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Xun Xu

2 papers indexed

arxivcs.CV2026-07-12

Compositional Context Fine-Tuning Vision-Language Model for Complex Assembly Action Understanding from Videos

Hao Zheng, Jinyi Huang, Tiantian Zheng, Xun Xu, Tuka Alhanai

Assembly action understanding is a key enabler for effective human-robot collaborative assembly, yet it remains challenging due to subtle motions and fine-grained hand-object interactions. We adapt vision-language models (VLMs) to this challenging domain with Compositional Contex…

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arxivcs.CVcs.RO2026-06-28

Event-VLA: Action-Conditioned Event Fusion for Robust Vision-Language-Action Model

Jiaxin Liu, Xun Xu, Zhenhao Zhang, Hanqing Wang, Ruiqi Chen, Shi Chang, et al.

Vision-Language-Action (VLA) models have become an important paradigm of embodied AI. However, existing VLA models typically assume well-lit and stable indoor settings, while real-world embodied manipulation may involve degraded RGB observations caused by illumination shifts, pos…

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