.
I did < ros2 topic echo /Yolov8_Inference > then i got
WARNING: topic [/Yolov8_Inference] does not appear to be published yet
Could not determine the type for the passed topic

How can i fix this error?
sudo apt-get install ros-humble-ros-ign-bridge
sudo apt-get install ros-humble-ros-pkgs
sudo apt-get install ros-${ROS_DISTRO}-ros-gz"
I tried them but still have error. Plz help me.