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We present a novel 3D object detection framework, named IPOD, based on raw point cloud. It seeds object proposal for each point, which is the basic element. This paradigm provides us with high recall and high fidelity of information,…

计算机视觉与模式识别 · 计算机科学 2018-12-14 Zetong Yang , Yanan Sun , Shu Liu , Xiaoyong Shen , Jiaya Jia

Unsupervised domain adaptation (DA) with the aid of pseudo labeling techniques has emerged as a crucial approach for domain-adaptive 3D object detection. While effective, existing DA methods suffer from a substantial drop in performance…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Zhuoxiao Chen , Yadan Luo , Zheng Wang , Mahsa Baktashmotlagh , Zi Huang

3D object detection is a common function within the perception system of an autonomous vehicle and outputs a list of 3D bounding boxes around objects of interest. Various 3D object detection methods have relied on fusion of different sensor…

计算机视觉与模式识别 · 计算机科学 2020-11-02 Eduardo Arnold , Mehrdad Dianati , Robert de Temple , Saber Fallah

In this paper, we propose SparseDet for end-to-end 3D object detection from point cloud. Existing works on 3D object detection rely on dense object candidates over all locations in a 3D or 2D grid following the mainstream methods for object…

计算机视觉与模式识别 · 计算机科学 2022-06-03 Jianhong Han , Zhaoyi Wan , Zhe Liu , Jie Feng , Bingfeng Zhou

3D object detection from LiDAR point cloud is a challenging problem in 3D scene understanding and has many practical applications. In this paper, we extend our preliminary work PointRCNN to a novel and strong point-cloud-based 3D object…

计算机视觉与模式识别 · 计算机科学 2020-03-17 Shaoshuai Shi , Zhe Wang , Jianping Shi , Xiaogang Wang , Hongsheng Li

LiDAR and cameras are complementary sensors for 3D object detection in autonomous driving. However, it is challenging to explore the unnatural interaction between point clouds and images, and the critical factor is how to conduct feature…

计算机视觉与模式识别 · 计算机科学 2024-01-11 Ziying Song , Haiyue Wei , Lin Bai , Lei Yang , Caiyan Jia

In recent years, object detection has shown impressive results using supervised deep learning, but it remains challenging in a cross-domain environment. The variations of illumination, style, scale, and appearance in different domains can…

计算机视觉与模式识别 · 计算机科学 2019-08-12 Rongchang Xie , Fei Yu , Jiachao Wang , Yizhou Wang , Li Zhang

Point cloud based place recognition is still an open issue due to the difficulty in extracting local features from the raw 3D point cloud and generating the global descriptor, and it's even harder in the large-scale dynamic environments. In…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Zhe Liu , Shunbo Zhou , Chuanzhe Suo , Yingtian Liu , Peng Yin , Hesheng Wang , Yun-Hui Liu

Point clouds and images could provide complementary information when representing 3D objects. Fusing the two kinds of data usually helps to improve the detection results. However, it is challenging to fuse the two data modalities, due to…

计算机视觉与模式识别 · 计算机科学 2021-08-31 Xun Tan , Xingyu Chen , Guowei Zhang , Jishiyu Ding , Xuguang Lan

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

Cross-domain object detection is more challenging than object classification since multiple objects exist in an image and the location of each object is unknown in the unlabeled target domain. As a result, when we adapt features of…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Junguang Jiang , Baixu Chen , Jianmin Wang , Mingsheng Long

Manual annotation of large-scale point cloud dataset for varying tasks such as 3D object classification, segmentation and detection is often laborious owing to the irregular structure of point clouds. Self-supervised learning, which…

计算机视觉与模式识别 · 计算机科学 2022-03-25 Mohamed Afham , Isuru Dissanayake , Dinithi Dissanayake , Amaya Dharmasiri , Kanchana Thilakarathna , Ranga Rodrigo

Cloud-edge collaboration enhances machine perception by combining the strengths of edge and cloud computing. Edge devices capture raw data (e.g., 3D point clouds) and extract salient features, which are sent to the cloud for deeper analysis…

图像与视频处理 · 电气工程与系统科学 2026-03-05 Chongzhen Tian , Hui Yuan , Pan Zhao , Chang Sun , Raouf Hamzaoui , Sam Kwong

The convenience of 3D sensors has led to an increase in the use of 3D point clouds in various applications. However, the differences in acquisition devices or scenarios lead to divergence in the data distribution of point clouds, which…

计算机视觉与模式识别 · 计算机科学 2024-01-09 Zhimin Zhang , Xiang Gao , Wei Hu

Conventional 3D object detection approaches concentrate on bounding boxes representation learning with several parameters, i.e., localization, dimension, and orientation. Despite its popularity and universality, such a straightforward…

计算机视觉与模式识别 · 计算机科学 2022-04-01 Xuelin Qian , Li Wang , Yi Zhu , Li Zhang , Yanwei Fu , Xiangyang Xue

Classification and segmentation of 3D point clouds are important tasks in computer vision. Because of the irregular nature of point clouds, most of the existing methods convert point clouds into regular 3D voxel grids before they are used…

计算机视觉与模式识别 · 计算机科学 2018-12-05 Wei Zeng , Theo Gevers

Smart monitoring using three-dimensional (3D) image sensors has been attracting attention in the context of smart cities. In smart monitoring, object detection from point cloud data acquired by 3D image sensors is implemented for detecting…

计算机视觉与模式识别 · 计算机科学 2022-09-27 Kairi Tokuda , Ryoichi Shinkuma , Takehiro Sato , Eiji Oki

Semantic scene understanding from point clouds is particularly challenging as the points reflect only a sparse set of the underlying 3D geometry. Previous works often convert point cloud into regular grids (e.g. voxels or bird-eye view…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Yinyu Nie , Ji Hou , Xiaoguang Han , Matthias Nießner

Recently, the advancement of 3D point clouds in deep learning has attracted intensive research in different application domains such as computer vision and robotic tasks. However, creating feature representation of robust, discriminative…

计算机视觉与模式识别 · 计算机科学 2021-02-23 Xu Wang , Yi Jin , Yigang Cen , Tao Wang , Yidong Li

Detecting objects in 3D space using multiple cameras, known as Multi-Camera 3D Object Detection (MC3D-Det), has gained prominence with the advent of bird's-eye view (BEV) approaches. However, these methods often struggle when faced with…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Hao Lu , Yunpeng Zhang , Qing Lian , Dalong Du , Yingcong Chen