Abstract
In this paper, we study a vision-based reactive adaptation method for contact-rich manipulation tasks, based on the compliant control and learning from demonstration. For contact-rich tasks, the compliant control method is essential, especially when interacting with a deformable object with unknown properties, such as pizza dough. Learning from demonstration (LfD) provides a solution for this challenging task. However, the generalisation capabilities of LfD for deformable object manipulation tasks are still a challenging and opening issue, especially for unknown and dynamic tasks. Therefore, in this work, we investigate the vision and force-based perception feedback to enhance the generalisation of the LfD outcomes. The computer vision algorithm was developed to recognise the shape of the object and calculate the deviation between the desired shape and the current shape. The deviation of shape adjusts the parameters of learned primitive skills encoded by Dynamic Movement Primitives (DMPs). We adopt the pizza dough rolling task as the typical case to evaluate the performance of the proposed method. The shape and thickness of the dough can be made to the desired shape and thickness.
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Notes
- 1.
Note nonprehensile manipulation means manipulation without grasping, such as pushing, flipping, throwing, and squeezing.
- 2.
Note we ignore the friction force in practice.
- 3.
Note the pizza dough is not as large as the real pizza dough, because the roller is not large enough. The proposed method can be employed for big dough if we adopt a large roller.
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Acknowledgements
This work was supported in part by the H2020 Marie Skłodowska-Curie Actions Individual Fellowship under Grant 101030691.
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Si, W., Guo, C., Dong, J., Lu, Z., Yang, C. (2023). Deformation-Aware Contact-Rich Manipulation Skills Learning and Compliant Control. In: Borja, P., Della Santina, C., Peternel, L., Torta, E. (eds) Human-Friendly Robotics 2022. HFR 2022. Springer Proceedings in Advanced Robotics, vol 26. Springer, Cham. https://doi.org/10.1007/978-3-031-22731-8_7
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