InstantAvatar: Efficient 3D Head Reconstruction via Surface Rendering

arXiv:2308.04868v3 Announce Type: replace
Abstract: Recent advances in full-head reconstruction have been obtained by optimizing a neural field through differentiable surface or volume rendering to represent a single scene. While these techniques achieve an unprecedented accuracy, they take several minutes, or even hours, due to the expensive optimization process required. In this work, we introduce InstantAvatar, a method that recovers full-head avatars from few images (down to just one) in a few seconds on commodity hardware. In order to speed …

abstract accuracy advances arxiv cs.cv differentiable head optimization process rendering surface through type via