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The task of shape abstraction with semantic part consistency is challenging due to the complex geometries of natural objects. Recent methods learn to represent an object shape using a set of simple primitives to fit the target.…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Di Liu , Long Zhao , Qilong Zhangli , Yunhe Gao , Ting Liu , Dimitris N. Metaxas

Clustering is central to many data-driven application domains and has been studied extensively in terms of distance functions and grouping algorithms. Relatively little work has focused on learning representations for clustering. In this…

机器学习 · 计算机科学 2016-05-26 Junyuan Xie , Ross Girshick , Ali Farhadi

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

We introduce a differential visual similarity metric to train deep neural networks for 3D reconstruction, aimed at improving reconstruction quality. The metric compares two 3D shapes by measuring distances between multi-view images…

图形学 · 计算机科学 2020-04-02 Jiongchao Jin , Akshay Gadi Patil , Zhang Xiong , Hao Zhang

This work proposes a new formulation to the long-standing problem of convex decomposition through learning feature fields, enabling the first feed-forward model for open-world convex decomposition. Our method produces high-quality…

计算机视觉与模式识别 · 计算机科学 2026-03-11 Yuezhi Yang , Qixing Huang , Mikaela Angelina Uy , Nicholas Sharp

The ever-increasing 3D application makes the point cloud compression unprecedentedly important and needed. In this paper, we propose a patch-based compression process using deep learning, focusing on the lossy point cloud geometry…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Kang You , Pan Gao

Depth-from-focus (DFF) is a technique that infers depth using the focus change of a camera. In this work, we propose a convolutional neural network (CNN) to find the best-focused pixels in a focal stack and infer depth from the focus…

计算机视觉与模式识别 · 计算机科学 2022-03-21 Fengting Yang , Xiaolei Huang , Zihan Zhou

Existing learning-based point feature descriptors are usually task-agnostic, which pursue describing the individual 3D point clouds as accurate as possible. However, the matching task aims at describing the corresponding points consistently…

计算机视觉与模式识别 · 计算机科学 2022-10-27 Zhiyuan Zhang , Yuchao Dai , Bin Fan , Jiadai Sun , Mingyi He

In this paper, we present Deep Extreme Feature Extraction (DEFE), a new ensemble MVA method for searching $\tau^{+}\tau^{-}$ channel of Higgs bosons in high energy physics. DEFE can be viewed as a deep ensemble learning scheme that trains a…

机器学习 · 计算机科学 2016-03-25 Chao Ma , Tianchenghou , Bin Lan , Jinhui Xu , Zhenhua Zhang

We introduce an end-to-end learnable technique to robustly identify feature edges in 3D point cloud data. We represent these edges as a collection of parametric curves (i.e.,lines, circles, and B-splines). Accordingly, our deep neural…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Xiaogang Wang , Yuelang Xu , Kai Xu , Andrea Tagliasacchi , Bin Zhou , Ali Mahdavi-Amiri , Hao Zhang

The availability of affordable 3D full body reconstruction systems has given rise to free-viewpoint video (FVV) of human shapes. Most existing solutions produce temporally uncorrelated point clouds or meshes with unknown point/vertex…

计算机视觉与模式识别 · 计算机科学 2018-10-15 Zhong Li , Minye Wu , Wangyiteng Zhou , Jingyi Yu

This paper introduces and demonstrates a computational pipeline for the statistical analysis of shape graph datasets, namely geometric networks embedded in 2D or 3D spaces. Unlike traditional abstract graphs, our purpose is not only to…

机器学习 · 计算机科学 2026-02-19 Murad Hossen , Demetrio Labate , Nicolas Charon

We present an end-to-end 3D reconstruction method for a scene by directly regressing a truncated signed distance function (TSDF) from a set of posed RGB images. Traditional approaches to 3D reconstruction rely on an intermediate…

计算机视觉与模式识别 · 计算机科学 2020-10-15 Zak Murez , Tarrence van As , James Bartolozzi , Ayan Sinha , Vijay Badrinarayanan , Andrew Rabinovich

This paper introduces an innovative end-to-end model-based deep learning approach for efficient electromagnetic analysis of high-dimensional frequency selective surfaces (FSS). Unlike traditional data-driven methods that require large…

机器学习 · 计算机科学 2024-10-23 Cheima Hammami , Lucas Polo-López , Luc Le Magoarou

Nowadays, many visual scene understanding problems are addressed by dense prediction networks. But pixel-wise dense annotations are very expensive (e.g., for scene parsing) or impossible (e.g., for intrinsic image decomposition), motivating…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Xiaoxue Chen , Yuhang Zheng , Yupeng Zheng , Qiang Zhou , Hao Zhao , Guyue Zhou , Ya-Qin Zhang

Making accurate forecasts for a complex system is a challenge in various practical applications. The major difficulty in solving such a problem concerns nonlinear spatiotemporal dynamics with time-varying characteristics. Takens' delay…

信号处理 · 电气工程与系统科学 2024-04-09 Hao Peng , Wei Wang , Pei Chen , Rui Liu

Spectral shape descriptors have been used extensively in a broad spectrum of geometry processing applications ranging from shape retrieval and segmentation to classification. In this pa- per, we propose a spectral graph wavelet approach for…

图形学 · 计算机科学 2017-05-18 Majid Masoumi , A. Ben Hamza

How to extract significant point cloud features and estimate the pose between them remains a challenging question, due to the inherent lack of structure and ambiguous order permutation of point clouds. Despite significant improvements in…

计算机视觉与模式识别 · 计算机科学 2021-12-14 Zhu Xu , Zhengyao Bai , Huijie Liu , Qianjie Lu , Shenglan Fan

Learning dense correspondences across deformable 3D shapes remains a long-standing challenge due to structural variability, non-isometric deformation, and inconsistent topology. Existing methods typically trade off generalization, geometric…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Soyeon Yoon , Chang Wook Seo , Hyunjung Shim

We propose a novel Deformed Implicit Field (DIF) representation for modeling 3D shapes of a category and generating dense correspondences among shapes. With DIF, a 3D shape is represented by a template implicit field shared across the…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Yu Deng , Jiaolong Yang , Xin Tong