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Weiheng Liu

3 accepted papers

2026

DiffuDepGrasp: Diffusion-Based Depth Noise Modeling Empowers Sim-To-Real Robotic Grasping

ICRA 2026poster

Accurate spatial-geometric perception remains fundamental to robotic grasping, yet physical artifacts in real depth maps like voids and noise establish a significant sim-to-real gap that critically impedes policy transfer. Training-time strategies like procedural noise injection or learned mappings …

Cited by 0Scholar
2026

HDFlow: Hierarchical Diffusion-Flow Planning for Long-horizon Tasks

ICML 2026spotlight

Recent advances in generative models have shown promise in generating behavior plans for long-horizon, sparse reward tasks. While these approaches have achieved promising results, they often lack a principled framework for hierarchical decomposition and struggle with the computational demands of rea…

Cited by 0SourcecodeScholar
2025

FetchBot: Learning Generalizable Object Fetching in Cluttered Scenes via Zero-Shot Sim2Real

CoRL 2025oral

Generalizable object fetching in cluttered scenes remains a fundamental and application-critical challenge in embodied AI. Closely packed objects cause inevitable occlusions, making safe action generation particularly difficult. Under such partial observability, effective policies must not only gene…

Cited by 0SourceScholar