The paper proposes UDiFF, a 3D diffusion model for generating textured 3D shapes with open surfaces. The key contributions are:
UDiFF can generate 3D shapes with open surfaces, unlike previous methods that are limited to closed surfaces. This is achieved by representing shapes as unsigned distance fields (UDFs) instead of signed distance functions (SDFs) or occupancy functions.
The paper introduces an optimal wavelet transformation for UDFs through data-driven optimization. This produces a compact representation space for efficient UDF generation by diffusion models.
UDiFF incorporates conditional cross-attention to enable text-guided 3D generation. It also generates textures for the shapes using a Text2Tex framework.
Extensive evaluations on the DeepFashion3D and ShapeNet datasets demonstrate UDiFF's superior performance in generating high-fidelity 3D shapes with open surfaces compared to state-of-the-art methods.
Egy másik nyelvre
a forrásanyagból
arxiv.org
Mélyebb kérdések