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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…

Numerical Analysis · Mathematics 2024-10-30 Silvia Preda , Matteo Semplice

We present a novel multi-view implicit surface reconstruction technique, termed StreetSurf, that is readily applicable to street view images in widely-used autonomous driving datasets, such as Waymo-perception sequences, without necessarily…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Jianfei Guo , Nianchen Deng , Xinyang Li , Yeqi Bai , Botian Shi , Chiyu Wang , Chenjing Ding , Dongliang Wang , Yikang Li

Today, three-dimensional reconstruction of objects has many applications in various fields, and therefore, choosing a suitable method for high resolution three-dimensional reconstruction is an important issue and displaying high-level…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 F. S. Mortazavi , S. Dajkhosh , M. Saadatseresht

The reconstruction of a discrete surface from a point cloud is a fundamental geometry processing problem that has been studied for decades, with many methods developed. We propose the use of a deep neural network as a geometric prior for…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Francis Williams , Teseo Schneider , Claudio Silva , Denis Zorin , Joan Bruna , Daniele Panozzo

Fast and robust three-dimensional reconstruction of facial geometric structure from a single image is a challenging task with numerous applications. Here, we introduce a learning-based approach for reconstructing a three-dimensional face…

Computer Vision and Pattern Recognition · Computer Science 2016-09-27 Elad Richardson , Matan Sela , Ron Kimmel

Cortical surface registration is a fundamental tool for neuroimaging analysis that has been shown to improve the alignment of functional regions relative to volumetric approaches. Classically, image registration is performed by optimizing a…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Mohamed A. Suliman , Logan Z. J. Williams , Abdulah Fawaz , Emma C. Robinson

Developing deep learning techniques for geometric data is an active and fruitful research area. This paper tackles the problem of sphere-type surface learning by developing a novel surface-to-image representation. Using this representation…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Niv Haim , Nimrod Segol , Heli Ben-Hamu , Haggai Maron , Yaron Lipman

Unsigned distance functions offer a powerful and flexible implicit surface representation that, unlike their signed counterparts, allow for surfaces that are open, non-orientable, or non-manifold. We consider the problem of reconstructing…

Graphics · Computer Science 2026-05-11 Ningna Wang , Xiana Carrera , Christopher Batty , Oded Stein , Silvia Sellán

Anomaly detection aims to identify abnormal data that deviates from the normal ones, while typically requiring a sufficient amount of normal data to train the model for performing this task. Despite the success of recent anomaly detection…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Shang-Fu Chen , Yu-Min Liu , Chia-Ching Lin , Trista Pei-Chun Chen , Yu-Chiang Frank Wang

We propose Neural-DynamicReconstruction (NDR), a template-free method to recover high-fidelity geometry and motions of a dynamic scene from a monocular RGB-D camera. In NDR, we adopt the neural implicit function for surface representation…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Hongrui Cai , Wanquan Feng , Xuetao Feng , Yan Wang , Juyong Zhang

We present a fully automatic approach for reconstructing compact 3D building models from large-scale airborne point clouds. A major challenge of urban reconstruction from airborne LiDAR point clouds lies in that the vertical walls are…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Jin Huang , Jantien Stoter , Ravi Peters , Liangliang Nan

Digitally unwrapping images of paper sheets is crucial for accurate document scanning and text recognition. This paper presents a method for automatically rectifying curved or folded paper sheets from a few images captured from multiple…

Computer Vision and Pattern Recognition · Computer Science 2016-06-02 Shaodi You , Yasuyuki Matsushita , Sudipta Sinha , Yusuke Bou , Katsushi Ikeuchi

Reconstructing the underlying 3D surface of an object from a single image is a challenging problem that has received extensive attention from the computer vision community. Many learning-based approaches tackle this problem by learning a 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Nicolai Häni , Jun-Jee Chao , Volkan Isler

Most current neural networks for reconstructing surfaces from point clouds ignore sensor poses and only operate on raw point locations. Sensor visibility, however, holds meaningful information regarding space occupancy and surface…

Computer Vision and Pattern Recognition · Computer Science 2022-02-07 Raphael Sulzer , Loic Landrieu , Alexandre Boulch , Renaud Marlet , Bruno Vallet

In this work, we study the perception problem for sampled surfaces (possibly with boundary) using tools from computational topology, specifically, how to identify their underlying topology starting from point-cloud samples in space, such as…

Computational Geometry · Computer Science 2024-10-17 Franco Coltraro , Jaume Amorós , Maria Alberich-Carramiñana , Carme Torras

Object reconstruction is an important task in many fields of application as it allows to generate digital representations of our physical world used as base for analysis, planning, construction, visualization or other aims. A reconstruction…

Ensuring traffic safety is crucial, which necessitates the detection and prevention of road surface defects. As a result, there has been a growing interest in the literature on the subject, leading to the development of various road surface…

Computer Vision and Pattern Recognition · Computer Science 2024-02-08 Jongmin Yu , Jiaqi Jiang , Sebastiano Fichera , Paolo Paoletti , Lisa Layzell , Devansh Mehta , Shan Luo

Surface reconstruction from multi-view images is a challenging task, with solutions often requiring a large number of sampled images with high overlap. We seek to develop a method for few-view reconstruction, for the case of the human foot.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-23 Oliver Boyne , Gwangbin Bae , James Charles , Roberto Cipolla

In this paper, we present a novel reconstruction method for diffuse optical spectroscopic imaging with a commonly used tissue model of optical absorption and scattering. It is based on linearization and group sparsity, which allows…

Numerical Analysis · Mathematics 2019-03-06 Habib Ammari , Bangti Jin , Wenlong Zhang

The aim of surface defect detection is to identify and localise abnormal regions on the surfaces of captured objects, a task that's increasingly demanded across various industries. Current approaches frequently fail to fulfil the extensive…

Computer Vision and Pattern Recognition · Computer Science 2024-08-23 Blaž Rolih , Matic Fučka , Danijel Skočaj