الباحثون

Xiangyu Li

المنشورات 7

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RoXDrive: Closed-Loop Reinforcement Learning for End-to-End Autonomous Driving via Action-Faithful Rollouts

Hongbin Lin, Chaoda Zheng, Yiming Yang وآخرون · 2026

End-to-end autonomous driving policies are commonly trained via imitation learning on logged demonstrations without observing the consequences of their own actions, leading to causal confusion in closed-loop real-world deployment. To address this issue, reinforcement learning (RL) post-training offers a promising alter …

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VGGT-Diff: Visual Geometry Meets Diffusion for Sparse-View Novel View Synthesis

Kangjie Chen, Xiangyu Li, Dongbin Zhang وآخرون · 2026

We present VGGT-Diff, a geometry-routed multi-view diffusion model for sparse-view novel view synthesis. Existing novel view synthesis (NVS) methods face a fundamental trade-off: reconstruction-based approaches preserve observed geometry but struggle to synthesize unseen regions, while diffusion-based methods provide s …

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VehDyn: A Driving World Model Benchmark for Vehicle Dynamics

Tianyi Wang, Wangsheng Du, Jiazhou Chen وآخرون · 2026

Video world models are emerging as data engines, action planners, and generative simulators for autonomous driving, but existing benchmarks primarily assess visual fidelity and coarse physical plausibility, providing limited evidence on whether generated driving futures obey realistic vehicle kinematics and dynamics. T …

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TrafficImag: A Benchmark for Counterfactual Roadside Traffic Video Generation

Xiangyu Li, Tianyi Wang, Zhihao Dou وآخرون · 2026

Existing roadside traffic datasets support perception, forecasting, and visual question answering, but they do not evaluate counterfactual video generation, in which a selected actor is modified and the generated future should remain consistent with road topology and unrelated traffic. We introduce TrafficImag, the fir …

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Learning Air-Ground Motion Control with Temporal Mode Switching and Cross-Terrain Tracking

Ruitian Pang, Mingrui Li, Xuanting Liu وآخرون · 2026

Passive-wheeled terrestrial-aerial bimodal vehicles (TABVs) combine aerial mobility with energy-efficient ground locomotion. However, reliable air-ground mode switching under limited onboard perception and robust ground trajectory tracking across diverse terrains remain challenging when targeting real-world application …

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TADreamer: Zero-Shot Language-Guided 3D Navigation for Terrestrial-Aerial Bimodal Robots via Video Imagination

Xiangyu Li, Tiancheng Lai, Xijie Huang وآخرون · 2026

Language-guided navigation for terrestrial-aerial bimodal robots requires selecting routes and locomotion modes that match scene context and task intent. Generated videos can represent such motion sequences, but recovering metrically consistent navigation references from them is challenging because of scale ambiguity a …

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