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Current 3D object detection methods for indoor scenes mainly follow the voting-and-grouping strategy to generate proposals. However, most methods utilize instance-agnostic groupings, such as ball query, leading to inconsistent semantic…

计算机视觉与模式识别 · 计算机科学 2023-12-22 Yun Zhu , Le Hui , Yaqi Shen , Jin Xie

3D visual grounding aims to locate the referred target object in 3D point cloud scenes according to a free-form language description. Previous methods mostly follow a two-stage paradigm, i.e., language-irrelevant detection and cross-modal…

计算机视觉与模式识别 · 计算机科学 2023-10-13 Junyu Luo , Jiahui Fu , Xianghao Kong , Chen Gao , Haibing Ren , Hao Shen , Huaxia Xia , Si Liu

Discovering inter-point connection for efficient high-dimensional feature extraction from point coordinate is a key challenge in processing point cloud. Most existing methods focus on designing efficient local feature extractors while…

计算机视觉与模式识别 · 计算机科学 2023-04-28 Zihao Li , Pan Gao , Hui Yuan , Ran Wei , Manoranjan Paul

Although accurate and fast point cloud classification is a fundamental task in 3D applications, it is difficult to achieve this purpose due to the irregularity and disorder of point clouds that make it challenging to achieve effective and…

计算机视觉与模式识别 · 计算机科学 2022-03-03 Dening Lu , Qian Xie , Linlin Xu , Jonathan Li

Obviously, the object is the key factor of the 3D single object tracking (SOT) task. However, previous Siamese-based trackers overlook the negative effects brought by randomly dropped object points during backbone sampling, which hinder…

计算机视觉与模式识别 · 计算机科学 2023-01-31 Kaijie Zhao , Haitao Zhao , Zhongze Wang , Jingchao Peng , Zhengwei Hu

We present CpT: Convolutional point Transformer - a novel deep learning architecture for dealing with the unstructured nature of 3D point cloud data. CpT is an improvement over existing attention-based Convolutions Neural Networks as well…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Chaitanya Kaul , Joshua Mitton , Hang Dai , Roderick Murray-Smith

Point cloud registration is a fundamental task in the fields of computer vision and robotics. Recent developments in transformer-based methods have demonstrated enhanced performance in this domain. However, the standard attention mechanism…

计算机视觉与模式识别 · 计算机科学 2024-06-26 Meiling Wang , Guangyan Chen , Yi Yang , Li Yuan , Yufeng Yue

Vision Transformers (ViT) and Visual Prompt Tuning (VPT) achieve state-of-the-art performance with improved efficiency in various computer vision tasks. This suggests a promising paradigm shift of adapting pre-trained ViT models to…

机器学习 · 计算机科学 2024-02-27 Wenlong Deng , Christos Thrampoulidis , Xiaoxiao Li

Recent machine learning-based multi-object tracking (MOT) frameworks are becoming popular for 3-D point clouds. Most traditional tracking approaches use filters (e.g., Kalman filter or particle filter) to predict object locations in a time…

计算机视觉与模式识别 · 计算机科学 2020-02-27 Sukai Wang , Yuxiang Sun , Chengju Liu , Ming Liu

Though 3D object detection from point clouds has achieved rapid progress in recent years, the lack of flexible and high-performance proposal refinement remains a great hurdle for existing state-of-the-art two-stage detectors. Previous works…

计算机视觉与模式识别 · 计算机科学 2021-09-16 Hualian Sheng , Sijia Cai , Yuan Liu , Bing Deng , Jianqiang Huang , Xian-Sheng Hua , Min-Jian Zhao

The field of 3D object detection from point clouds is rapidly advancing in computer vision, aiming to accurately and efficiently detect and localize objects in three-dimensional space. Current 3D detectors commonly fall short in terms of…

计算机视觉与模式识别 · 计算机科学 2024-06-13 Hualian Sheng , Sijia Cai , Na Zhao , Bing Deng , Qiao Liang , Min-Jian Zhao , Jieping Ye

Owing to the difficulties of mining spatial-temporal cues, the existing approaches for video salient object detection (VSOD) are limited in understanding complex and noisy scenarios, and often fail in inferring prominent objects. To…

计算机视觉与模式识别 · 计算机科学 2021-06-08 Yingxia Jiao , Xiao Wang , Yu-Cheng Chou , Shouyuan Yang , Ge-Peng Ji , Rong Zhu , Ge Gao

Recent feed-forward networks have achieved remarkable progress in sparse-view 3D reconstruction by predicting dense point maps directly from RGB images. However, they often suffer from geometric inconsistencies and limited fine-grained…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Yutong Chen , Yiming Wang , Xucong Zhang , Sergey Prokudin , Siyu Tang

Capturing both local and global features of irregular point clouds is essential to 3D object detection (3OD). However, mainstream 3D detectors, e.g., VoteNet and its variants, either abandon considerable local features during pooling…

计算机视觉与模式识别 · 计算机科学 2022-09-01 Baian Chen , Liangliang Nan , Haoran Xie , Dening Lu , Fu Lee Wang , Mingqiang Wei

Feature learning for 3D object detection from point clouds is very challenging due to the irregularity of 3D point cloud data. In this paper, we propose Pointformer, a Transformer backbone designed for 3D point clouds to learn features…

计算机视觉与模式识别 · 计算机科学 2021-06-23 Xuran Pan , Zhuofan Xia , Shiji Song , Li Erran Li , Gao Huang

Video-based 3D human pose and shape estimations are evaluated by intra-frame accuracy and inter-frame smoothness. Although these two metrics are responsible for different ranges of temporal consistency, existing state-of-the-art methods…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Xiaolong Shen , Zongxin Yang , Xiaohan Wang , Jianxin Ma , Chang Zhou , Yi Yang

The extraction of modular object-centric representations for downstream tasks is an emerging area of research. Learning grounded representations of objects that are guaranteed to be stable and invariant promises robust performance across…

机器学习 · 计算机科学 2024-01-26 Avinash Kori , Francesco Locatello , Fabio De Sousa Ribeiro , Francesca Toni , Ben Glocker

Existing methods for Salient Object Detection in Optical Remote Sensing Images (ORSI-SOD) mainly adopt Convolutional Neural Networks (CNNs) as the backbone, such as VGG and ResNet. Since CNNs can only extract features within certain…

计算机视觉与模式识别 · 计算机科学 2023-09-18 Gongyang Li , Zhen Bai , Zhi Liu , Xinpeng Zhang , Haibin Ling

The extensive application of unmanned aerial vehicles (UAVs) in military reconnaissance, environmental monitoring, and related domains has created an urgent need for accurate and efficient multi-object tracking (MOT) technologies, which are…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Juanqin Liu , Leonardo Plotegher , Eloy Roura , Shaoming He

3D single object tracking is a key issue for autonomous following robot, where the robot should robustly track and accurately localize the target for efficient following. In this paper, we propose a 3D tracking method called 3D-SiamRPN…

计算机视觉与模式识别 · 计算机科学 2021-08-13 Zheng Fang , Sifan Zhou , Yubo Cui , Sebastian Scherer