RetimeGS: Continuous-Time Reconstruction of 4D Gaussian Splatting

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Key Features

Reconstructs and renders dynamic scenes at arbitrary timestamps.
Introduces a continuous-time 4D Gaussian Splatting representation.
Reduces temporal aliasing and ghosting artifacts.
Uses optical flow-guided initialization and supervision.
Applies triple-rendering supervision for smoother interpolation.
Handles fast motion, non-rigid deformation, and occlusions better.
Supports slow-motion playback and temporal editing scenarios.
Focuses on ghost-free, temporally coherent rendering.

The method combines optical flow-guided initialization and supervision with triple-rendering supervision and other targeted strategies. Those components are meant to keep interpolation stable while improving quality on scenes with fast motion, non-rigid deformation, and heavy occlusion. The result is a more practical representation for continuous-time rendering than discrete-only alternatives.


The project page frames RetimeGS as relevant to slow-motion playback, temporal editing, and post-production workflows. Its emphasis on ghost-free interpolation and temporal coherence makes it a strong research reference for teams exploring dynamic scene reconstruction and advanced Gaussian splatting techniques.

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