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Single object tracking in point clouds has been attracting more and more attention owing to the presence of LiDAR sensors in 3D vision. However, the existing methods based on deep neural networks focus mainly on training different models…

计算机视觉与模式识别 · 计算机科学 2024-01-25 Shengjing Tian , Jun Liu , Xiuping Liu

Although recent point cloud analysis achieves impressive progress, the paradigm of representation learning from a single modality gradually meets its bottleneck. In this work, we take a step towards more discriminative 3D point cloud…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Xu Yan , Heshen Zhan , Chaoda Zheng , Jiantao Gao , Ruimao Zhang , Shuguang Cui , Zhen Li

Most existing 3D point cloud object detection approaches heavily rely on large amounts of labeled training data. However, the labeling process is costly and time-consuming. This paper considers few-shot 3D point cloud object detection,…

计算机视觉与模式识别 · 计算机科学 2022-12-22 Shizhen Zhao , Xiaojuan Qi

Point clouds analysis has grasped researchers' eyes in recent years, while 3D semantic segmentation remains a problem. Most deep point clouds models directly conduct learning on 3D point clouds, which will suffer from the severe sparsity…

计算机视觉与模式识别 · 计算机科学 2021-09-21 Zhenhong Zou , Yizhe Li

Robotic manipulation systems benefit from complementary sensing modalities, where each provides unique environmental information. Point clouds capture detailed geometric structure, while RGB images provide rich semantic context. Current…

Recent years have witnessed huge successes in 3D object detection to recognize common objects for autonomous driving (e.g., vehicles and pedestrians). However, most methods rely heavily on a large amount of well-labeled training data. This…

计算机视觉与模式识别 · 计算机科学 2023-02-09 Jiawei Liu , Xingping Dong , Sanyuan Zhao , Jianbing Shen

Point clouds-based Networks have achieved great attention in 3D object classification, segmentation and indoor scene semantic parsing. In terms of face recognition, 3D face recognition method which directly consume point clouds as input is…

计算机视觉与模式识别 · 计算机科学 2019-11-25 Ziyu Zhang , Feipeng Da , Yi Yu

Recently, several networks that operate directly on point clouds have been proposed. There is significant utility in understanding their mechanisms to classify point clouds, which can potentially help diagnosing these networks and designing…

计算机视觉与模式识别 · 计算机科学 2020-09-02 Chen Ziwen , Wenxuan Wu , Zhongang Qi , Li Fuxin

The commonly adopted detect-then-match approach to registration finds difficulties in the cross-modality cases due to the incompatible keypoint detection and inconsistent feature description. We propose, 2D3D-MATR, a detection-free method…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Minhao Li , Zheng Qin , Zhirui Gao , Renjiao Yi , Chenyang Zhu , Yulan Guo , Kai Xu

In this paper, we aim to transfer CLIP's robust 2D generalization capabilities to identify 3D anomalies across unseen objects of highly diverse class semantics. To this end, we propose a unified framework to comprehensively detect and…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Qihang Zhou , Shibo He , Jiangtao Yan , Wenchao Meng , Jiming Chen

This work explores capabilities of the pre-trained CLIP vision-language model to identify satellite images affected by clouds. Several approaches to using the model to perform cloud presence detection are proposed and evaluated, including a…

计算机视觉与模式识别 · 计算机科学 2023-12-14 Mikolaj Czerkawski , Robert Atkinson , Christos Tachtatzis

Point cloud completion aims to recover raw point clouds captured by scanners from partial observations caused by occlusion and limited view angles. This makes it hard to recover details because the global feature is unlikely to capture the…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Songxue Gao , Chuanqi Jiao , Ruidong Chen , Weijie Wang , Weizhi Nie

Self-supervised models trained with a contrastive loss such as CLIP have shown to be very powerful in zero-shot classification settings. However, to be used as a zero-shot classifier these models require the user to provide new captions…

机器学习 · 计算机科学 2022-10-31 Bhawesh Kumar , Anil Palepu , Rudraksh Tuwani , Andrew Beam

3D reconstruction from images is a core problem in computer vision. With recent advances in deep learning, it has become possible to recover plausible 3D shapes even from single RGB images for the first time. However, obtaining detailed…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Tao Hu , Geng Lin , Zhizhong Han , Matthias Zwicker

Accurate and efficient characterization of nanoparticle morphology in Scanning Electron Microscopy (SEM) images is critical for ensuring product quality in nanomaterial synthesis and accelerating development. However, conventional deep…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Freida Barnatan , Emunah Goldstein , Einav Kalimian , Orchen Madar , Avi Huri , David Zitoun , Ya'akov Mandelbaum , Moshe Amitay

Geometry and color information provided by the point clouds are both crucial for 3D scene understanding. Two pieces of information characterize the different aspects of point clouds, but existing methods lack an elaborate design for the…

计算机视觉与模式识别 · 计算机科学 2023-06-02 Guofan Fan , Zekun Qi , Wenkai Shi , Kaisheng Ma

To alleviate the cost of collecting and annotating large-scale point cloud datasets, we propose an unsupervised learning approach to learn features from unlabeled point cloud "3D object" dataset by using part contrasting and object…

计算机视觉与模式识别 · 计算机科学 2019-08-14 Ling Zhang , Zhigang Zhu

Many existing approaches for 3D point cloud semantic segmentation are fully supervised. These fully supervised approaches heavily rely on large amounts of labeled training data that are difficult to obtain and cannot segment new classes…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Na Zhao , Tat-Seng Chua , Gim Hee Lee

LiDAR-based 3D object detectors often struggle to detect far-field objects due to the sparsity of point clouds at long ranges, which limits the availability of reliable geometric cues. To address this, prior approaches augment LiDAR data…

计算机视觉与模式识别 · 计算机科学 2026-02-09 Veerain Sood , Bnalin , Gaurav Pandey

The rise of large-scale models has catalyzed in-context learning as a powerful approach for multitasking, particularly in natural language and image processing. However, its application to 3D point cloud tasks has been largely unexplored.…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Mengyuan Liu , Zhongbin Fang , Xia Li , Joachim M. Buhmann , Deheng Ye , Xiangtai Li , Chen Change Loy