← Search

Michelle A. Lee

9 accepted papers

2022

See, Hear, and Feel: Smart Sensory Fusion for Robotic Manipulation

CoRL 2022poster

Humans use all of their senses to accomplish different tasks in everyday activities. In contrast, existing work on robotic manipulation mostly relies on one, or occasionally two modalities, such as vision and touch. In this work, we systematically study how visual, auditory, and tactile perception c…

Cited by 65SourceScholar
2021

Detect, Reject, Correct: Crossmodal Compensation of Corrupted Sensors

ICRA 2021poster

Using sensor data from multiple modalities presents an opportunity to encode redundant and complementary features that can be useful when one modality is corrupted or noisy. Humans do this everyday, relying on touch and proprioceptive feedback in visually-challenging environments. However, robots mi…

Cited by 33SourceScholar
2021

Differentiable Factor Graph Optimization for Learning Smoothers

IROS 2021poster

A recent line of work has shown that end-to-end optimization of Bayesian filters can be used to learn state estimators for systems whose underlying models are difficult to hand-design or tune, while retaining the core advantages of probabilistic state estimation. As an alternative approach for state…

Cited by 28SourceScholar
2021

Interpreting Contact Interactions to Overcome Failure in Robot Assembly Tasks

ICRA 2021poster

A key challenge towards autonomous multi-part object assembly is robust sensorimotor control under uncertainty. In contrast to previous works that rely on a priori knowledge on whether two parts match, we aim to learn this through physical interaction. We propose a hierarchical approach that enables…

Cited by 26SourcecodeScholar
2021

MultiBench: Multiscale Benchmarks for Multimodal Representation Learning

NeurIPS 2021poster

Learning multimodal representations involves integrating information from multiple heterogeneous sources of data. It is a challenging yet crucial area with numerous real-world applications in multimedia, affective computing, robotics, finance, human-computer interaction, and healthcare. Unfortunatel…

Cited by 186SourceScholar
2020

Guided Uncertainty-Aware Policy Optimization: Combining Learning and Model-Based Strategies for Sample-Efficient Policy Learning

ICRA 2020poster

Traditional robotic approaches rely on an accurate model of the environment, a detailed description of how to perform the task, and a robust perception system to keep track of the current state. On the other hand, reinforcement learning approaches can operate directly from raw sensory inputs with on…

Cited by 75SourceScholar
2020

Multimodal Sensor Fusion with Differentiable Filters

IROS 2020poster

Leveraging multimodal information with recursive Bayesian filters improves performance and robustness of state estimation, as recursive filters can combine different modalities according to their uncertainties. Prior work has studied how to optimally fuse different sensor modalities with analytical…

Cited by 67SourceScholar
2019

Making Sense of Vision and Touch: Self-Supervised Learning of Multimodal Representations for Contact-Rich Tasks

ICRA 2019poster

Contact-rich manipulation tasks in unstructured environments often require both haptic and visual feedback. However, it is non-trivial to manually design a robot controller that combines modalities with very different characteristics. While deep reinforcement learning has shown success in learning c…

Cited by 446SourcecodeScholar
2019

Variable Impedance Control in End-Effector Space: An Action Space for Reinforcement Learning in Contact-Rich Tasks

IROS 2019poster

Reinforcement Learning (RL) of contact-rich manipulation tasks has yielded impressive results in recent years. While many studies in RL focus on varying the observation space or reward model, few efforts focused on the choice of action space (e.g. joint or end-effector space, position, velocity, etc…

Cited by 231SourcecodeScholar