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Diffusion models have recently shown promise in time series forecasting, particularly for probabilistic predictions. However, they often fail to achieve state-of-the-art point estimation performance compared to regression-based methods.…

人工智能 · 计算机科学 2025-11-25 Hang Ding , Xue Wang , Tian Zhou , Tao Yao

Point clouds are often sparse and incomplete. Existing shape completion methods are incapable of generating details of objects or learning the complex point distributions. To this end, we propose a cascaded refinement network together with…

计算机视觉与模式识别 · 计算机科学 2020-06-08 Xiaogang Wang , Marcelo H Ang , Gim Hee Lee

Point cloud completion aims to recover accurate global geometry and preserve fine-grained local details from partial point clouds. Conventional methods typically predict unseen points directly from 3D point cloud coordinates or use…

计算机视觉与模式识别 · 计算机科学 2024-08-14 Jinpeng Yu , Binbin Huang , Yuxuan Zhang , Huaxia Li , Xu Tang , Shenghua Gao

Mesh reconstruction from multi-view images is a fundamental problem in computer vision, but its performance degrades significantly under sparse-view conditions, especially in unseen regions where no ground-truth observations are available.…

计算机视觉与模式识别 · 计算机科学 2026-01-28 Haoyang Wang , Liming Liu , Peiheng Wang , Junlin Hao , Jiangkai Wu , Xinggong Zhang

Existing point cloud modeling datasets primarily express the modeling precision by pose or trajectory precision rather than the point cloud modeling effect itself. Under this demand, we first independently construct a set of LiDAR system…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Changjie Qiu , Zhiyong Wang , Xiuhong Lin , Yu Zang , Cheng Wang , Weiquan Liu

Robust imitation learning for robot manipulation requires comprehensive 3D perception, yet many existing methods struggle in cluttered environments. Fixed camera view approaches are vulnerable to perspective changes, and 3D point cloud…

机器人学 · 计算机科学 2025-07-08 Daqi Huang , Zhehao Cai , Yuzhi Hao , Zechen Li , Chee-Meng Chew

The common occurrence of occlusion-induced incompleteness in point clouds has made point cloud completion (PCC) a highly-concerned task in the field of geometric processing. Existing PCC methods typically produce complete point clouds from…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Jisheng Chu , Wenrui Li , Xingtao Wang , Kanglin Ning , Yidan Lu , Xiaopeng Fan

Reconstructing 3D shapes from a sequence of images has long been a problem of interest in computer vision. Classical Structure from Motion (SfM) methods have attempted to solve this problem through projected point displacement \& bundle…

计算机视觉与模式识别 · 计算机科学 2017-11-07 Rui Zhu , Chaoyang Wang , Chen-Hsuan Lin , Ziyan Wang , Simon Lucey

Generating realistic 3D point clouds is a fundamental problem in computer vision with applications in remote sensing, robotics, and digital object modeling. Existing generative approaches primarily capture geometry, and when semantics are…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Gunner Stone , Sushmita Sarker , Alireza Tavakkoli

Generalizable 3D object reconstruction from single-view RGB-D images remains a challenging task, particularly with real-world data. Current state-of-the-art methods develop Transformer-based implicit field learning, necessitating an…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Yushuang Wu , Luyue Shi , Junhao Cai , Weihao Yuan , Lingteng Qiu , Zilong Dong , Liefeng Bo , Shuguang Cui , Xiaoguang Han

3D point cloud semantic segmentation is fundamental for autonomous driving. Most approaches in the literature neglect an important aspect, i.e., how to deal with domain shift when handling dynamic scenes. This can significantly hinder the…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Cristiano Saltori , Evgeny Krivosheev , Stéphane Lathuilière , Nicu Sebe , Fabio Galasso , Giuseppe Fiameni , Elisa Ricci , Fabio Poiesi

The problem of obtaining dense reconstruction of an object in a natural sequence of images has been long studied in computer vision. Classically this problem has been solved through the application of bundle adjustment (BA). More recently,…

计算机视觉与模式识别 · 计算机科学 2017-12-04 Rui Zhu , Chaoyang Wang , Chen-Hsuan Lin , Ziyan Wang , Simon Lucey

Point cloud completion referring to completing 3D shapes from partial 3D point clouds is a fundamental problem for 3D point cloud analysis tasks. Benefiting from the development of deep neural networks, researches on point cloud completion…

计算机视觉与模式识别 · 计算机科学 2022-03-17 Jun Wang , Ying Cui , Dongyan Guo , Junxia Li , Qingshan Liu , Chunhua Shen

Point cloud completion seeks to recover geometrically consistent shapes from partial or sparse 3D observations. Although recent methods have achieved reasonable global shape reconstruction, they often rely on Euclidean proximity and…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Jianan Sun , Dongzhihan Wang , Mingyu Fan

Recently, 3D Gaussian Splatting has emerged as a prominent research direction owing to its ultrarapid training speed and high-fidelity rendering capabilities. However, the unstructured and irregular nature of Gaussian point clouds poses…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Xiao Ren , Yu Liu , Ning An , Jian Cheng , Xin Qiao , He Kong

Salient object detection (SOD) requires modeling both long-range contextual dependencies and fine-grained structural details, which remains challenging for convolutional, transformer-based, and Mamba-based state space models. While recent…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Suklav Ghosh , Arijit Sur , Pinaki Mitra

State Space Models (SSMs), especially recent Mamba architecture, have achieved remarkable success in sequence modeling tasks. However, extending SSMs to computer vision remains challenging due to the non-sequential structure of visual data…

计算机视觉与模式识别 · 计算机科学 2026-03-23 Puskal Khadka , KC Santosh

Accurately capturing the full-range response of structures is crucial in structural health monitoring (SHM) for ensuring safety and operational integrity. However, limited sensor deployment due to cost, accessibility, or scale often hinders…

计算工程、金融与科学 · 计算机科学 2025-09-25 Wingho Feng , Quanwang Li , Chen Wang , Jian-sheng Fan

Autoregressive point cloud generation has long lagged behind diffusion-based approaches in quality. The performance gap stems from the fact that autoregressive models impose an artificial ordering on inherently unordered point sets, forcing…

计算机视觉与模式识别 · 计算机科学 2025-11-27 Ziqiao Meng , Qichao Wang , Zhiyang Dou , Zixing Song , Zhipeng Zhou , Irwin King , Peilin Zhao

Autoregressive point cloud generation has long lagged behind diffusion-based approaches in quality. The performance gap stems from the fact that autoregressive models impose an artificial ordering on inherently unordered point sets, forcing…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Ziqiao Meng , Qichao Wang , Zhiyang Dou , Zixing Song , Zhipeng Zhou , Irwin King , Peilin Zhao