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Representing human-made objects as a collection of base primitives has a long history in computer vision and reverse engineering. In the case of high-resolution point cloud scans, the challenge is to be able to detect both large primitives…

计算机视觉与模式识别 · 计算机科学 2021-09-07 Eric-Tuan Lê , Minhyuk Sung , Duygu Ceylan , Radomir Mech , Tamy Boubekeur , Niloy J. Mitra

Despite the progress on 3D point cloud deep learning, most prior works focus on learning features that are invariant to translation and point permutation, and very limited efforts have been devoted for rotation invariant property. Several…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Zhiyuan Zhang , Licheng Yang , Zhiyu Xiang

We introduce and investigate matrix approximation by decomposition into a sum of radial basis function (RBF) components. An RBF component is a generalization of the outer product between a pair of vectors, where an RBF function replaces the…

机器学习 · 计算机科学 2021-06-25 Elizaveta Rebrova , Yu-Hang Tang

3D point cloud is an important 3D representation for capturing real world 3D objects. However, real-scanned 3D point clouds are often incomplete, and it is important to recover complete point clouds for downstream applications. Most…

计算机视觉与模式识别 · 计算机科学 2022-03-22 Zhaoyang Lyu , Zhifeng Kong , Xudong Xu , Liang Pan , Dahua Lin

Recent advances in generative modeling have demonstrated strong promise for high-quality point cloud upsampling. In this work, we present PUFM++, an enhanced flow-matching framework for reconstructing dense and accurate point clouds from…

计算机视觉与模式识别 · 计算机科学 2025-12-25 Zhi-Song Liu , Chenhang He , Roland Maier , Andreas Rupp

Stable diffusion networks have emerged as a groundbreaking development for their ability to produce realistic and detailed visual content. This characteristic renders them ideal decoders, capable of producing high-quality and aesthetically…

计算机视觉与模式识别 · 计算机科学 2024-08-21 Kai Liu , Kang You , Pan Gao

Most deep learning-based point cloud processing methods are supervised and require large scale of labeled data. However, manual labeling of point cloud data is laborious and time-consuming. Self-supervised representation learning can…

计算机视觉与模式识别 · 计算机科学 2023-12-07 Xin Cao , Huan Xia , Xinxin Han , Yifan Wang , Kang Li , Linzhi Su

Three-dimensional urban reconstruction of buildings from single-view images has attracted significant attention over the past two decades. However, recent methods primarily focus on rooftops from aerial images, often overlooking essential…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Soulaimene Turki , Daniel Panangian , Houda Chaabouni-Chouayakh , Ksenia Bittner

In this paper we propose a new efficient interpolation tool, extremely suitable for large scattered data sets. The partition of unity method is used and performed by blending Radial Basis Functions (RBFs) as local approximants and using…

数值分析 · 数学 2016-04-18 R. Cavoretto , A. De Rossi , E. Perracchione

Point cloud-based large scale place recognition is an important but challenging task for many applications such as Simultaneous Localization and Mapping (SLAM). Taking the task as a point cloud retrieval problem, previous methods have made…

计算机视觉与模式识别 · 计算机科学 2022-08-30 Zhaoxin Fan , Zhenbo Song , Wenping Zhang , Hongyan Liu , Jun He , Xiaoyong Du

This paper presents an approach for compressing point cloud geometry by leveraging a lightweight super-resolution network. The proposed method involves decomposing a point cloud into a base point cloud and the interpolation patterns for…

图像与视频处理 · 电气工程与系统科学 2023-11-03 Wei Zhang , Dingquan Li , Ge Li , Wen Gao

To help bridge the gap between internet vision-style problems and the goal of vision for embodied perception we instantiate a large-scale navigation task -- Embodied Question Answering [1] in photo-realistic environments (Matterport 3D). We…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Erik Wijmans , Samyak Datta , Oleksandr Maksymets , Abhishek Das , Georgia Gkioxari , Stefan Lee , Irfan Essa , Devi Parikh , Dhruv Batra

The paper presents a simple and effective learning-based method for computing a discriminative 3D point cloud descriptor for place recognition purposes. Recent state-of-the-art methods have relatively complex architectures such as…

计算机视觉与模式识别 · 计算机科学 2022-04-11 Jacek Komorowski

The processing, storage and transmission of large-scale point clouds is an ongoing challenge in the computer vision community which hinders progress in the application of 3D models to real-world settings, such as autonomous driving, virtual…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Stuti Pathak , Thomas M. McDonald , Seppe Sels , Rudi Penne

Novel-view synthesis with sparse input views is important for real-world applications like AR/VR and autonomous driving. Recent methods have integrated depth information into NeRFs for sparse input synthesis, leveraging depth prior for…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Shuai Guo , Qiuwen Wang , Yijie Gao , Rong Xie , Li Song

In this paper, we focus on subjective and objective Point Cloud Quality Assessment (PCQA) in an immersive environment and study the effect of geometry and texture attributes in compression distortion. Using a Head-Mounted Display (HMD) with…

图像与视频处理 · 电气工程与系统科学 2024-10-30 Xinju Wu , Yun Zhang , Chunling Fan , Junhui Hou , Sam Kwong

We present a method for post-processing point clouds' geometric information by applying a previously proposed fractional super-resolution technique to clouds compressed and decoded with MPEG's G-PCC codec. In some sense, this is a…

图像与视频处理 · 电气工程与系统科学 2022-08-11 Renan U. B. Ferreira , Tomas M. Borges , Diogo C. Garcia , Ricardo L. de Queiroz

Point cloud registration has seen significant advancements with the application of deep learning techniques. However, existing approaches often overlook the potential of integrating radiometric information from RGB images. This limitation…

计算机视觉与模式识别 · 计算机科学 2025-06-09 Zhaoyi Wang , Shengyu Huang , Jemil Avers Butt , Yuanzhou Cai , Matej Varga , Andreas Wieser

In lossy image compression, the objective is to achieve minimal signal distortion while compressing images to a specified bit rate. The increasing demand for visual analysis applications, particularly in classification tasks, has emphasized…

多媒体 · 计算机科学 2024-05-07 Yuefeng Zhang

Point clouds have been recognized as a crucial data structure for 3D content and are essential in a number of applications such as virtual and mixed reality, autonomous driving, cultural heritage, etc. In this paper, we propose a set of…

计算机视觉与模式识别 · 计算机科学 2020-06-25 Maurice Quach , Giuseppe Valenzise , Frederic Dufaux