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Kehan Xu

3 accepted papers

2025

Variable Impedance Control for Floating-Base Supernumerary Robotic Leg in Walking Assistance

RA-L 2025

In human-robot systems, ensuring safety during force control in the presence of both internal and external disturbances is crucial. As a typical loosely coupled floating-base robot system, the supernumerary robotic leg (SRL) system is particularly susceptible to strong internal disturbances. To addr

Cited by 1SourceScholar
2020

Beyond Short-Term Snippet: Video Relation Detection With Spatio-Temporal Global Context

CVPR 2020poster

Video visual relation detection (VidVRD) aims to describe all interacting objects in a video. Different from relationships in static images, videos contain an addition temporal channel. A majority of existing works divide a video into short segments, predict relationships in each segment, and merge…

Cited by 92PDFScholar
2020

Learnable Cost Volume Using the Cayley Representation

ECCV 2020poster

Cost volume is an essential component of recent deep models for optical flow estimation and is usually constructed by calculating the inner product between two feature vectors. However, the standard inner product in the commonly-used cost volume may limit the representation capacity of flow models b…