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PIPER

PIPER (Probabilistic Inference based Platform for Essential problems in Robotics) is a modular package that provides support for algorithms that use probabilistic inference on factor graphs to solve various robotics problems. Each module can be independently installed and implements an easy ROS interface for that algorithm to run on any simulated or real robots. Currently PIPER supports the following algorithms:

  • GPMP2 - Gaussian Process Motion Planner 2
  • STEAP - Simultaneous Trajectory Estimation and Planning
  • more coming soon ...

PIPER is being developed by Mustafa Mukadam at the Georgia Tech Robot Learning Lab. See documentation for information on usage and development.

Table of Contents

Prerequisites

  • Install ROS. We have tested up to ROS Kinetic on Ubuntu 16.04.
  • Install GPMP2 C++ library.

Compilation and Installation

  • Initialize a catkin workspace (if you are using an existing catkin workspace this step is not needed)

    mkdir -p ~/piper_ws/src
cd ~/piper_ws/src
catkin_init_workspace

    Before running setup the environment variables

    source ~/piper_ws/devel/setup.bash

  • Clone this repository in ~/piper_ws/src

    git clone https://github.com/gtrll/piper.git

  • To compile only the piperbase library, in the catkin workspace directory do

    catkin_make

  • Otherwise, to install some module, for example, X: first make sure to install dependencies for X, besides the prerequisites for piperbase, then do

    catkin_make -build_flag_X

  • Similarly, to install multiple modules, for example, X and Y: install all their dependencies and then use their appropriate flags together

    catkin_make -build_flag_X -build_flag_Y

    See table below for currently supported modules, their dependencies and build flags

    Module Other Dependencies Build Flag
    GPMP2 None -DBUILD_GPMP2_INTERFACE:OPTION=ON
    STEAP None -DBUILD_STEAP_INTERFACE:OPTION=ON
    ALL All from above -DBUILD_ALL_INTERFACE:OPTION=ON

Questions and Bug reporting

Please use Github issue tracker to report bugs. For other questions please contact Mustafa Mukadam.

Citing

If you use PIPER in an academic context, please cite any module/algorithm specific publications you use, and cite the following:

@article{mukadam2017piper,
  title={{PIPER}},
  author={Mukadam, Mustafa},
  journal={[Online] Available at \url{https://github.com/gtrll/piper}},
  year={2017}
}

FAQs

  • Q: Cannot find trajectory_control server error

    A: To be able to run the included examples you need to have an action server set up in your real or simulated robot's API. See trajectory_control_topic in robot config.

License

PIPER is released under the BSD license. See LICENSE file in this directory.