Papers › Depth-Regularized Optimization for 3D Gaussian Splatting in Few-Shot Images

Depth-Regularized Optimization for 3D Gaussian Splatting in Few-Shot Images

22 Nov 2023arXiv:2311.13398archive 2025-07-28

JaeYoung Chung, Jeongtaek Oh, Kyoung Mu Lee

In this paper, we present a method to optimize Gaussian splatting with a limited number of images while avoiding overfitting. Representing a 3D scene by combining numerous Gaussian splats has yielded outstanding visual quality. However, it tends to overfit the training views when only a small number of images are available. To address this issue, we introduce a dense depth map as a geometry guide to mitigate overfitting. We obtained the depth map using a pre-trained monocular depth estimation model and aligning the scale and offset using sparse COLMAP feature points. The adjusted depth aids in the color-based optimization of 3D Gaussian splatting, mitigating floating artifacts, and ensuring adherence to geometric constraints. We verify the proposed method on the NeRF-LLFF dataset with varying numbers of few images. Our approach demonstrates robust geometry compared to the original method that relies solely on images. Project page: robot0321.github.io/DepthRegGS

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gaussian robot0321/DepthRegularizedGS/utils/loss_utils.py official repository ran · honoured contract fingerprinted no licence file found · pointer only · c56b7ef16f309a45 · report
l1_loss robot0321/DepthRegularizedGS/utils/loss_utils.py official repository ran fingerprinted no licence file found · pointer only · ac0e42d6fbcfbbe6 · report
l2_loss robot0321/DepthRegularizedGS/utils/loss_utils.py official repository ran fingerprinted no licence file found · pointer only · 8c3b0f873ba11813 · report
normalize_activation robot0321/DepthRegularizedGS/lpipsPyTorch/modules/utils.py official repository ran fingerprinted no licence file found · pointer only · 1dab900b2adbe38e · report
readImages robot0321/DepthRegularizedGS/metrics.py official repository ran no licence file found · pointer only · cdd00787894554b5 · report
read_next_bytes robot0321/DepthRegularizedGS/scene/colmap_loader.py official repository ran · honoured contract no licence file found · pointer only · 56858e04e6fdb2ff · report
get_network robot0321/DepthRegularizedGS/lpipsPyTorch/modules/networks.py official repository unverified no licence file found · pointer only · 07bd0da29c4dc7bb · report
get_state_dict robot0321/DepthRegularizedGS/lpipsPyTorch/modules/utils.py official repository unverified no licence file found · pointer only · b06f27c08cf5d0ca · report
qvec2rotmat robot0321/DepthRegularizedGS/scene/colmap_loader.py official repository unverified no licence file found · pointer only · 6ce64cf0fbcd6bb1 · report
rotmat2qvec robot0321/DepthRegularizedGS/scene/colmap_loader.py official repository unverified no licence file found · pointer only · 659bc4e7e63ed8f9 · report

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Depth EstimationMonocular Depth EstimationNeRF

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