Alan Hou

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Honeycomb-Surfels: Compact Hexagonal Primitives for Efficient 3D Scene Rendering

Honeycomb-Surfels：面向高效 3D 渲染与表面重建的紧致六边形基元

3D and 2D Gaussian Splatting have revolutionized novel view synthesis, but their ellipsoidal primitives suffer from severe geometric overlap, high boundary blur, and massive memory bloat. Alan Yuille's lab at Johns Hopkins introduces Hexels—compact planar hexagonal surface elements paired with first-order spatial color fields. By exploiting natural geometric regularities with fewer, larger boundary-efficient primitives, Hexels boost PSNR by 4.53 to 7.38 dB over memory-matched 2DGS, slash training VRAM, accelerate FPS by 2.31x, and cut 3D reconstruction errors by 28.9%.