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Yuhei Yoshimitsu

6 accepted papers

2025

Real-Time Shape Estimation of Tensegrity Structures Using Strut Inclination Angles

RA-L 2025

Tensegrity structures are becoming widely used in robotics, such as continuously bending soft manipulators and mobile robots to explore unknown and uneven environments dynamically. Estimating their shape, which is the foundation of their state, is essential for establishing control. However, on-boar

Cited by 1SourceScholar
2025

Uncertainty-aware Motion Planning based on Stochastic Forward/Inverse Kinematics Models for Tensegrity Manipulators

IROS 2025

Robots whose shape and stiffness are determined by internal forces generally have complex shape-stiffness relationships that depend on their structure. As a result, there are difficulties such as a decrease in shape reproducibility when the robot is not stiff, and a decrease in the range of motion w

Cited by 0SourceScholar
2024

Active Learning for Forward/Inverse Kinematics of Redundantly-driven Flexible Tensegrity Manipulator

IROS 2024poster

In flexible redundantly-driven multi-DOF systems, like living beings, the representation of redundant kinematics including the diversity of solutions, is crucial for leveraging its distinctive characteristics. This paper proposes an active learning framework for forward and inverse modeling of compl…

Cited by 0SourceScholar
2023

Forward/Inverse Kinematics Modeling for Tensegrity Manipulator Based on Goal-Conditioned Variational Autoencoder

IROS 2023poster

This paper uses a data-driven approach to model a highly redundantly driven tensegrity manipulator's forward and inverse kinematics. The tensegrity manipulator is based on a class-1 tensegrity with 20 struts and bends by 40 pneumatic actuators whose internal pressures are independently controlled. B…

Cited by 4SourceScholar
2023

Learning Soft Robot Dynamics Using Differentiable Kalman Filters and Spatio-Temporal Embeddings

IROS 2023poster

This paper introduces a novel approach for modeling the dynamics of soft robots, utilizing a differentiable filter architecture. The proposed approach enables end-to-end training to learn system dynamics, noise characteristics, and temporal behavior of the robot. A novel spatio-temporal embedding pr…

Cited by 7SourcecodeScholar
2022

Development of Pneumatically Driven Tensegrity Manipulator without Mechanical Springs

IROS 2022poster

This paper reports a tensegrity manipulator driven by 40 pneumatic cylinders without mechanical springs. In general, tensegrity robots use mechanical springs to achieve a stable/curved tensegrity structure, and this is true even when a component extends/retracts with an actuator. The stiffness of th…

Cited by 12SourceScholar