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With the increased use of virtual and augmented reality applications, the importance of point cloud data rises. High-quality capturing of point clouds is still expensive and thus, the need for point cloud super-resolution or point cloud…

图像与视频处理 · 电气工程与系统科学 2022-05-04 Viktoria Heimann , Andreas Spruck , André Kaup

To reduce cost in storing, processing and visualizing a large-scale point cloud, we consider a randomized resampling strategy to select a representative subset of points while preserving application-dependent features. The proposed strategy…

计算机视觉与模式识别 · 计算机科学 2018-02-14 Siheng Chen , Dong Tian , Chen Feng , Anthony Vetro , Jelena Kovačević

Point clouds produced by 3D scanning are often sparse, non-uniform, and noisy. Recent upsampling approaches aim to generate a dense point set, while achieving both distribution uniformity and proximity-to-surface, and possibly amending…

计算机视觉与模式识别 · 计算机科学 2021-06-10 Ruihui Li , Xianzhi Li , Pheng-Ann Heng , Chi-Wing Fu

The search for refining 3D LiDAR data has attracted growing interest motivated by recent techniques such as supervised learning or generative model-based methods. Existing approaches have shown the possibilities for using diffusion models…

计算机视觉与模式识别 · 计算机科学 2024-07-24 Sander Elias Magnussen Helgesen , Kazuto Nakashima , Jim Tørresen , Ryo Kurazume

Accurate 3D scene understanding in outdoor environments heavily relies on high-quality point clouds. However, LiDAR-scanned data often suffer from extreme sparsity, severely hindering downstream 3D perception tasks. Existing point cloud…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Xianjing Cheng , Lintai Wu , Zuowen Wang , Junhui Hou , Jie Wen , Yong Xu

This work focuses on modeling dynamic urban environments for autonomous driving simulation. Contemporary data-driven methods using neural radiance fields have achieved photorealistic driving scene modeling, but they suffer from low…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Guile Wu , Dongfeng Bai , Bingbing Liu

The growing size of point clouds enlarges consumptions of storage, transmission, and computation of 3D scenes. Raw data is redundant, noisy, and non-uniform. Therefore, simplifying point clouds for achieving compact, clean, and uniform…

计算机视觉与模式识别 · 计算机科学 2022-03-18 Yuanqi Li , Jianwei Guo , Xinran Yang , Shun Liu , Jie Guo , Xiaopeng Zhang , Yanwen Guo

Point cloud completion is a fundamental task in 3D vision. A persistent challenge in this field is simultaneously preserving fine-grained details present in the input while ensuring the global structural integrity of the completed shape.…

计算机视觉与模式识别 · 计算机科学 2025-11-21 Lirui Zhang , Zhengkai Zhao , Zhi Zuo , Pan Gao , Jie Qin

Point clouds produced by 3D sensors are often sparse and noisy, posing challenges for tasks requiring dense and high-fidelity 3D representations. Prior work has explored both implicit feature-based upsampling and distance-function learning…

计算机视觉与模式识别 · 计算机科学 2025-09-25 Mahmoud Khater , Mona Strauss , Philipp von Olshausen , Alexander Reiterer

Autonomous vehicles (AVs) are expected to revolutionize transportation by improving efficiency and safety. Their success relies on 3D vision systems that effectively sense the environment and detect traffic agents. Among sensors AVs use to…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Amirhesam Aghanouri , Cristina Olaverri-Monreal

Point clouds acquired from 3D sensors are usually sparse and noisy. Point cloud upsampling is an approach to increase the density of the point cloud so that detailed geometric information can be restored. In this paper, we propose a Dual…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Zhi-Song Liu , Zijia Wang , Zhen Jia

A fast and accurate panoptic segmentation system for LiDAR point clouds is crucial for autonomous driving vehicles to understand the surrounding objects and scenes. Existing approaches usually rely on proposals or clustering to segment…

计算机视觉与模式识别 · 计算机科学 2023-02-06 Enxu Li , Ryan Razani , Yixuan Xu , Bingbing Liu

We address the problem of extending the capabilities of vision foundation models such as DINO, SAM, and CLIP, to 3D tasks. Specifically, we introduce a novel method to uplift 2D image features into Gaussian Splatting representations of 3D…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Juliette Marrie , Romain Menegaux , Michael Arbel , Diane Larlus , Julien Mairal

Self-supervised learning (SSL) on 3D point clouds has the potential to learn feature representations that can transfer to diverse sensors and multiple downstream perception tasks. However, recent SSL approaches fail to define pretext tasks…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Barza Nisar , Steven L. Waslander

Efficient data utilization is crucial for advancing 3D scene understanding in autonomous driving, where reliance on heavily human-annotated LiDAR point clouds challenges fully supervised methods. Addressing this, our study extends into…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Lingdong Kong , Xiang Xu , Jiawei Ren , Wenwei Zhang , Liang Pan , Kai Chen , Wei Tsang Ooi , Ziwei Liu

Gaussian Splatting (GS) has gained attention as a fast and effective method for novel view synthesis. It has also been applied to 3D reconstruction using multi-view images and can achieve fast and accurate 3D reconstruction. However, GS…

计算机视觉与模式识别 · 计算机科学 2025-05-30 Natsuki Takama , Shintaro Ito , Koichi Ito , Hwann-Tzong Chen , Takafumi Aoki

High resolution automotive radar sensors are required in order to meet the high bar of autonomous vehicles needs and regulations. However, current radar systems are limited in their angular resolution causing a technological gap. An…

信号处理 · 电气工程与系统科学 2022-06-07 Itai Orr , Moshik Cohen , Harel Damari , Meir Halachmi , Zeev Zalevsky

LiDAR point cloud semantic segmentation is essential for interpreting 3D environments in applications such as autonomous driving and robotics. Recent methods achieve strong performance by exploiting different point cloud representations or…

计算机视觉与模式识别 · 计算机科学 2025-09-16 Simone Mosco , Daniel Fusaro , Wanmeng Li , Emanuele Menegatti , Alberto Pretto

The LiDAR 3D object detector that strikes a balance between accuracy and speed is crucial for achieving real-time perception in autonomous driving. However, many existing LiDAR detection models depend on complex feature transformations,…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Rui Yu , Runkai Zhao , Jiagen Li , Qingsong Zhao , HuaiCheng Yan , Meng Wang

End-to-end autonomous driving provides a feasible way to automatically maximize overall driving system performance by directly mapping the raw pixels from a front-facing camera to control signals. Recent advanced methods construct a latent…

机器学习 · 计算机科学 2024-05-21 Zeyu Gao , Yao Mu , Chen Chen , Jingliang Duan , Shengbo Eben Li , Ping Luo , Yanfeng Lu