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3D scanning as a technique to digitize objects in reality and create their 3D models, is used in many fields and areas. Though the quality of 3D scans depends on the technical characteristics of the 3D scanner, the common drawback is the…

计算机视觉与模式识别 · 计算机科学 2023-04-14 Kseniya Cherenkova , Elona Dupont , Anis Kacem , Ilya Arzhannikov , Gleb Gusev , Djamila Aouada

Texture is intuitively defined as a repeated arrangement of a basic pattern or object in an image. There is no mathematical definition of a texture though. The human visual system is able to identify and segment different textures in a…

计算机视觉与模式识别 · 计算机科学 2013-07-01 Aditya Tatu , Sumukh Bansal

With the introduction of spectral-domain optical coherence tomography (SDOCT), much larger image datasets are routinely acquired compared to what was possible using the previous generation of time-domain OCT. Thus, there is a critical need…

计算机视觉与模式识别 · 计算机科学 2015-08-06 Yankui Sun , Tian Zhang , Yue Zhao , Yufan He

We introduce a new general-purpose approach to deep learning on 3D surfaces, based on the insight that a simple diffusion layer is highly effective for spatial communication. The resulting networks are automatically robust to changes in…

计算机视觉与模式识别 · 计算机科学 2022-01-10 Nicholas Sharp , Souhaib Attaiki , Keenan Crane , Maks Ovsjanikov

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

Using heterogeneous depth cameras and 3D scanners in 3D face verification causes variations in the resolution of the 3D point clouds. To solve this issue, previous studies use 3D registration techniques. Out of these proposed techniques,…

计算机视觉与模式识别 · 计算机科学 2018-11-13 Ahmed ElSayed , Elif Kongar , Ausif Mahmood , Tarek Sobh , Terrance Boult

Semantic parsing of large-scale 3D point clouds is an important research topic in computer vision and remote sensing fields. Most existing approaches utilize hand-crafted features for each modality independently and combine them in a…

计算机视觉与模式识别 · 计算机科学 2017-07-24 Fangyu Liu , Shuaipeng Li , Liqiang Zhang , Chenghu Zhou , Rongtian Ye , Yuebin Wang , Jiwen Lu

In recent years, three-dimensional point clouds are used increasingly to document natural environments. Each dataset contains a diverse set of objects, at varying shapes and sizes, distributed throughout the data and intricately intertwined…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Reuma Arav , Dennis Wittich , Franz Rottensteiner

In order to solve the problem of point cloud data splitting improved by DPC algorithm, a research on automatic separation and 3D reconstruction of point cloud data split lines is proposed. First, the relative coordinates of each point in…

计算机视觉与模式识别 · 计算机科学 2024-01-18 Jia Cheng

Surface parameterization is a fundamental geometry processing problem with rich downstream applications. Traditional approaches are designed to operate on well-behaved mesh models with high-quality triangulations that are laboriously…

计算机视觉与模式识别 · 计算机科学 2024-03-18 Qijian Zhang , Junhui Hou , Ying He

3D point cloud segmentation has a wide range of applications in areas such as autonomous driving, augmented reality, virtual reality and digital twins. The point cloud data collected in real scenes often contain small objects and categories…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Chade Li , Pengju Zhang , Jiaming Zhang , Yihong Wu

Mesh reconstruction from a 3D point cloud is an important topic in the fields of computer graphic, computer vision, and multimedia analysis. In this paper, we propose a voxel structure-based mesh reconstruction framework. It provides the…

图形学 · 计算机科学 2021-04-26 Chenlei Lv , Weisi Lin , Baoquan Zhao

We propose a novel and efficient representation for single-view depth estimation using Convolutional Neural Networks (CNNs). Point-cloud is generally used for CNN-based 3D scene reconstruction; however it has some drawbacks: (1) it is…

计算机视觉与模式识别 · 计算机科学 2020-03-12 Masaya Kaneko , Ken Sakurada , Kiyoharu Aizawa

Point clouds obtained from 3D scans are typically sparse, irregular, and noisy, and required to be consolidated. In this paper, we present the first deep learning based edge-aware technique to facilitate the consolidation of point clouds.…

计算机视觉与模式识别 · 计算机科学 2018-07-18 Lequan Yu , Xianzhi Li , Chi-Wing Fu , Daniel Cohen-Or , Pheng-Ann Heng

Triangle meshes remain the most popular data representation for surface geometry. This ubiquitous representation is essentially a hybrid one that decouples continuous vertex locations from the discrete topological triangulation.…

计算机视觉与模式识别 · 计算机科学 2021-09-23 Marie-Julie Rakotosaona , Noam Aigerman , Niloy Mitra , Maks Ovsjanikov , Paul Guerrero

This paper presents a very simple but efficient algorithm for 3D line segment detection from large scale unorganized point cloud. Unlike traditional methods which usually extract 3D edge points first and then link them to fit for 3D line…

计算机视觉与模式识别 · 计算机科学 2019-01-10 Xiaohu Lu , Yahui Liu , Kai Li

3D point cloud - a new signal representation of volumetric objects - is a discrete collection of triples marking exterior object surface locations in 3D space. Conventional imperfect acquisition processes of 3D point cloud - e.g.,…

计算机视觉与模式识别 · 计算机科学 2019-05-01 Jin Zeng , Gene Cheung , Michael Ng , Jiahao Pang , Cheng Yang

Learning implicit representations has been a widely used solution for surface reconstruction from 3D point clouds. The latest methods infer a distance or occupancy field by overfitting a neural network on a single point cloud. However,…

计算机视觉与模式识别 · 计算机科学 2023-08-28 Chao Chen , Yu-Shen Liu , Zhizhong Han

We present a method for reconstructing triangle meshes from point clouds. Existing learning-based methods for mesh reconstruction mostly generate triangles individually, making it hard to create manifold meshes. We leverage the properties…

计算机视觉与模式识别 · 计算机科学 2021-05-07 Marie-Julie Rakotosaona , Paul Guerrero , Noam Aigerman , Niloy Mitra , Maks Ovsjanikov

With the tide of artificial intelligence, we try to apply deep learning to understand 3D data. Point cloud is an important 3D data structure, which can accurately and directly reflect the real world. In this paper, we propose a simple and…

计算机视觉与模式识别 · 计算机科学 2019-10-01 Kang Zhiheng , Li Ning