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In this article, a new method for segmentation and restoration of images on two-dimensional surfaces is given. Active contour models for image segmentation are extended to images on surfaces. The evolving curves on the surfaces are…

计算机视觉与模式识别 · 计算机科学 2015-05-04 Heike Benninghoff , Harald Garcke

Traditional algorithms for compressive sensing recovery are computationally expensive and are ineffective at low measurement rates. In this work, we propose a data driven non-iterative algorithm to overcome the shortcomings of earlier…

计算机视觉与模式识别 · 计算机科学 2017-08-18 Suhas Lohit , Kuldeep Kulkarni , Ronan Kerviche , Pavan Turaga , Amit Ashok

Recovering high quality surfaces from noisy point clouds, known as point cloud denoising, is a fundamental yet challenging problem in geometry processing. Most of the existing methods either directly denoise the noisy input or filter raw…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Zheng Liu , Yaowu Zhao , Sijing Zhan , Yuanyuan Liu , Renjie Chen , Ying He

This paper builds upon the current methods to increase their capability and automation for 3D surface construction from noisy and potentially sparse point clouds. It presents an analysis of an artificial neural network surface regression…

图形学 · 计算机科学 2018-12-04 Adam R White , Li Bai

We propose a fast and accurate surface reconstruction algorithm for unorganized point clouds using an implicit representation. Recent learning methods are either single-object representations with small neural models that allow for high…

计算机视觉与模式识别 · 计算机科学 2025-06-11 Siddhant Ranade , Gonçalo Dias Pais , Ross Tyler Whitaker , Jacinto C. Nascimento , Pedro Miraldo , Srikumar Ramalingam

We present a comprehensive survey and benchmark of both traditional and learning-based methods for surface reconstruction from point clouds. This task is particularly challenging for real-world acquisitions due to factors such as noise,…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Raphael Sulzer , Renaud Marlet , Bruno Vallet , Loic Landrieu

Surface reconstruction from a set of scattered points, or a point cloud, has many applications ranging from computer graphics to remote sensing. We present a new method for this task that produces an implicit surface (zero-level set)…

数值分析 · 数学 2022-07-22 Kathryn P. Drake , Edward J. Fuselier , Grady B. Wright

Digital neuron reconstruction from 3D microscopy images is an essential technique for investigating brain connectomics and neuron morphology. Existing reconstruction frameworks use convolution-based segmentation networks to partition the…

计算机视觉与模式识别 · 计算机科学 2022-10-19 Runkai Zhao , Heng Wang , Chaoyi Zhang , Weidong Cai

Iterative phase retrieval algorithms typically employ projections onto constraint subspaces to recover the unknown phases in the Fourier transform of an image, or, in the case of x-ray crystallography, the electron density of a molecule.…

数值分析 · 数学 2025-10-20 Veit Elser

Reconstructing a surface from a point cloud is an underdetermined problem. We use a neural network to study and quantify this reconstruction uncertainty under a Poisson smoothness prior. Our algorithm addresses the main limitations of…

图形学 · 计算机科学 2023-09-22 Silvia Sellán , Alec Jacobson

Neural implicit representations have become a popular choice for modeling surfaces due to their adaptability in resolution and support for complex topology. While previous works have achieved impressive reconstruction quality by training on…

计算机视觉与模式识别 · 计算机科学 2024-08-12 Lu Sang , Abhishek Saroha , Maolin Gao , Daniel Cremers

Point cloud surface reconstruction has improved in accuracy with advances in deep learning, enabling applications such as infrastructure inspection. Recent approaches that reconstruct from small local regions rather than entire point clouds…

计算机视觉与模式识别 · 计算机科学 2025-11-12 Eito Ogawa , Taiga Hayami , Hiroshi Watanabe

We propose a surface fitting method for unstructured 3D point clouds. This method, called DeepFit, incorporates a neural network to learn point-wise weights for weighted least squares polynomial surface fitting. The learned weights act as a…

计算机视觉与模式识别 · 计算机科学 2020-03-25 Yizhak Ben-Shabat , Stephen Gould

We present RangeUDF, a new implicit representation based framework to recover the geometry and semantics of continuous 3D scene surfaces from point clouds. Unlike occupancy fields or signed distance fields which can only model closed 3D…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Bing Wang , Zhengdi Yu , Bo Yang , Jie Qin , Toby Breckon , Ling Shao , Niki Trigoni , Andrew Markham

Reconstructing models from unorganized point clouds presents a significant challenge, especially when the models consist of multiple components represented by their surface point clouds. Such models often involve point clouds with noise…

计算几何 · 计算机科学 2025-08-26 Yu Chen , Hongwei Lin

We present Neural Splines, a technique for 3D surface reconstruction that is based on random feature kernels arising from infinitely-wide shallow ReLU networks. Our method achieves state-of-the-art results, outperforming recent neural…

计算机视觉与模式识别 · 计算机科学 2021-05-28 Francis Williams , Matthew Trager , Joan Bruna , Denis Zorin

Learning and analyzing 3D point clouds with deep networks is challenging due to the sparseness and irregularity of the data. In this paper, we present a data-driven point cloud upsampling technique. The key idea is to learn multi-level…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Lequan Yu , Xianzhi Li , Chi-Wing Fu , Daniel Cohen-Or , Pheng-Ann Heng

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

Compressing a set of unordered points is far more challenging than compressing images/videos of regular sample grids, because of the difficulties in characterizing neighboring relations in an irregular layout of points. Many researchers…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Hao Xu , Xi Zhang , Xiaolin Wu

Recent years have witnessed significant progress in the field of neural surface reconstruction. While the extensive focus was put on volumetric and implicit approaches, a number of works have shown that explicit graphics primitives such as…

计算机视觉与模式识别 · 计算机科学 2023-04-07 Sergey Prokudin , Qianli Ma , Maxime Raafat , Julien Valentin , Siyu Tang