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This paper shows the effectiveness of 2D backbone scaling and pretraining for pillar-based 3D object detectors. Pillar-based methods mainly employ randomly initialized 2D convolution neural network (ConvNet) for feature extraction and fail…

计算机视觉与模式识别 · 计算机科学 2023-11-30 Weixin Mao , Tiancai Wang , Diankun Zhang , Junjie Yan , Osamu Yoshie

Point cloud compression significantly reduces data volume but sacrifices reconstruction quality, highlighting the need for advanced quality enhancement techniques. Most existing approaches focus primarily on point-to-point fidelity, often…

图像与视频处理 · 电气工程与系统科学 2025-03-04 Tian Guo , Hui Yuan , Qi Liu , Honglei Su , Raouf Hamzaoui , Sam Kwong

Infrastructure-based perception plays a crucial role in intelligent transportation systems, offering global situational awareness and enabling cooperative autonomy. However, existing camera-based detection models often underperform in such…

计算机视觉与模式识别 · 计算机科学 2025-10-29 Yun Zhang , Zhaoliang Zheng , Johnson Liu , Zhiyu Huang , Zewei Zhou , Zonglin Meng , Tianhui Cai , Jiaqi Ma

Point cloud compression has garnered significant interest in computer vision. However, existing algorithms primarily cater to human vision, while most point cloud data is utilized for machine vision tasks. To address this, we propose a…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Lei Liu , Zhihao Hu , Zhenghao Chen

Effective BEV object detection on infrastructure can greatly improve traffic scenes understanding and vehicle-toinfrastructure (V2I) cooperative perception. However, cameras installed on infrastructure have various postures, and previous…

计算机视觉与模式识别 · 计算机科学 2023-04-17 Siqi Fan , Zhe Wang , Xiaoliang Huo , Yan Wang , Jingjing Liu

Accurate 3D object detection in autonomous driving is critical yet challenging due to occlusions, varying object sizes, and complex urban environments. This paper introduces the KAN-RCBEVDepth method, an innovative approach aimed at…

计算机视觉与模式识别 · 计算机科学 2024-08-28 Zhihao Lai , Chuanhao Liu , Shihui Sheng , Zhiqiang Zhang

Boundary representation (B-rep) models are the standard way 3D shapes are described in Computer-Aided Design (CAD) applications. They combine lightweight parametric curves and surfaces with topological information which connects the…

Grasping for novel objects is important for robot manipulation in unstructured environments. Most of current works require a grasp sampling process to obtain grasp candidates, combined with local feature extractor using deep learning. This…

机器人学 · 计算机科学 2020-03-24 Peiyuan Ni , Wenguang Zhang , Xiaoxiao Zhu , Qixin Cao

This study introduces a method for efficiently detecting objects within 3D point clouds using convolutional neural networks (CNNs). Our approach adopts a unique feature-centric voting mechanism to construct convolutional layers that…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Tianyi Lyu , Dian Gu , Peiyuan Chen , Yaoting Jiang , Zhenhong Zhang , Huadong Pang , Li Zhou , Yiping Dong

We present a novel lightweight convolutional neural network for point cloud analysis. In contrast to many current CNNs which increase receptive field by downsampling point cloud, our method directly operates on the entire point sets without…

计算机视觉与模式识别 · 计算机科学 2021-09-27 Xu Wang , Yuyan Li , Ye Duan

We introduce an end-to-end learnable technique to robustly identify feature edges in 3D point cloud data. We represent these edges as a collection of parametric curves (i.e.,lines, circles, and B-splines). Accordingly, our deep neural…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Xiaogang Wang , Yuelang Xu , Kai Xu , Andrea Tagliasacchi , Bin Zhou , Ali Mahdavi-Amiri , Hao Zhang

Tracking vehicles in LIDAR point clouds is a challenging task due to the sparsity of the data and the dense search space. The lack of structure in point clouds impedes the use of convolution filters usually employed in 2D object tracking.…

计算机视觉与模式识别 · 计算机科学 2020-05-07 Jesus Zarzar , Silvio Giancola , Bernard Ghanem

Convolution-based and Transformer-based vision backbone networks process images into the grid or sequence structures, respectively, which are inflexible for capturing irregular objects. Though Vision GNN (ViG) adopts graph-level features…

计算机视觉与模式识别 · 计算机科学 2024-12-11 Jiafu Wu , Jian Li , Jiangning Zhang , Boshen Zhang , Mingmin Chi , Yabiao Wang , Chengjie Wang

Accurately perceiving instances and predicting their future motion are key tasks for autonomous vehicles, enabling them to navigate safely in complex urban traffic. While bird's-eye view (BEV) representations are commonplace in perception…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Peizheng Li , Shuxiao Ding , Xieyuanli Chen , Niklas Hanselmann , Marius Cordts , Juergen Gall

The deployment of high-accuracy 3D object detection models from point cloud remains a significant challenge due to their substantial computational and memory requirements. To address this, we introduce StripDet, a novel lightweight…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Weichao Wang , Wendong Mao , Zhongfeng Wang

A large number of retinal vessel analysis methods based on image segmentation have emerged in recent years. However, existing methods depend on cumbersome backbones, such as VGG16 and ResNet-50, benefiting from their powerful feature…

图像与视频处理 · 电气工程与系统科学 2019-11-25 Ling Luo , Dingyu Xue , Xinglong Feng

One of the main challenges since the advancement of convolutional neural networks is how to connect the extracted feature map to the final classification layer. VGG models used two sets of fully connected layers for the classification part…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Mohammad Rahimzadeh , AmirAli Askari , Soroush Parvin , Elnaz Safi , Mohammad Reza Mohammadi

Place recognition is an important technique for autonomous cars to achieve full autonomy since it can provide an initial guess to online localization algorithms. Although current methods based on images or point clouds have achieved…

计算机视觉与模式识别 · 计算机科学 2023-08-16 Shuhang Zheng , Yixuan Li , Zhu Yu , Beinan Yu , Si-Yuan Cao , Minhang Wang , Jintao Xu , Rui Ai , Weihao Gu , Lun Luo , Hui-Liang Shen

Semantic segmentation of 3D point cloud is an essential task for autonomous driving environment perception. The pipeline of most pointwise point cloud semantic segmentation methods includes points sampling, neighbor searching, feature…

计算机视觉与模式识别 · 计算机科学 2022-06-01 Chuanyu Luo , Xiaohan Li , Nuo Cheng , Han Li , Shengguang Lei , Pu Li

3D object detection from point clouds plays a critical role in autonomous driving. Currently, the primary methods for point cloud processing are voxel-based and pillar-based approaches. Voxel-based methods offer high accuracy through…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Liu Qifeng , Zhao Dawei , Dong Yabo , Xiao Liang , Wang Juan , Min Chen , Li Fuyang , Jiang Weizhong , Lu Dongming , Nie Yiming