Franka-Emika-Panda-Manipulation-via-Learning-through-demonstration

About

This repository is for the research internship done at TU Munich, under MSc Esteve Valls and Prof Dongheui Lee.

The main goal of this project is to control a Franka Panda Arm, by feeding in trajectories performed by the right palm of user.

The project is divided into 3 subparts -

1. 3D Pose Estimation and Recording Trajectories of right palm of user through MediaPipe
2. After recording same motion multiple times, we get a learned trajectory with the help of DMPs
3. This learned trajectory is then implemented on a Franka Panda Simulation in Gazebo

Link to Paper. Link to Final Presentation.

Instructions

Installation -

pip install -e .

Clone the original franka_ros repo (by franka emika), and install (for ros noetic) -

sudo apt install ros-noetic-libfranka ros-noetic-franka-ros

Replace the following files in the franka emika repo, with the files with the same name from this current repo.

1. src/franka_ros/franka_example_controllers/src/cartesian_impedance_example_controller.cpp
2. src/franka_ros/franka_example_controllers/include/cartesian_impedance_example_controller.h
3. src/franka_ros/franka_gazebo/world/stone.sdf

Step 1 - 3D Pose Estimation and Recording Trajectories

Follow the instructions (marked by #-->) given in webcam_pose_estimation.py to adjust it depending on whether you want to use your default webcam, or a pre-recorded video for recording a trajectory. Multiple trajectories (4-5) need to be recorded to get a good learned Trajectory in the next step.

Step 2 - Obtaining Learned Trajectory with help of DMPs

Follow the instructions (marked by #-->) given in demo_regression.py to get the learned trajectory from the previously recorded trajectories.

Step 3 - Implementing learned Trajectory on Gazebo Simulator of Franka Panda Arm

Update the trajectory file name in src/franka_ros/franka_example_controllers/src/cartesian_impedance_example_controller.cpp (line 195), depending on whichever trajectory you are using (default is trajectory.txt - generated in demo_regression_IP.py (line 176))

To run -

cd catkin_ws

catkin_make -DCMAKE_BUILD_TYPE=Release -DFranka_DIR:PATH=~/libfranka/build

catkin devel/setup.sh

roslaunch franka_gazebo panda.launch x:=-0.5     controller:=cartesian_impedance_example_controller     rviz:=true 
# (this is the launch command for launching gazebo simulator)