IEEE/ASME Transactions on Mechatronics · 2024

Multi-scale Procrustes-based

3D shape control

Ignacio Cuiral-Zueco, Gonzalo López-Nicolás

Authors are with Instituto de Investigación en Ingeniería de Aragón, Universidad de Zaragoza, Spain.

Cite this paper

I. Cuiral-Zueco and G. López-Nicolás, “Multiscale Procrustes-Based 3-D Shape Control”, in IEEE/ASME Transactions on Mechatronics, vol. 29, no. 3, pp. 1738-1748, 2024, doi: 10.1109/TMECH.2023.3325934.

Abstract

The shape control problem involves deforming a non-rigid object into a desired shape. In this paper, we present a new 3D shape control method that can handle large deformations of texture-less objects. In particular, we use functional maps to generate surface points' correspondences between the current and the desired shape that serve as input for our Procrustes-based multi-scale control strategy. The main contribution is a multi-scale analysis with a relaxed rigidity assumption that defines scales based on geodesic distances to the grippers. Our method considers that objects may deform at different scales depending on the gripper actions applied to them. For this reason, our multi-scale analysis computes shape control actions defined according to gripper influence on particularly convenient scales. We present stability analysis and discuss several simulations and experiments.

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Acknowledgements

I. Cuiral-Zueco and G. López-Nicolás are with Instituto de Investigación en Ingeniería de Aragón, Universidad de Zaragoza, Spain. ignaciocuiral@unizar.es, gonlopez@unizar.es. Corresponding author: Ignacio Cuiral-Zueco. Address: C/María de Luna 1, 50018, Zaragoza, Spain. Tel. +34 876555556. This work was supported via projects PID2021-124137OB-I00 and TED2021-130224B-I00 funded by MCIN/AEI/10.13039/501100011033, by ERDF A way of making Europe and by the European Union NextGenerationEU/PRTR.


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