A Three-Level Alignment Framework for Large-Scale 3D Retrieval and Controlled 4D Generation

Philip Xu
12/25/2025
cs.CV

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Abstract

We introduce Uni4D, a unified framework for large scale open vocabulary 3D retrieval and controlled 4D generation based on structured three level alignment across text, 3D models, and image modalities. Built upon the Align3D 130 dataset, Uni4D employs a 3D text multi head attention and search model to optimize text to 3D retrieval through improved semantic alignment. The framework further strengthens cross modal alignment through three components: precise text to 3D retrieval, multi view 3D to image alignment, and image to text alignment for generating temporally consistent 4D assets. Experimental results demonstrate that Uni4D achieves high quality 3D retrieval and controllable 4D generation, advancing dynamic multimodal understanding and practical applications.

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Cite this paper

@article{xu2025threelevel,
  title  = {A Three-Level Alignment Framework for Large-Scale 3D Retrieval and Controlled 4D Generation},
  author = {Philip Xu},
  year   = {2025},
  eprint = {2512.22294},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2512.22294v1}
}

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