15 papers
Uniform bounds on prime levels of abelian division fields of elliptic curves over number fields without rationally defined CM
Hansol Kim
Enrique González-Jiménez and Álvaro Lozano-Robledo proved that there exists a uniform bound on the levels for which the -division field $\mathbb{Q}\left(E\left[n\right]\righ…
One Scene, Two Depths: Probing Geometric Ambiguity in Monocular Foundation Models
Xiaohao Xu, Feng Xue, Xiang Li +5
A faithful 3D world representation should account for layered geometry, where a single camera ray may contain multiple visible and geometrically valid surfaces. Monocular depth est…
Rewind-IL: Online Failure Detection and State Respawning for Imitation Learning
Gehan Zheng, Sanjay Seenivasan, Matthew Johnson-Roberson +1
Imitation learning has enabled robots to acquire complex visuomotor manipulation skills from demonstrations, but deployment failures remain a major obstacle, especially for long-ho…
Efficient Construction of Implicit Surface Models From a Single Image for Motion Generation
Wei-Teng Chu, Tianyi Zhang, Matthew Johnson-Roberson +1
Implicit representations have been widely applied in robotics for obstacle avoidance and path planning. In this paper, we explore the problem of constructing an implicit distance r…
Robust Bayesian Scene Reconstruction with Retrieval-Augmented Priors for Precise Grasping and Planning
Herbert Wright, Weiming Zhi, Martin Matak +2
Constructing 3D representations of object geometry is critical for many robotics tasks, particularly manipulation problems. These representations must be built from potentially noi…
Cross-Modal Instructions for Robot Motion Generation
William Barron, Xiaoxiang Dong, Matthew Johnson-Roberson +1
Teaching robots novel behaviors typically requires motion demonstrations via teleoperation or kinaesthetic teaching, that is, physically guiding the robot. While recent work has ex…