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In recent years, 3D generation has made great strides in both academia and industry. However, generating 3D scenes from a single RGB image remains a significant challenge, as current approaches often struggle to ensure both object…

图形学 · 计算机科学 2026-02-18 Xiang Tang , Ruotong Li , Xiaopeng Fan

The worldwide commercialization of fifth generation (5G) wireless networks and the exciting possibilities offered by connected and autonomous vehicles (CAVs) are pushing toward the deployment of heterogeneous sensors for tracking dynamic…

图像与视频处理 · 电气工程与系统科学 2022-02-03 Francesco Nardo , Davide Peressoni , Paolo Testolina , Marco Giordani , Andrea Zanella

The recent development of dynamic point clouds has introduced the possibility of mimicking natural reality, and greatly assisting quality of life. However, to broadcast successfully, the dynamic point clouds require higher compression due…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Faranak Tohidi , Manoranjan Paul , Anwaar Ulhaq

With the recently massive development in convolution neural networks, numerous lightweight CNN-based image super-resolution methods have been proposed for practical deployments on edge devices. However, most existing methods focus on one…

计算机视觉与模式识别 · 计算机科学 2022-06-23 Yan Wang

3D Gaussian Splatting (3DGS) has demonstrated its advantages in achieving fast and high-quality rendering. As point clouds serve as a widely-used and easily accessible form of 3D representation, bridging the gap between point clouds and…

计算机视觉与模式识别 · 计算机科学 2025-09-18 Weiqi Zhang , Junsheng Zhou , Haotian Geng , Wenyuan Zhang , Yu-Shen Liu

Semantic segmentation of raw 3D point clouds is an essential component in 3D scene analysis, but it poses several challenges, primarily due to the non-Euclidean nature of 3D point clouds. Although, several deep learning based approaches…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Saqib Ali Khan , Yilei Shi , Muhammad Shahzad , Xiao Xiang Zhu

In this paper, we propose PointRCNN for 3D object detection from raw point cloud. The whole framework is composed of two stages: stage-1 for the bottom-up 3D proposal generation and stage-2 for refining proposals in the canonical…

计算机视觉与模式识别 · 计算机科学 2019-05-17 Shaoshuai Shi , Xiaogang Wang , Hongsheng Li

A generative model for high-fidelity point clouds is of great importance in synthesizing 3d environments for applications such as autonomous driving and robotics. Despite the recent success of deep generative models for 2d images, it is…

计算机视觉与模式识别 · 计算机科学 2023-07-25 Cheng Wen , Baosheng Yu , Rao Fu , Dacheng Tao

In this paper, we propose PASS3D to achieve point-wise semantic segmentation for 3D point cloud. Our framework combines the efficiency of traditional geometric methods with robustness of deep learning methods, consisting of two stages: At…

计算机视觉与模式识别 · 计算机科学 2020-08-27 Xin Kong , Guangyao Zhai , Baoquan Zhong , Yong Liu

Point-cloud data collected in real-world applications are often incomplete. Data is typically missing due to objects being observed from partial viewpoints, which only capture a specific perspective or angle. Additionally, data can be…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Yoni Kasten , Ohad Rahamim , Gal Chechik

While 3D point clouds are widely used in vision applications, their irregular and sparse nature make them challenging to handle. In response, numerous encoding approaches have been proposed to capture the rich semantic information of point…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Donghyun Kim , Chanyoung Kim , Hyunah Ko , Seong Jae Hwang

Point cloud registration aims at estimating the geometric transformation between two point cloud scans, in which point-wise correspondence estimation is the key to its success. In addition to previous methods that seek correspondences by…

计算机视觉与模式识别 · 计算机科学 2022-09-02 Ziming Wang , Xiaoliang Huo , Zhenghao Chen , Jing Zhang , Lu Sheng , Dong Xu

Accurate three-dimensional perception is a fundamental task in several computer vision applications. Recently, commercial RGB-depth (RGB-D) cameras have been widely adopted as single-view depth-sensing devices owing to their efficient…

计算机视觉与模式识别 · 计算机科学 2022-07-27 Jiwan Kim , Minchang Kim , Yeong-Gil Shin , Minyoung Chung

3D detection is a critical task that enables machines to identify and locate objects in three-dimensional space. It has a broad range of applications in several fields, including autonomous driving, robotics and augmented reality. Monocular…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Aakash Kumar , Chen Chen , Ajmal Mian , Neils Lobo , Mubarak Shah

Point cloud compression plays a crucial role in reducing the huge cost of data storage and transmission. However, distortions can be introduced into the decompressed point clouds due to quantization. In this paper, we propose a novel…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Xiaoqing Fan , Ge Li , Dingquan Li , Yurui Ren , Wei Gao , Thomas H. Li

Point cloud is one of the widely used techniques for representing and storing 3D geometric data. In the past several methods have been proposed for processing point clouds. Methods such as PointNet and FoldingNet have shown promising…

计算机视觉与模式识别 · 计算机科学 2022-09-29 Prajwal Singh , Kaustubh Sadekar , Shanmuganathan Raman

Point clouds obtained from photogrammetry are noisy and incomplete models of reality. We propose an evolutionary optimization methodology that is able to approximate the underlying object geometry on such point clouds. This approach assumes…

计算机视觉与模式识别 · 计算机科学 2019-01-23 Jean F. Liénard

Point cloud registration is a fundamental task for estimating rigid transformations between point clouds. Previous studies have used geometric information for extracting features, matching and estimating transformation. Recently, owing to…

计算机视觉与模式识别 · 计算机科学 2024-08-22 Congjia Chen , Xiaoyu Jia , Yanhong Zheng , Yufu Qu

Designing a point cloud upsampler, which aims to generate a clean and dense point cloud given a sparse point representation, is a fundamental and challenging problem in computer vision. A line of attempts achieves this goal by establishing…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Pingping Cai , Zhenyao Wu , Xinyi Wu , Song Wang

Point cloud filtering is a fundamental problem in geometry modeling and processing. Despite of significant advancement in recent years, the existing methods still suffer from two issues: 1) they are either designed without preserving sharp…

图形学 · 计算机科学 2020-09-29 Dongbo Zhang , Xuequan Lu , Hong Qin , Ying He