Topo4D: Topology-Preserving Gaussian Splatting for High-Fidelity 4D Head Capture

TL;DR

Topo4D introduces a topology-preserving Gaussian splatting framework for automatic, high-fidelity 4D head capture from multi-view videos, significantly improving mesh and texture quality while reducing manual effort.

Contribution

It presents a novel Gaussian-based method that maintains topology stability and optimizes geometry and textures simultaneously for dynamic 4D head reconstruction.

Findings

Achieves superior mesh and texture quality compared to SOTA methods.

Generates 8K high-fidelity textures with pore-level details.

Maintains temporal topology stability during optimization.

Abstract

4D head capture aims to generate dynamic topological meshes and corresponding texture maps from videos, which is widely utilized in movies and games for its ability to simulate facial muscle movements and recover dynamic textures in pore-squeezing. The industry often adopts the method involving multi-view stereo and non-rigid alignment. However, this approach is prone to errors and heavily reliant on time-consuming manual processing by artists. To simplify this process, we propose Topo4D, a novel framework for automatic geometry and texture generation, which optimizes densely aligned 4D heads and 8K texture maps directly from calibrated multi-view time-series images. Specifically, we first represent the time-series faces as a set of dynamic 3D Gaussians with fixed topology in which the Gaussian centers are bound to the mesh vertices. Afterward, we perform alternative geometry and texture optimization frame-by-frame for high-quality geometry and texture learning while maintaining temporal topology stability. Finally, we can extract dynamic facial meshes in regular wiring arrangement and high-fidelity textures with pore-level details from the learned Gaussians. Extensive experiments show that our method achieves superior results than the current SOTA face reconstruction methods both in the quality of meshes and textures. Project page: https://xuanchenli.github.io/Topo4D/.