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Robert Lee

16 accepted papers

2025

Can We Detect Failures Without Failure Data? Uncertainty-Aware Runtime Failure Detection for Imitation Learning Policies

RSS 2025poster

Recent years have witnessed impressive robotic manipulation systems driven by advances in imitation learning and generative modeling, such as diffusion- and flow-based approaches. As robot policy performance increases, so does the complexity and time horizon of achievable tasks, inducing unexpected…

Cited by 1PDFScholar
2025

IMLE Policy: Fast and Sample Efficient Visuomotor Policy Learning via Implicit Maximum Likelihood Estimation

RSS 2025poster

Recent advances in imitation learning, particularly using generative modelling techniques like diffusion, have enabled policies to capture complex multi-modal action distributions. However, these methods often require large datasets and multiple inference steps for action generation, posing challeng…

Cited by 0PDFScholar
2025

Learning from 10 Demos: Generalisable and Sample-Efficient Policy Learning with Oriented Affordance Frames

CoRL 2025poster

Imitation learning has unlocked the potential for robots to exhibit highly dexterous behaviours. However, it still struggles with long-horizon, multi-object tasks due to poor sample efficiency and limited generalisation. Existing methods require a substantial number of demonstrations to cover possib…

Cited by 0SourcecodeScholar
2025

ZeroGrasp: Zero-Shot Shape Reconstruction Enabled Robotic Grasping

CVPR 2025poster

Robotic grasping is a cornerstone capability of embodied systems. Many methods directly output grasps from partial information without modeling the geometry of the scene, leading to suboptimal motion and even collisions. To address these issues, we introduce ZeroGrasp, a novel framework that simulta…

Cited by 0SourcePDFScholar
2024

DiffusionNOCS: Managing Symmetry and Uncertainty in Sim2Real Multi-Modal Category-level Pose Estimation

IROS 2024poster

This paper addresses the challenging problem of category-level pose estimation. Current state-of-the-art methods for this task face challenges when dealing with symmetric objects and when attempting to generalize to new environments solely through synthetic data training. In this work, we address th…

Cited by 11SourcecodeScholar
2024

GS-Pose: Category-Level Object Pose Estimation via Geometric and Semantic Correspondence

ECCV 2024poster

"Category-level pose estimation is a challenging task with many potential applications in computer vision and robotics. Recently, deep-learning-based approaches have made great progress, but are typically hindered by the need for large datasets of either pose-labelled real images or carefully tuned…

Cited by 7SourcePDFScholar
2024

Gravity-aware Grasp Generation with Implicit Grasp Mode Selection for Underactuated Hands

IROS 2024poster

Learning-based grasp detectors typically assume a precision grasp, where each finger only has one contact point, and estimate the grasp probability. In this work, we propose a data generation and learning pipeline that can leverage power grasping, which has more contact points with an enveloping con…

Cited by 2SourceScholar
2022

Sample-Efficient Learning of Deformable Linear Object Manipulation in the Real World Through Self-Supervision

RA-L 2022

Deformable object manipulation has potential for a wide range of real-world applications, but is still largely unsolved due to the complex dynamics and difficulty of state estimation. Learning-based approaches have recently accelerated progress, but generally depend heavily on large simulated datase

Cited by 21SourceScholar
2021

Improving The Robustness Of Right Whale Detection In Noisy Conditions Using Denoising Autoencoders And Augmented Training

ICASSP 2021accepted

The aim of this paper is to examine denoising autoencoders (DAEs) for improving the detection of right whales recorded in harsh marine environments. Passive acoustic recordings are taken from autonomous surface vehicles (ASVs) and are subject to noise from sources such as shipping and offshore const…

Cited by 0SourceScholar
2021

TRANS-AM: Transfer Learning by Aggregating Dynamics Models for Soft Robotic Assembly

ICRA 2021poster

Practical industrial assembly scenarios often require robotic agents to adapt their skills to unseen tasks quickly. While transfer reinforcement learning (RL) could enable such quick adaptation, much prior work has to collect many samples from source environments to learn target tasks in a model-fre…

Cited by 18SourceScholar
2020

A Compact, Cable-driven, Activatable Soft Wrist with Six Degrees of Freedom for Assembly Tasks

IROS 2020poster

Physical softness has been proposed to absorb impacts when establishing contact with a robot or its workpiece, to relax control requirements and improve performance in assembly and insertion tasks. Previous work has focused on special end effector solutions for isolated tasks, such as the peg-in-hol…

Cited by 35SourceScholar
2020

Contact-based in-hand pose estimation using Bayesian state estimation and particle filtering

ICRA 2020poster

In industrial assembly tasks, the position of an object grasped by the robot has to be known with high precision in order to insert or place it. In real applications, this problem is commonly solved by jigs that are specially produced for each part. However, they significantly limit flexibility and…

Cited by 30SourceScholar
2020

Learning Arbitrary-Goal Fabric Folding with One Hour of Real Robot Experience

CoRL 2020

Manipulating deformable objects, such as fabric, is a long standing problem in robotics, with state estimation and control posing a significant challenge for traditional methods. In this paper, we show that it is possible to learn fabric folding skills in only an hour of self-supervised real robot e

Cited by 0SourcePDFScholar
2020

Learning Robotic Assembly Tasks with Lower Dimensional Systems by Leveraging Physical Softness and Environmental Constraints

ICRA 2020poster

In this study, we present a novel control framework for assembly tasks with a soft robot. Typically, existing hard robots require high frequency controllers and precise force/torque sensors for assembly tasks. The resulting robot system is complex, entailing large amounts of engineering and maintena…

Cited by 34SourceScholar
2020

Learning Soft Robotic Assembly Strategies from Successful and Failed Demonstrations

IROS 2020poster

Physically soft robots are promising for robotic assembly tasks as they allow stable contacts with the environment. In this study, we propose a novel learning system for soft robotic assembly strategies. We formulate this problem as a reinforcement learning task and design the reward function from h…

Cited by 24SourceScholar