VCR-GauS: View Consistent Depth-Normal Regularizer for Gaussian Surface Reconstruction

Fuente: arXiv
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Main Authors: Chen, Hanlin, Wei, Fangyin, Li, Chen, Huang, Tianxin, Wang, Yunsong, Lee, Gim Hee
Format: Preprint
Published: 2024
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author Chen, Hanlin
Wei, Fangyin
Li, Chen
Huang, Tianxin
Wang, Yunsong
Lee, Gim Hee
author_facet Chen, Hanlin
Wei, Fangyin
Li, Chen
Huang, Tianxin
Wang, Yunsong
Lee, Gim Hee
contents Although 3D Gaussian Splatting has been widely studied because of its realistic and efficient novel-view synthesis, it is still challenging to extract a high-quality surface from the point-based representation. Previous works improve the surface by incorporating geometric priors from the off-the-shelf normal estimator. However, there are two main limitations: 1) Supervising normals rendered from 3D Gaussians effectively updates the rotation parameter but is less effective for other geometric parameters; 2) The inconsistency of predicted normal maps across multiple views may lead to severe reconstruction artifacts. In this paper, we propose a Depth-Normal regularizer that directly couples normal with other geometric parameters, leading to full updates of the geometric parameters from normal regularization. We further propose a confidence term to mitigate inconsistencies of normal predictions across multiple views. Moreover, we also introduce a densification and splitting strategy to regularize the size and distribution of 3D Gaussians for more accurate surface modeling. Compared with Gaussian-based baselines, experiments show that our approach obtains better reconstruction quality and maintains competitive appearance quality at faster training speed and 100+ FPS rendering.
format Preprint
id arxiv_https___arxiv_org_abs_2406_05774
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle VCR-GauS: View Consistent Depth-Normal Regularizer for Gaussian Surface Reconstruction
Chen, Hanlin
Wei, Fangyin
Li, Chen
Huang, Tianxin
Wang, Yunsong
Lee, Gim Hee
Computer Vision and Pattern Recognition
Although 3D Gaussian Splatting has been widely studied because of its realistic and efficient novel-view synthesis, it is still challenging to extract a high-quality surface from the point-based representation. Previous works improve the surface by incorporating geometric priors from the off-the-shelf normal estimator. However, there are two main limitations: 1) Supervising normals rendered from 3D Gaussians effectively updates the rotation parameter but is less effective for other geometric parameters; 2) The inconsistency of predicted normal maps across multiple views may lead to severe reconstruction artifacts. In this paper, we propose a Depth-Normal regularizer that directly couples normal with other geometric parameters, leading to full updates of the geometric parameters from normal regularization. We further propose a confidence term to mitigate inconsistencies of normal predictions across multiple views. Moreover, we also introduce a densification and splitting strategy to regularize the size and distribution of 3D Gaussians for more accurate surface modeling. Compared with Gaussian-based baselines, experiments show that our approach obtains better reconstruction quality and maintains competitive appearance quality at faster training speed and 100+ FPS rendering.
title VCR-GauS: View Consistent Depth-Normal Regularizer for Gaussian Surface Reconstruction
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2406.05774