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Mesh extraction from dynamic 3D Gaussian Splatting

Construct a method to extract high-quality explicit triangle meshes from dynamic 3D Gaussian Splatting representations, producing temporally coherent geometry while preserving the fidelity of appearance–geometry coupling across time.

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Background

3D Gaussian Splatting is favored for real-time dynamic scene rendering due to its explicit primitives and efficient rasterization. However, despite strong visual fidelity and temporal modeling capabilities, extracting explicit meshes from dynamic Gaussian representations remains unresolved.

The challenge is particularly important because volumetric approaches couple appearance and geometry, yet many downstream applications require explicit mesh assets for editing, simulation, and interaction modeling.

References

Additionally, while volumetric rendering methods inherently couple appearance and geometry, extracting high-quality explicit meshes from dynamic Gaussian representations remains an important open problem.

Advances in 4D Representation: Geometry, Motion, and Interaction (2510.19255 - Zhao et al., 22 Oct 2025) in Section 2.1.4 Gaussian Splatting based Representations — Open Challenges