activity
20232026
most citedSparse Diffusion Policy: A Sparse, Reusable, and Flexible Policy for Robot Learning

1 citations · 2 across the 19 of their papers we have counts for

collaborators

20 papers

cs.RO2026

One from Infinity: Actualizing Futures from Pretrained World Models into Robot Actions

Bang Du, Yichen Xie, Shuqi Zhao +3

A pretrained video world model admits many plausible futures for a scene, but a robot must realize the exact task-conditioned one. To turn world models into executable robot polici…

cs.RO2026

CARF: Contrastive Attraction-Repulsion of Failure-Guided Flow Matching

Shuqi Zhao, Bang Du, Cheng-En Wu +3

Robot demonstration collection often produces imperfect or failed trajectories in addition to successful demonstrations. Existing methods typically exploit failed trajectories by i…

cs.CV2026

LaMo: Self-Supervised Latent Motion Priors for Physical Realism in Video Generation

Bo Jiang, Depu Meng, Yihan Hu +3

Modern video generators produce visually compelling clips but still struggle with physical and motion consistency, limiting their use as reliable world simulators. Existing remedie…

cs.CV2026

Teaching Video Generators to Remember: Eliciting Dynamic Memory for Out-of-Sight State Evolution

Tianshuo Xu, Yichen Xie, Depu Meng +5

Video world models should maintain evolving states when evidence is unobserved, yet current generators often freeze hidden states upon interruption. This is not simply a capacity p…

cs.RO2026

Multi-Camera View Scaling for Data-Efficient Robot Imitation Learning

Yichen Xie, Yixiao Wang, Shuqi Zhao +4

The generalization ability of imitation learning policies for robotic manipulation is fundamentally constrained by the diversity of expert demonstrations, while collecting demonstr…

cs.GR2026

RT-GS: Gaussian Splatting with Reflection and Transmittance Primitives

Kunnong Zeng, Chensheng Peng, Yichen Xie +2

Gaussian Splatting is a powerful tool for reconstructing diffuse scenes, but it struggles to simultaneously model specular reflections and the appearance of objects behind semi-tra…

cs.CV2026

EndoVGGT: GNN-Enhanced Depth Estimation for Surgical 3D Reconstruction

Falong Fan, Yi Xie, Arnis Lektauers +2

Accurate 3D reconstruction of deformable soft tissues is essential for surgical robotic perception. However, low-texture surfaces, specular highlights, and instrument occlusions of…

cs.CV2026

UniQueR: Unified Query-based Feedforward 3D Reconstruction

Chensheng Peng, Quentin Herau, Jiezhi Yang +6

We present UniQueR, a unified query-based feedforward framework for efficient and accurate 3D reconstruction from unposed images. Existing feedforward models such as DUSt3R, VGGT,…

cs.CV2026

RAYNOVA: Scale-Temporal Autoregressive World Modeling in Ray Space

Yichen Xie, Chensheng Peng, Mazen Abdelfattah +6

World foundation models aim to simulate the evolution of the real world with physically plausible behavior. Unlike prior methods that handle spatial and temporal correlations separ…

cs.RO2025

DEXOP: A Device for Robotic Transfer of Dexterous Human Manipulation

Hao-Shu Fang, Branden Romero, Yichen Xie +9

We introduce perioperation, a paradigm for robotic data collection that sensorizes and records human manipulation while maximizing the transferability of the data to real robots. W…

cs.RO2025

DexCtrl: Towards Sim-to-Real Dexterity with Adaptive Controller Learning

Shuqi Zhao, Ke Yang, Yuxin Chen +5

Dexterous manipulation has seen remarkable progress in recent years, with policies capable of executing many complex and contact-rich tasks in simulation. However, transferring the…

cs.CV2024

X-Drive: Cross-modality consistent multi-sensor data synthesis for driving scenarios

Yichen Xie, Chenfeng Xu, Chensheng Peng +6

Recent advancements have exploited diffusion models for the synthesis of either LiDAR point clouds or camera image data in driving scenarios. Despite their success in modeling sing…

cs.CV2024

DeSiRe-GS: 4D Street Gaussians for Static-Dynamic Decomposition and Surface Reconstruction for Urban Driving Scenes

Chensheng Peng, Chengwei Zhang, Yixiao Wang +6

We present DeSiRe-GS, a self-supervised gaussian splatting representation, enabling effective static-dynamic decomposition and high-fidelity surface reconstruction in complex drivi…

cs.RO2024

DexH2R: Task-oriented Dexterous Manipulation from Human to Robots

Shuqi Zhao, Xinghao Zhu, Yuxin Chen +5

Dexterous manipulation is a critical aspect of human capability, enabling interaction with a wide variety of objects. Recent advancements in learning from human demonstrations and…

cs.CV2024

TrajSSL: Trajectory-Enhanced Semi-Supervised 3D Object Detection

Philip Jacobson, Yichen Xie, Mingyu Ding +4

Semi-supervised 3D object detection is a common strategy employed to circumvent the challenge of manually labeling large-scale autonomous driving perception datasets. Pseudo-labeli…

cs.CV2024

Optimizing Diffusion Models for Joint Trajectory Prediction and Controllable Generation

Yixiao Wang, Chen Tang, Lingfeng Sun +8

Diffusion models are promising for joint trajectory prediction and controllable generation in autonomous driving, but they face challenges of inefficient inference steps and high c…

cs.RO2024★ 1 cited

Sparse Diffusion Policy: A Sparse, Reusable, and Flexible Policy for Robot Learning

Yixiao Wang, Yifei Zhang, Mingxiao Huo +8

The increasing complexity of tasks in robotics demands efficient strategies for multitask and continual learning. Traditional models typically rely on a universal policy for all ta…

cs.CV2024

RoadBEV: Road Surface Reconstruction in Bird's Eye View

Tong Zhao, Lei Yang, Yichen Xie +3

Road surface conditions, especially geometry profiles, enormously affect driving performance of autonomous vehicles. Vision-based online road reconstruction promisingly captures ro…

cs.CV2024

Cohere3D: Exploiting Temporal Coherence for Unsupervised Representation Learning of Vision-based Autonomous Driving

Yichen Xie, Hongge Chen, Gregory P. Meyer +6

Due to the lack of depth cues in images, multi-frame inputs are important for the success of vision-based perception, prediction, and planning in autonomous driving. Observations f…

cs.CV2023★ 1 cited

Towards Free Data Selection with General-Purpose Models

Yichen Xie, Mingyu Ding, Masayoshi Tomizuka +1

A desirable data selection algorithm can efficiently choose the most informative samples to maximize the utility of limited annotation budgets. However, current approaches, represe…