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Sethu Vijayakumar

2 papers indexed

arxivcs.RO2026-07-17

BayesContact: Uncertain Pose Estimation via Visuo-Tactile Proposals and Simulation-based Inference

Aditya Kamireddypalli, Matias Mattamala, Joao Moura, Russell Buchanan, Sethu Vijayakumar, Subramanian Ramamoorthy

Contact-rich manipulation requires pose estimates that are often more accurate than what depth-only sensing provides. Existing methods, relying on vision and contact, employ costly offline training procedures that need to be retrained for new environments and geometries. We propo…

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arxivcs.RO2026-07-07

Optimal Transport Q-Learning for Flow Policy Steering and Acceleration

Andreas Sochopoulos, Esmeralda S. Whitammer, Nikolaos Tsagkas, João Moura, Michael Gienger, Sethu Vijayakumar

Diffusion and flow policies have recently demonstrated remarkable performance in robotic applications by accurately capturing multimodal robot trajectory distributions, especially in the context of vision language action (VLA) models. However, high quality policy performance also…

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