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Jian-Xin Sun

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Preprint Sep 2026

Dream4ACT: A Shared Visual Action Interface for Multi-Embodiment Video-Action Modeling

Video generation models (VGMs) offer strong spatiotemporal priors for embodied observation--action modeling. However, joint-space action vectors lack explicit image-space structure and vary in dimensionality and semantics across embodiments, making it challenging to directly leverage the rich spatiotemporal priors of V...

Xiang-Yu Zhu, Jin Xu, Yue (Sophie) Guo et al. · 0 citations
Open access Jul 2026

GroupVideo: Multi-Identity Customized Text-to-Video Generation

A novel framework that leverages multiple individual photographs to generate identitycustomized video, and a comprehensive high-quality dataset of 20,000 videos, thereby establishing a crucial resource to advance future research in multi-ID video generation.

Xinyang Song, Li-Bin Wang, Jianxin Sun et al. · 0 citations

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