JD Retail Technology

Jun 15, 2026 · Artificial Intelligence

Sparse‑Up: Sparse‑Voxel 3D Geometry Generation Boosts Product Reconstruction

The paper presents Sparse‑Up, a sparse‑voxel based 3D geometry generation framework that introduces learnable surface‑anchored upsampling and view‑partition rendering to eliminate redundant points, dramatically reduce memory usage, and achieve high‑fidelity product reconstruction, with experimental results surpassing TRELLIS, Hunyuan3D and other SOTA methods.