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3D motion estimation including scene flow and point cloud registration has drawn increasing interest. Inspired by 2D flow estimation, recent methods employ deep neural networks to construct the cost volume for estimating accurate 3D flow.…

计算机视觉与模式识别 · 计算机科学 2022-05-25 Xiaodong Gu , Chengzhou Tang , Weihao Yuan , Zuozhuo Dai , Siyu Zhu , Ping Tan

Current LiDAR point cloud-based 3D single object tracking (SOT) methods typically rely on point-based representation network. Despite demonstrated success, such networks suffer from some fundamental problems: 1) It contains pooling…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Yuxuan Lu , Jiahao Nie , Zhiwei He , Hongjie Gu , Xudong Lv

In the context of future manufacturing lines, removing fixtures will be a fundamental step to increase the flexibility of autonomous systems in assembly and logistic operations. Vision-based 3D pose estimation is a necessity to accurately…

机器人学 · 计算机科学 2020-10-05 Bjarne Grossmann , Francesco Rovida , Volker Krueger

3D object detection from raw and sparse point clouds has been far less treated to date, compared with its 2D counterpart. In this paper, we propose a novel framework called FVNet for 3D front-view proposal generation and object detection…

计算机视觉与模式识别 · 计算机科学 2019-11-27 Jie Zhou , Xin Tan , Zhiwei Shao , Lizhuang Ma

Most of the existing deep learning-based methods for 3D hand and human pose estimation from a single depth map are based on a common framework that takes a 2D depth map and directly regresses the 3D coordinates of keypoints, such as hand or…

计算机视觉与模式识别 · 计算机科学 2018-08-17 Gyeongsik Moon , Ju Yong Chang , Kyoung Mu Lee

We present AVOD, an Aggregate View Object Detection network for autonomous driving scenarios. The proposed neural network architecture uses LIDAR point clouds and RGB images to generate features that are shared by two subnetworks: a region…

计算机视觉与模式识别 · 计算机科学 2018-07-17 Jason Ku , Melissa Mozifian , Jungwook Lee , Ali Harakeh , Steven Waslander

Distribution-to-Distribution (D2D) point cloud registration algorithms are fast, interpretable, and perform well in unstructured environments. Unfortunately, existing strategies for predicting solution error for these methods are overly…

机器人学 · 计算机科学 2024-10-02 Matthew McDermott , Jason Rife

Recent volumetric 3D reconstruction methods can produce very accurate results, with plausible geometry even for unobserved surfaces. However, they face an undesirable trade-off when it comes to multi-view fusion. They can fuse all available…

计算机视觉与模式识别 · 计算机科学 2021-12-02 Noah Stier , Alexander Rich , Pradeep Sen , Tobias Höllerer

3D object detection and dense depth estimation are one of the most vital tasks in autonomous driving. Multiple sensor modalities can jointly attribute towards better robot perception, and to that end, we introduce a method for jointly…

计算机视觉与模式识别 · 计算机科学 2021-09-16 Shubham Shrivastava

In this paper, we present an Intersection-over-Union (IoU) guided two-stage 3D object detector with a voxel-to-point decoder. To preserve the necessary information from all raw points and maintain the high box recall in voxel based Region…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Jiale Li , Hang Dai , Ling Shao , Yong Ding

We investigate five different models to reconstruct the 3D $\gamma$-ray hit coordinates in five large \lacls monolithic crystals optically coupled to pixelated silicon photomultipliers. These scintillators have a base surface of 50 $\times$…

The four 10 kt Liquid Argon Time Projection Chambers (LArTPCs) of the future DUNE experiment will enable precise measurements of the oscillation parameters and the discovery of CP violation for leptons, thanks to their excellent 3D imaging…

仪器与探测器 · 物理学 2019-02-14 Andrea Scarpelli

Liquid argon time projection chambers are often used in neutrino physics and dark-matter searches because of their high spatial resolution. The images generated by these detectors are extremely sparse, as the energy values detected by most…

高能物理 - 实验 · 物理学 2025-04-14 Edgar E. Robles , Alejando Yankelevich , Wenjie Wu , Jianming Bian , Pierre Baldi

Direct comparison of three-dimensional (3D) objects is computationally expensive due to the need for translation, rotation, and scaling of the objects to evaluate their similarity. In applications of 3D object comparison, often identifying…

生物大分子 · 定量生物学 2018-12-31 Atilla Sit , Daisuke Kihara

It is possible to associate a highly constrained subset of relative 6 DoF poses between two 3D shapes, as long as the local surface orientation, the normal vector, is available at every surface point. Local shape features can be used to…

计算机视觉与模式识别 · 计算机科学 2018-08-29 Anders Glent Buch , Lilita Kiforenko , Dirk Kraft

Point clouds are widely used representations of 3D data, but determining the visibility of points from a given viewpoint remains a challenging problem due to their sparse nature and lack of explicit connectivity. Traditional methods, such…

图形学 · 计算机科学 2025-09-30 Jun-Hao Wang , Yi-Yang Tian , Baoquan Chen , Peng-Shuai Wang

The recent success of neural networks enables a better interpretation of 3D point clouds, but processing a large-scale 3D scene remains a challenging problem. Most current approaches divide a large-scale scene into small regions and combine…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Chunghyun Park , Yoonwoo Jeong , Minsu Cho , Jaesik Park

In this paper we explore the potential improvements in neutrino event reconstruction that a 3D pixelated readout could offer over a 2D projective wire readout for liquid argon time projection chambers. We simulate and study events in two…

The goal of object detection is to determine the class and location of objects in an image. This paper proposes a novel anchor-free, two-stage framework which first extracts a number of object proposals by finding potential corner keypoint…

计算机视觉与模式识别 · 计算机科学 2020-07-29 Kaiwen Duan , Lingxi Xie , Honggang Qi , Song Bai , Qingming Huang , Qi Tian

Learning accurate and parsimonious point cloud representations of scene surfaces from scratch remains a challenge in 3D representation learning. Existing point-based methods often suffer from the vanishing gradient problem or require a…

计算机视觉与模式识别 · 计算机科学 2023-12-08 Yanshu Zhang , Shichong Peng , Alireza Moazeni , Ke Li