This repository implements ROS packages to detect objects using ROS, yolov5, and to classify and track single objects using Deepport algorithms. The source code of this repository is as follows.

• mikel-brostrom/Yolov5_DeepSort_Pytorch
• ultralytics/yolov5

This repository is described in Korean and English, and please refer to the following link.

• 한국어
• English

• Train Custom Data(External Link)
• Training the RE-ID model(External Link)

• YoloV5 runs in Python 3 environments. Therefore, before running the package, you must configure the node using Python 3 to run in the ROS Medloic environment.

  sudo apt-get install python3-pip python3-all-dev python3-yaml python3-rospkg
  sudo apt-get install ros-melodic-desktop-full --fix-missing
  sudo pip3 install rospkg catkin_pkg

• Error occurs when using cv_bridge in python3 environment. Therefore, you should rebuild the cv_bridge according to the melodic version.

  sudo apt-get install python-catkin-tools python3-catkin-pkg-modules
  # Create catkin workspace
  mkdir catkin_workspace
  cd catkin_workspace
  catkin init
  
  # Instruct catkin to set cmake variables
  catkin config -DPYTHON_EXECUTABLE=/usr/bin/python3 -DPYTHON_INCLUDE_DIR=/usr/include/python3.6m -DPYTHON_LIBRARY=/usr/lib/x86_64-linux-gnu/libpython3.6m.so
  
  # Instruct catkin to install built packages into install place. It is $CATKIN_WORKSPACE/install folder
  catkin config --install
  
  # Clone cv_bridge src
  git clone https://github.com/ros-perception/vision_opencv.git src/vision_opencv
  
  # Find version of cv_bridge in your repository
  apt-cache show ros-melodic-cv-bridge | grep Version
      Version: 1.13.0-0bionic.20210505.032238
  
  # Checkout right version in git repo. In our case it is 1.13.0
  cd src/vision_opencv/
  git checkout 1.13.0
  cd ../../
  
  # Build
  catkin build cv_bridge
  
  # Extend environment with new package
  echo "source install/setup.bash --extend" >> bashrc

• Run clone with a repository that is dependent.

  cd your_workspace/src
  git clone --recurse-submodules https://github.com/jungsuyun/yolov5_deepsort_ros.git
  cd ..
  catkin_make

  If you did not do --recurse-submodules, you must run git submodule update --init.
• Ensure that all dependency information in Node is met. The package works with Python 3.6 or later and requires several dependency packages to be installed.

  pip3 install "numpy>=1.18.5,<1.20" "matplotlib>=3.2.2,<4"
  pip3 install yolov5
  pip3 install -r requirements.txt

• Github prevents you from uploading more than 100MB of files. Therefore, you should download the weight file associated with Deepport.
• Download the Depsort-specific weight file. Download the ckpt.t7 file to the path scripts/deep_sort_pytorch/deep_sort/deep/checkpoint/.

• The yolov5 detection node runs as follows:

  roslaunch yolov5_deepsort detector.launch

  By default, the image topic that performs detection is /image_raw. If you want to change the Subscribe image topic, you need to modify the following part of detector.launch.

  <arg name="image_topic"	                default="/image_raw"/>

  If you want to detect only one or a few objects, not multiple objects, you need to modify the following parts of detector.launch. If you want to detect the entire class, you must enter None, and if you want to detect only a specific class, you must enter the class name.

  <arg name="class_name"                  default='None'/>
  <!-- <arg name="class_name"                  default='person'/> -->

• yolov5 depthort node runs as follows:

  roslaunch yolov5_deepsort tracker.launch

  By default, the image topic that performs detection is /image_raw. If you want to change the Subscribe image topic, you need to modify the following part of detector.launch.

  <arg name="image_topic"	                default="/image_raw"/>

  The initial value of the class that performs tracking is person. If you want to track another class, you need to modify the next part of 'detector.launch'.

  <arg name="class_name"                  default='person'/>

• /image_raw : Subscribe Image topic to detect objects.

• /detected_objects_in_image
  • string Class
  • float64 probability
  • int64 xmin
  • int64 ymin
  • int64 xmax
  • int64 ymax
• /detections_image_topic : Issue Image topic with bounding box, class name entered.

This error occurs when a python package related to cv_bridge_boost is not found. Open the cv_bridge/CMakelist.txt file in the folder where you installed the cv_bridge package and modify found_package(Boost REQUIRED python3) as follows:

find_package(Boost REQUIRED python3-py36)

Then build and run cv_bridge again.

This error is caused by not building yolov5_deepport package. Go to catkin_ws, catkin_make and run the package again.