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We present a novel and high-performance 3D object detection framework, named PointVoxel-RCNN (PV-RCNN), for accurate 3D object detection from point clouds. Our proposed method deeply integrates both 3D voxel Convolutional Neural Network…

计算机视觉与模式识别 · 计算机科学 2021-04-12 Shaoshuai Shi , Chaoxu Guo , Li Jiang , Zhe Wang , Jianping Shi , Xiaogang Wang , Hongsheng Li

3D object recognition has attracted wide research attention in the field of multimedia and computer vision. With the recent proliferation of deep learning, various deep models with different representations have achieved the…

计算机视觉与模式识别 · 计算机科学 2018-08-24 Haoxuan You , Yifan Feng , Rongrong Ji , Yue Gao

Point clouds provide a compact and efficient representation of 3D shapes. While deep neural networks have achieved impressive results on point cloud learning tasks, they require massive amounts of manually labeled data, which can be costly…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Omid Poursaeed , Tianxing Jiang , Han Qiao , Nayun Xu , Vladimir G. Kim

In this paper, we propose a novel variable rate deep compression architecture that operates on raw 3D point cloud data. The majority of learning-based point cloud compression methods work on a downsampled representation of the data.…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Md Ahmed Al Muzaddid , William J. Beksi

Masked autoencoding has become a successful pretraining paradigm for Transformer models for text, images, and, recently, point clouds. Raw automotive datasets are suitable candidates for self-supervised pre-training as they generally are…

计算机视觉与模式识别 · 计算机科学 2023-03-10 Georg Hess , Johan Jaxing , Elias Svensson , David Hagerman , Christoffer Petersson , Lennart Svensson

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…

With the overwhelming trend of mask image modeling led by MAE, generative pre-training has shown a remarkable potential to boost the performance of fundamental models in 2D vision. However, in 3D vision, the over-reliance on…

计算机视觉与模式识别 · 计算机科学 2023-09-08 Ziyi Wang , Xumin Yu , Yongming Rao , Jie Zhou , Jiwen Lu

Most point cloud compression methods operate in the voxel or octree domain which is not the original representation of point clouds. Those representations either remove the geometric information or require high computational power for…

图像与视频处理 · 电气工程与系统科学 2022-06-23 Dat Thanh Nguyen , Andre Kaup

We introduce a supervised-learning framework for non-rigid point set alignment of a new kind - Displacements on Voxels Networks (DispVoxNets) - which abstracts away from the point set representation and regresses 3D displacement fields on…

计算机视觉与模式识别 · 计算机科学 2019-08-07 Soshi Shimada , Vladislav Golyanik , Edgar Tretschk , Didier Stricker , Christian Theobalt

Recent advances in 3D sensing have created unique challenges for computer vision. One fundamental challenge is finding a good representation for 3D sensor data. Most popular representations (such as PointNet) are proposed in the context of…

计算机视觉与模式识别 · 计算机科学 2020-12-23 Peiyun Hu , Jason Ziglar , David Held , Deva Ramanan

Point clouds data, as one kind of representation of 3D objects, are the most primitive output obtained by 3D sensors. Unlike 2D images, point clouds are disordered and unstructured. Hence it is not straightforward to apply classification…

计算机视觉与模式识别 · 计算机科学 2019-06-03 Zhuyang Xie , Junzhou Chen , Bo Peng

Recent advancements in vision-language pre-training (e.g. CLIP) have shown that vision models can benefit from language supervision. While many models using language modality have achieved great success on 2D vision tasks, the joint…

计算机视觉与模式识别 · 计算机科学 2023-01-19 Rui Huang , Xuran Pan , Henry Zheng , Haojun Jiang , Zhifeng Xie , Shiji Song , Gao Huang

In the last few years, deep neural networks opened the doors for big advances in novel view synthesis. Many of these approaches are based on a (coarse) proxy geometry obtained by structure from motion algorithms. Small deficiencies in this…

计算机视觉与模式识别 · 计算机科学 2023-11-09 Linus Franke , Darius Rückert , Laura Fink , Matthias Innmann , Marc Stamminger

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

In this paper, we introduce a reinforcement learning approach utilizing a novel topology-based information gain metric for directing the next best view of a noisy 3D sensor. The metric combines the disjoint sections of an observed surface…

机器人学 · 计算机科学 2021-03-23 Christopher Collander , William J. Beksi , Manfred Huber

LiDAR-based 3D detection in point cloud is essential in the perception system of autonomous driving. In this paper, we present LiDAR R-CNN, a second stage detector that can generally improve any existing 3D detector. To fulfill the…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Zhichao Li , Feng Wang , Naiyan Wang

Detecting pedestrians is a crucial task in autonomous driving systems to ensure the safety of drivers and pedestrians. The technologies involved in these algorithms must be precise and reliable, regardless of environment conditions. Relying…

计算机视觉与模式识别 · 计算机科学 2021-05-05 Òscar Lorente , Josep R. Casas , Santiago Royo , Ivan Caminal

LiDAR has become one of the primary 3D object detection sensors in autonomous driving. However, LiDAR's diverging point pattern with increasing distance results in a non-uniform sampled point cloud ill-suited to discretized volumetric…

计算机视觉与模式识别 · 计算机科学 2022-03-23 Jordan S. K. Hu , Tianshu Kuai , Steven L. Waslander

This paper proposes an innovative approach to Hierarchical Edge Aware 3D Point Cloud Learning (HEA-Net) that seeks to address the challenges of noise in point cloud data, and improve object recognition and segmentation by focusing on edge…

计算机视觉与模式识别 · 计算机科学 2023-10-26 Lei Li

Scene flow estimation aims to generate the 3D motion field of points between two consecutive frames of point clouds, which has wide applications in various fields. Existing point-based methods ignore the irregularity of point clouds and…

计算机视觉与模式识别 · 计算机科学 2025-01-22 Xuezhi Xiang , Xi Wang , Lei Zhang , Denis Ombati , Himaloy Himu , Xiantong Zhen