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arXiv Computer Vision By Yiqun Zhao, Binbin Huang, Haobin Duan, Zibo Zhao, Shenghua Gao

Seeing Both the Forest and the Trees: Reusing Holistic 3D Priors for Part-Decomposed Generation

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STRUCTPARTS is a new framework that reuses holistic 3D priors to generate part‑decomposed 3D assets. It introduces a dual‑frame coordinate interleaving mechanism, interpreting each shape latent under both part‑local and object‑global reference frames and processing them with a global‑local inter‑leaved transformer. Using a segmented mesh scaffold as structural input, the method achieves detailed intra‑part geometry and coherent inter‑part structure with lightweight finetuning, outperforming prior part‑decomposed models on PartObjaverse‑Tiny while enabling part‑mesh refinement and editing.

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