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Unified Arm-Hand Manipulation via Optimization-based Motion Synthesis

Repo for motion synthesis code and experiment results from analyzing unified manipulation on arm-hand combinations.

Paper was accepted to IEEE ICRA 2023! Corresponding email: v.patel@yale.edu.

@inproceedings{patel2023unified,
  title={An Analysis of Unified Manipulation with Robot Arms and Dexterous Hands via Optimization-based Motion Synthesis},
  author={Patel, Vatsal V and Rakita, Daniel and Dollar, Aaron M},
  booktitle={2023 IEEE International Conference on Robotics and Automation (ICRA)},
  year={2023},
  organization={IEEE}
}

Aggregated Results from Paper

The aggregated results as shown in the paper for both the KUKA and UR10 arms on all 5 experiment tasks are as follows.

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Optimization weight versions tested:

  • Arm-Hand-Config α prioritizes object pose accuracy
  • Arm-Hand-Config β prioritizes joint and object motion smoothness

Additional weight versions that prioritize other motion attributes were also tested, and those results are below!

KUKA Results

The results for the 7-DOF KUKA arm with the diffrernt hands on all 5 experiment tasks are as follows.

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UR10 Results

The results for the 6-DOF UR10 arm with the diffrernt hands on all 5 experiment tasks are as follows.

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Task-based Results

The results for each experiment task averaged across the 2 robot arms (KUKA and UR10) are shown here. The alpha weight versions are shown here for brevity.

(a) Smooth Helical Task

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(b) Sharp Path Task

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(c) Cup Pour Task

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(d) ICRA Collide Task

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(e) Small Movt Task

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More Objective Weight Versions

Results from other optimization weight versions tested are below:

  • Arm-Hand-Config γ prioritizes avoiding singularities and joint limits
  • Arm-Hand-Config δ prioritizes reducing joint torques
  • Arm-Hand-Config ε prioritizes collision avoidance

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Repo for motion synthesis code and results from Unified Manipulation work.

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