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Kechun Xu

11 accepted papers

2026

Efficient Alignment of Unconditioned Action Prior for Language-Conditioned Pick and Place in Clutter (I)

ICRA 2026poster

We study the task of language-conditioned pick and place in clutter, where a robot should grasp a target object in open clutter and move it to a specified place. Some approaches learn end-to-end policies with features from vision foundation models, requiring large datasets. Others combine foundation…

Cited by 0codeScholar
2026

Toward Embodiment Equivariant Vision-Language-Action Policy

ICRA 2026poster

Vision-language-action policies learn manipulation skills across tasks, environments and embodiments through large-scale pre-training. However, their ability to generalize to novel robot configurations remains limited. Most approaches emphasize model size, dataset scale and diversity while paying le…

2025

Grounding 3D Object Affordance with Language Instructions, Visual Observations and Interactions

CVPR 2025poster

Grounding 3D object affordance is a task that locates objects in 3D space where they can be manipulated, which links perception and action for embodied intelligence. For example, for an intelligent robot, it is necessary to accurately ground the affordance of an object and grasp it according to huma…

Cited by 0SourcePDFScholar
2024

Adapting for Calibration Disturbances: A Neural Uncalibrated Visual Servoing Policy

ICRA 2024poster

Visual servoing (VS) is a widely used technique in industries where there are hundreds of robots, but it requires accurate camera calibration including camera intrinsic and extrinsic parameters. However, it is labour-intensive to calibrate robots one-by-one in practical use. In this paper, we propos…

Cited by 1SourceScholar
2023

A Hyper-Network Based End-to-End Visual Servoing With Arbitrary Desired Poses

RA-L 2023

Recently, several works achieve end-to-end visual servoing (VS) for robotic manipulation by replacing traditional controller with differentiable neural networks, but lose the ability to servo arbitrary desired poses. This letter proposes a differentiable architecture for arbitrary pose servoing: a h

Cited by 8SourceScholar
2023

A Joint Modeling of Vision-Language-Action for Target-oriented Grasping in Clutter

ICRA 2023poster

We focus on the task of language-conditioned grasping in clutter, in which a robot is supposed to grasp the target object based on a language instruction. Previous works separately conduct visual grounding to localize the target object, and generate a grasp for that object. However, these works requ…

Cited by 49SourcecodeScholar
2023

Failure-aware Policy Learning for Self-assessable Robotics Tasks

ICRA 2023poster

Self-assessment rules play an essential role in safe and effective real-world robotic applications, which verify the feasibility of the selected action before actual execution. But how to utilize the self-assessment results to re-choose actions remains a challenge. Previous methods eliminate the sel…

Cited by 2SourceScholar
2022

E-NeRV: Expedite Neural Video Representation with Disentangled Spatial-Temporal Context

ECCV 2022poster

"Recently, the image-wise implicit neural representation of videos, NeRV, has gained popularity for its promising results and swift speed compared to regular pixel-wise implicit representations. However, the redundant parameters within the network structure can cause a large model size when scaling…

2022

Efficient Object Manipulation to an Arbitrary Goal Pose: Learning-Based Anytime Prioritized Planning

ICRA 2022poster

We focus on the task of object manipulation to an arbitrary goal pose, in which a robot is supposed to pick an assigned object to place at the goal position with a specific orientation. However, limited by the execution space of the manipulator with gripper, one-step picking, moving and releasing mi…

Cited by 12SourceScholar
2021

Efficient Learning of Goal-Oriented Push-Grasping Synergy in Clutter

RA-L 2021

We focus on the task of goal-oriented grasping, in which a robot is supposed to grasp a pre-assigned goal object in clutter and needs some pre-grasp actions such as pushes to enable stable grasps. However, in this task, the robot gets positive rewards from environment only when successfully grasping

Cited by 91SourcecodeScholar
2021

Neural Motion Prediction for In-flight Uneven Object Catching

IROS 2021poster

In-flight objects capture is extremely challenging. The robot is required to complete trajectory prediction, interception position calculation and motion planning within tens of milliseconds. As in-flight uneven objects are affected by various kinds of forces, which leads to the time-varying acceler…

Cited by 13SourceScholar