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Kai Yuan

9 accepted papers

2024

MIDGArD: Modular Interpretable Diffusion over Graphs for Articulated Designs

NeurIPS 2024poster

Providing functionality through articulation and interaction with objects is a key objective in 3D generation. We introduce MIDGArD (Modular Interpretable Diffusion over Graphs for Articulated Designs), a novel diffusion-based framework for articulated 3D asset generation. MIDGArD improves over foun…

Cited by 0SourcePDFScholar
2020

Force-Guided High-Precision Grasping Control of Fragile and Deformable Objects Using sEMG-Based Force Prediction

RA-L 2020

Regulating contact forces with high precision is crucial for grasping and manipulating fragile or deformable objects. We aim to utilize the dexterity of human hands to regulate the contact forces for robotic hands and exploit human sensory-motor synergies in a wearable and non-invasive way. We extra

Cited by 43SourceScholar
2020

Learning Natural Locomotion Behaviors for Humanoid Robots Using Human Bias

RA-L 2020

This letter presents a new learning framework that leverages the knowledge from imitation learning, deep reinforcement learning, and control theories to achieve human-style locomotion that is natural, dynamic, and robust for humanoids. We proposed novel approaches to introduce human bias, i.e. motio

Cited by 50SourceScholar
2020

Learning Pregrasp Manipulation of Objects from Ungraspable Poses

ICRA 2020poster

In robotic grasping, objects are often occluded in ungraspable configurations such that no feasible grasp pose can be found, e.g. large flat boxes on the table that can only be grasped once lifted. Inspired by human bimanual manipulation, e.g. one hand to lift up things and the other to grasp, we ad…

Cited by 35SourceScholar
2020

Unified Push Recovery Fundamentals: Inspiration from Human Study

ICRA 2020poster

Currently for balance recovery, humans outperform humanoid robots which use hand-designed controllers in terms of the diverse actions. This study aims to close this gap by finding core control principles that are shared across ankle, hip, toe and stepping strategies by formulating experiments to tes…

Cited by 12SourceScholar
2019

Bayesian Optimization for Whole-Body Control of High-Degree-of-Freedom Robots Through Reduction of Dimensionality

RA-L 2019

This letter aims to achieve automatic tuning of optimal parameters for whole-body control algorithms to achieve the best performance of high-DoF robots. Typically, the control parameters at a scale up to hundreds are often hand-tuned yielding sub-optimal performance. Bayesian optimization (BO) can b

Cited by 42SourceScholar
2018

An Improved Formulation for Model Predictive Control of Legged Robots for Gait Planning and Feedback Control

IROS 2018poster

Predictive control methods for walking commonly use low dimensional models, such as a Linear Inverted Pendulum Model (LIPM), for simplifying the complex dynamics of legged robots. This paper identifies the physical limitations of the modeling methods that do not account for external disturbances, an…

Cited by 11SourceScholar
2018

Comparison Study of Nonlinear Optimization of Step Durations and Foot Placement for Dynamic Walking

ICRA 2018poster

This paper studies bipedal locomotion as a nonlinear optimization problem based on continuous and discrete dynamics, by simultaneously optimizing the remaining step duration, the next step duration and the foot location to achieve robustness. The linear inverted pendulum as the motion model captures…

Cited by 17SourceScholar