11 papers
Robustness of Robotic Manipulation: Foundations and Frontiers
Yifei Dong, Zhanyi Sun, Lujie Yang +5
Humans and animals exhibit remarkable robustness in physical manipulation, yet robots remain far behind. Progress toward human-level manipulation robustness is hindered by the abse…
Physics-Informed Eikonal Caging for Whole-Arm Manipulation Planning
Yan Zhang, Yiming Li, Yifei Dong +2
Planning contact-rich whole-arm manipulation is challenging because interactions that involve extended robot geometry give rise to complex contact dynamics that are difficult to mo…
MoDex: A Diffusion Policy for Sequential Multi-Object Dexterous Grasping
Haofei Lu, Hongjia Liu, Yifei Dong +3
This work addresses sequentially grasping multiple objects with a single dexterous hand without releasing those already held. Most dexterous grasping methods commit all of the hand…
Parabolic Position Encoding: Vision-Centric, Principled, Extrapolatable, General
Christoffer Koo Ãhrstrøm, Rafael I. Cabral Muchacho, Yifei Dong +4
We propose Parabolic Position Encoding (PaPE), a parabola-based position encoding for vision modalities in attention-based architectures. Given a set of vision tokens-such as from…
Robustness-Aware Tool Selection and Manipulation Planning with Learned Energy-Informed Guidance
Yifei Dong, Yan Zhang, Sylvain Calinon +1
Humans subconsciously choose robust ways of selecting and using tools, for example, choosing a ladle over a flat spatula to serve meatballs. However, robustness under external dist…
Latent Diffeomorphic Co-Design of End-Effectors for Deformable and Fragile Object Manipulation
Kei Ikemura, Yifei Dong, Florian T. Pokorny
Manipulating deformable and fragile objects remains a fundamental challenge in robotics due to complex contact dynamics and strict requirements on object integrity. Existing approa…