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We introduce a statistical extension of the classic Poisson Surface Reconstruction algorithm for recovering shapes from 3D point clouds. Instead of outputting an implicit function, we represent the reconstructed shape as a modified Gaussian…

图形学 · 计算机科学 2022-09-22 Silvia Sellán , Alec Jacobson

3D surface reconstruction from point clouds is a key step in areas such as content creation, archaeology, digital cultural heritage, and engineering. Current approaches either try to optimize a non-data-driven surface representation to fit…

计算机视觉与模式识别 · 计算机科学 2024-02-09 Philipp Erler , Lizeth Fuentes , Pedro Hermosilla , Paul Guerrero , Renato Pajarola , Michael Wimmer

Neural surface reconstruction has been dominated by implicit representations with marching cubes for explicit surface extraction. However, those methods typically require high-quality normals for accurate reconstruction. We propose…

计算机视觉与模式识别 · 计算机科学 2025-03-21 Huan Lei

We propose a level set method to reconstruct unknown surfaces from point clouds, without assuming that the connections between points are known. We consider a variational formulation with a curvature constraint that minimizes the surface…

数值分析 · 数学 2024-10-30 Silvia Preda , Matteo Semplice

We proposed a generalized method, NeuralSSD, for reconstructing a 3D implicit surface from the widely-available point cloud data. NeuralSSD is a solver-based on the neural Galerkin method, aimed at reconstructing higher-quality and accurate…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Zi-Chen Xi , Jiahui Huang , Hao-Xiang Chen , Francis Williams , Qun-Ce Xu , Tai-Jiang Mu , Shi-Min Hu

We present a novel method for reconstructing a 3D implicit surface from a large-scale, sparse, and noisy point cloud. Our approach builds upon the recently introduced Neural Kernel Fields (NKF) representation. It enjoys similar…

计算机视觉与模式识别 · 计算机科学 2023-06-12 Jiahui Huang , Zan Gojcic , Matan Atzmon , Or Litany , Sanja Fidler , Francis Williams

Despite recent advances in reconstructing an organic model with the neural signed distance function (SDF), the high-fidelity reconstruction of a CAD model directly from low-quality unoriented point clouds remains a significant challenge. In…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Qiujie Dong , Rui Xu , Pengfei Wang , Shuangmin Chen , Shiqing Xin , Xiaohong Jia , Wenping Wang , Changhe Tu

Signed Distance Functions (SDFs) are vital implicit representations to represent high fidelity 3D surfaces. Current methods mainly leverage a neural network to learn an SDF from various supervisions including signed distances, 3D point…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Chao Chen , Yu-Shen Liu , Zhizhong Han

As commonly used implicit geometry representations, the signed distance function (SDF) is limited to modeling watertight shapes, while the unsigned distance function (UDF) is capable of representing various surfaces. However, its inherent…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Chuanxiang Yang , Yuanfeng Zhou , Guangshun Wei , Long Ma , Junhui Hou , Yuan Liu , Wenping Wang

We present a learning-based method, namely GeoUDF,to tackle the long-standing and challenging problem of reconstructing a discrete surface from a sparse point cloud.To be specific, we propose a geometry-guided learning method for UDF and…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Siyu Ren , Junhui Hou , Xiaodong Chen , Ying He , Wenping Wang

It is vital to infer signed distance functions (SDFs) from 3D point clouds. The latest methods rely on generalizing the priors learned from large scale supervision. However, the learned priors do not generalize well to various geometric…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Chao Chen , Yu-Shen Liu , Zhizhong Han

We present a novel approach to large-scale point cloud surface reconstruction by developing an efficient framework that converts an irregular point cloud into a signed distance field (SDF). Our backbone builds upon recent transformer-based…

计算机视觉与模式识别 · 计算机科学 2025-02-20 Zhen Li , Weiwei Sun , Shrisudhan Govindarajan , Shaobo Xia , Daniel Rebain , Kwang Moo Yi , Andrea Tagliasacchi

Neural implicit representations have emerged as a powerful paradigm for 3D reconstruction. However, despite their success, existing methods fail to capture fine geometric details and thin structures, especially in scenarios where only…

计算机视觉与模式识别 · 计算机科学 2025-04-23 Aarya Patel , Hamid Laga , Ojaswa Sharma

Point cloud reconstruction from raw point cloud has been an important topic in computer graphics for decades, especially due to its high demand in modeling and rendering applications. An important way to solve this problem is establishing a…

计算机视觉与模式识别 · 计算机科学 2025-03-17 Hui Tian , Kai Xu

Real-world 3D data may contain intricate details defined by salient surface gaps. Automated reconstruction of these open surfaces (e.g., non-watertight meshes) is a challenging problem for environment synthesis in mixed reality…

计算机视觉与模式识别 · 计算机科学 2023-01-20 Mohammad Samiul Arshad , William J. Beksi

Implicit curve and surface reconstruction attracts the attention of many researchers and gains a wide range of applications, due to its ability to describe objects with complicated geometry and topology. However, extra zero-level sets or…

数值分析 · 数学 2019-09-04 Yusuf Fatihu Hamza , Hongwei Lin , Zihao Li

Implicit function based surface reconstruction has been studied for a long time to recover 3D shapes from point clouds sampled from surfaces. Recently, Signed Distance Functions (SDFs) and Occupany Functions are adopted in learning-based…

计算机视觉与模式识别 · 计算机科学 2020-10-23 Meng Jia , Matthew Kyan

Existing neural implicit surface reconstruction methods have achieved impressive performance in multi-view 3D reconstruction by leveraging explicit geometry priors such as depth maps or point clouds as regularization. However, the…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Hanlin Chen , Chen Li , Yunsong Wang , Gim Hee Lee

Poisson surface reconstruction (PSR) remains a popular technique for reconstructing watertight surfaces from 3D point samples thanks to its efficiency, simplicity, and robustness. Yet, the existing PSR method and subsequent variants work…

图形学 · 计算机科学 2022-09-21 Fei Hou , Chiyu Wang , Wencheng Wang , Hong Qin , Chen Qian , Ying He

Reconstructing accurate implicit surface representations from point clouds remains a challenging task, particularly when data is captured using low-quality scanning devices. These point clouds often contain substantial noise, leading to…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Tengkai Wang , Weihao Li , Ruikai Cui , Shi Qiu , Nick Barnes