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Despite the progress on 3D point cloud deep learning, most prior works focus on learning features that are invariant to translation and point permutation, and very limited efforts have been devoted for rotation invariant property. Several…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Zhiyuan Zhang , Licheng Yang , Zhiyu Xiang

Current 3D object detection methods are heavily influenced by 2D detectors. In order to leverage architectures in 2D detectors, they often convert 3D point clouds to regular grids (i.e., to voxel grids or to bird's eye view images), or rely…

计算机视觉与模式识别 · 计算机科学 2019-08-26 Charles R. Qi , Or Litany , Kaiming He , Leonidas J. Guibas

Monocular 3D object detection is a fundamental but very important task to many applications including autonomous driving, robotic grasping and augmented reality. Existing leading methods tend to estimate the depth of the input image first,…

计算机视觉与模式识别 · 计算机科学 2022-12-06 Han Sun , Zhaoxin Fan , Zhenbo Song , Zhicheng Wang , Kejian Wu , Jianfeng Lu

Extending state-of-the-art object detectors from image to video is challenging. The accuracy of detection suffers from degenerated object appearances in videos, e.g., motion blur, video defocus, rare poses, etc. Existing work attempts to…

计算机视觉与模式识别 · 计算机科学 2017-08-21 Xizhou Zhu , Yujie Wang , Jifeng Dai , Lu Yuan , Yichen Wei

In this work, we address the problem of 3D object detection from point cloud data in real time. For autonomous vehicles to work, it is very important for the perception component to detect the real world objects with both high accuracy and…

计算机视觉与模式识别 · 计算机科学 2021-06-23 Abhinav Sagar

Semantic parsing of large-scale 3D point clouds is an important research topic in computer vision and remote sensing fields. Most existing approaches utilize hand-crafted features for each modality independently and combine them in a…

计算机视觉与模式识别 · 计算机科学 2017-07-24 Fangyu Liu , Shuaipeng Li , Liqiang Zhang , Chenghu Zhou , Rongtian Ye , Yuebin Wang , Jiwen Lu

This paper proposes a novel point-cloud-based place recognition system that adopts a deep learning approach for feature extraction. By using a convolutional neural network pre-trained on color images to extract features from a range image…

计算机视觉与模式识别 · 计算机科学 2018-10-24 Ting Sun , Ming Liu , Haoyang Ye , Dit-Yan Yeung

Point clouds, being the simple and compact representation of surface geometry of 3D objects, have gained increasing popularity with the evolution of deep learning networks for classification and segmentation tasks. Unlike human, teaching…

计算机视觉与模式识别 · 计算机科学 2021-01-29 Sindhu Hegde , Shankar Gangisetty

The task of detecting 3D objects in traffic scenes has a pivotal role in many real-world applications. However, the performance of 3D object detection is lower than that of 2D object detection due to the lack of powerful 3D feature…

计算机视觉与模式识别 · 计算机科学 2019-09-17 Xuesong Li , Jose Guivant , Ngaiming Kwok , Yongzhi Xu , Ruowei Li , Hongkun Wu

In 2D image processing, some attempts decompose images into high and low frequency components for describing edge and smooth parts respectively. Similarly, the contour and flat area of 3D objects, such as the boundary and seat area of a…

计算机视觉与模式识别 · 计算机科学 2021-02-09 Mutian Xu , Junhao Zhang , Zhipeng Zhou , Mingye Xu , Xiaojuan Qi , Yu Qiao

Detecting objects in aerial images is challenging for at least two reasons: (1) target objects like pedestrians are very small in pixels, making them hardly distinguished from surrounding background; and (2) targets are in general sparsely…

计算机视觉与模式识别 · 计算机科学 2019-08-28 Fan Yang , Heng Fan , Peng Chu , Erik Blasch , Haibin Ling

Industrial anomaly detection for 2D objects has gained significant attention and achieved progress in anomaly detection (AD) methods. However, identifying 3D depth anomalies using only 2D information is insufficient. Despite explicitly…

计算机视觉与模式识别 · 计算机科学 2025-07-28 An Xiang , Zixuan Huang , Xitong Gao , Kejiang Ye , Cheng-zhong Xu

Few-shot object detection (FSOD) aims at extending a generic detector for novel object detection with only a few training examples. It attracts great concerns recently due to the practical meanings. Meta-learning has been demonstrated to be…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Zichen Wang , Bo Yang , Haonan Yue , Zhenghao Ma

We propose a method for joint detection and tracking of multiple objects in 3D point clouds, a task conventionally treated as a two-step process comprising object detection followed by data association. Our method embeds both steps into a…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Jyoti Kini , Ajmal Mian , Mubarak Shah

State-of-the-art methods for driving-scene LiDAR-based perception (including point cloud semantic segmentation, panoptic segmentation and 3D detection, \etc) often project the point clouds to 2D space and then process them via 2D…

计算机视觉与模式识别 · 计算机科学 2021-09-14 Xinge Zhu , Hui Zhou , Tai Wang , Fangzhou Hong , Wei Li , Yuexin Ma , Hongsheng Li , Ruigang Yang , Dahua Lin

3D shape recognition has attracted more and more attention as a task of 3D vision research. The proliferation of 3D data encourages various deep learning methods based on 3D data. Now there have been many deep learning models based on…

计算机视觉与模式识别 · 计算机科学 2020-03-02 Yaxin Zhao , Jichao Jiao , Tangkun Zhang

Fully convolutional neural networks (FCNs) have shown outstanding performance in many dense labeling problems. One key pillar of these successes is mining relevant information from features in convolutional layers. However, how to better…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Pingping Zhang , Dong Wang , Huchuan Lu , Hongyu Wang , Xiang Ruan

This paper aims at developing a faster and a more accurate solution to the amodal 3D object detection problem for indoor scenes. It is achieved through a novel neural network that takes a pair of RGB-D images as the input and delivers…

计算机视觉与模式识别 · 计算机科学 2018-02-22 Qianhui Luo , Huifang Ma , Yue Wang , Li Tang , Rong Xiong

In this paper, we propose an efficient feature pruning strategy for 3D small object detection. Conventional 3D object detection methods struggle on small objects due to the weak geometric information from a small number of points. Although…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Xiuwei Xu , Zhihao Sun , Ziwei Wang , Hongmin Liu , Jie Zhou , Jiwen Lu

Fine-grained 3D shape classification is important for shape understanding and analysis, which poses a challenging research problem. However, the studies on the fine-grained 3D shape classification have rarely been explored, due to the lack…

计算机视觉与模式识别 · 计算机科学 2021-02-03 Xinhai Liu , Zhizhong Han , Yu-Shen Liu , Matthias Zwicker