Papers › 4D Gaussian Splatting for Real-Time Dynamic Scene Rendering

4D Gaussian Splatting for Real-Time Dynamic Scene Rendering

12 Oct 2023CVPR 2024 1arXiv:2310.08528archive 2025-07-28

Guanjun Wu, Taoran Yi, Jiemin Fang, Lingxi Xie, Xiaopeng Zhang, Wei Wei, Wenyu Liu, Qi Tian, Xinggang Wang

Representing and rendering dynamic scenes has been an important but challenging task. Especially, to accurately model complex motions, high efficiency is usually hard to guarantee. To achieve real-time dynamic scene rendering while also enjoying high training and storage efficiency, we propose 4D Gaussian Splatting (4D-GS) as a holistic representation for dynamic scenes rather than applying 3D-GS for each individual frame. In 4D-GS, a novel explicit representation containing both 3D Gaussians and 4D neural voxels is proposed. A decomposed neural voxel encoding algorithm inspired by HexPlane is proposed to efficiently build Gaussian features from 4D neural voxels and then a lightweight MLP is applied to predict Gaussian deformations at novel timestamps. Our 4D-GS method achieves real-time rendering under high resolutions, 82 FPS at an 800×800 resolution on an RTX 3090 GPU while maintaining comparable or better quality than previous state-of-the-art methods. More demos and code are available at https://guanjunwu.github.io/4dgs/.

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construct_list_of_attributes hustvl/4DGaussians/export_perframe_3DGS.py official repository ran Apache-2.0 (permissive) · 5d9c08013dc39925 · report
init_3DGaussians_ply hustvl/4DGaussians/export_perframe_3DGS.py official repository ran Apache-2.0 (permissive) · bf8835048d68fc01 · report
l1_loss hustvl/4DGaussians/utils/loss_utils.py official repository ran fingerprinted Apache-2.0 (permissive) · ac0e42d6fbcfbbe6 · report
l2_loss hustvl/4DGaussians/utils/loss_utils.py official repository ran fingerprinted Apache-2.0 (permissive) · 8c3b0f873ba11813 · report
readImages hustvl/4DGaussians/metrics.py official repository ran Apache-2.0 (permissive) · cdd00787894554b5 · report
rotate_point_cloud hustvl/4DGaussians/merge_many_4dgs.py official repository ran Apache-2.0 (permissive) · 473be863d3a190d8 · report
array_to_blob hustvl/4DGaussians/database.py official repository unverified Apache-2.0 (permissive) · 141f61e2147729f4 · report
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multithread_write hustvl/4DGaussians/render.py official repository unverified Apache-2.0 (permissive) · 6559d028972f58ba · report

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Dynamic Reconstruction

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Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Dynamic Reconstruction iPhone (Monocular Dynamic View Synthesis) 4DGaussians LPIPS 0.56 #6 of 7 Archive leaderboard report

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