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Many visual simultaneous localization and mapping (SLAM) systems have been shown to be accurate and robust, and have real-time performance capabilities on both indoor and ground datasets. However, these methods can be problematic when…

计算机视觉与模式识别 · 计算机科学 2020-07-30 Zongqian Zhan , Wenjie Jian , Yihui Li , Xin Wang , Yang Yue

In this paper, we present a tightly-coupled visual-inertial object-level multi-instance dynamic SLAM system. Even in extremely dynamic scenes, it can robustly optimise for the camera pose, velocity, IMU biases and build a dense 3D…

机器人学 · 计算机科学 2022-08-09 Yifei Ren , Binbin Xu , Christopher L. Choi , Stefan Leutenegger

In this paper we tackle the problem of learning Structure-from-Motion (SfM) through the use of graph attention networks. SfM is a classic computer vision problem that is solved though iterative minimization of reprojection errors, referred…

计算机视觉与模式识别 · 计算机科学 2024-05-21 Lucas Brynte , José Pedro Iglesias , Carl Olsson , Fredrik Kahl

It is well known that visual SLAM systems based on dense matching are locally accurate but are also susceptible to long-term drift and map corruption. In contrast, feature matching methods can achieve greater long-term consistency but can…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Xingrui Yang , Yuhang Ming , Zhaopeng Cui , Andrew Calway

We address the task of estimating camera parameters from a set of images depicting a scene. Popular feature-based structure-from-motion (SfM) tools solve this task by incremental reconstruction: they repeat triangulation of sparse 3D points…

计算机视觉与模式识别 · 计算机科学 2024-07-29 Eric Brachmann , Jamie Wynn , Shuai Chen , Tommaso Cavallari , Áron Monszpart , Daniyar Turmukhambetov , Victor Adrian Prisacariu

Many monocular visual SLAM algorithms are derived from incremental structure-from-motion (SfM) methods. This work proposes a novel monocular SLAM method which integrates recent advances made in global SfM. In particular, we present two main…

计算机视觉与模式识别 · 计算机科学 2017-10-20 Chengzhou Tang , Oliver Wang , Ping Tan

In this work, we propose a simultaneous localization and mapping (SLAM) system using a monocular camera and Ultra-wideband (UWB) sensors. Our system, referred to as VRSLAM, is a multi-stage framework that leverages the strengths and…

机器人学 · 计算机科学 2023-03-21 Thien Hoang Nguyen , Shenghai Yuan , Lihua Xie

Visual Simultaneous Localization and Mapping (SLAM) plays a vital role in real-time localization for autonomous systems. However, traditional SLAM methods, which assume a static environment, often suffer from significant localization drift…

机器人学 · 计算机科学 2025-07-30 Haolan Zhang , Thanh Nguyen Canh , Chenghao Li , Nak Young Chong

In recent decades, visual simultaneous localization and mapping (vSLAM) has gained significant interest in both academia and industry. It estimates camera motion and reconstructs the environment concurrently using visual sensors on a moving…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Kunping Huang , Sen Zhang , Jing Zhang , Dacheng Tao

Running numerous experiments in simulation is a necessary step before deploying a control system on a real robot. In this paper we introduce a novel benchmark that is aimed at quantitatively evaluating the quality of vision-based…

计算机视觉与模式识别 · 计算机科学 2021-06-01 Andrey Bokovoy , Kirill Muravyev , Konstantin Yakovlev

In this paper we propose a proximal algorithm for minimizing an objective function of two block variables consisting of three terms: 1) a smooth function, 2) a nonsmooth function which is a composition between a strictly increasing,…

最优化与控制 · 数学 2022-09-15 Maryam Yashtini

We propose a novel visual SLAM method that integrates text objects tightly by treating them as semantic features via fully exploring their geometric and semantic prior. The text object is modeled as a texture-rich planar patch whose…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Boying Li , Danping Zou , Yuan Huang , Xinghan Niu , Ling Pei , Wenxian Yu

Camera motion estimation is a key technique for 3D scene reconstruction and Simultaneous localization and mapping (SLAM). To make it be feasibly achieved, previous works usually assume slow camera motions, which limits its usage in many…

计算机视觉与模式识别 · 计算机科学 2018-12-10 Zunjie Zhu , Feng Xu

Visual-inertial SLAM (VI-SLAM) requires a good initial estimation of the initial velocity, orientation with respect to gravity and gyroscope and accelerometer biases. In this paper we build on the initialization method proposed by…

机器人学 · 计算机科学 2019-08-29 Carlos Campos , J. M. M. Montiel , Juan D. Tardós

The line is a prevalent element in man-made environments, inherently encoding spatial structural information, thus making it a more robust choice for feature representation in practical applications. Despite its apparent advantages,…

计算机视觉与模式识别 · 计算机科学 2024-08-13 Yongcong Zhang , Bangyan Liao , Yifei Xue , Chen Lu , Peidong Liu , Yizhen Lao

Reliable feature correspondence between frames is a critical step in visual odometry (VO) and visual simultaneous localization and mapping (V-SLAM) algorithms. In comparison with existing VO and V-SLAM algorithms, semi-direct visual…

计算机视觉与模式识别 · 计算机科学 2018-10-03 Shing Yan Loo , Ali Jahani Amiri , Syamsiah Mashohor , Sai Hong Tang , Hong Zhang

LiDAR bundle adjustment (BA) is an effective approach to reduce the drifts in pose estimation from the front-end. Existing works on LiDAR BA usually rely on predefined geometric features for landmark representation. This reliance restricts…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Xingyu Ji , Shenghai Yuan , Jianping Li , Pengyu Yin , Haozhi Cao , Lihua Xie

This paper discusses the challenges of evaluating deblurring-methods quality and proposes a reduced-reference metric based on machine learning. Traditional quality-assessment metrics such as PSNR and SSIM are common for this task, but not…

计算机视觉与模式识别 · 计算机科学 2023-05-30 Nikita Alutis , Egor Chistov , Mikhail Dremin , Dmitriy Vatolin

Classical visual simultaneous localization and mapping (SLAM) algorithms usually assume the environment to be rigid. This assumption limits the applicability of those algorithms as they are unable to accurately estimate the camera poses and…

机器人学 · 计算机科学 2022-09-28 Mathieu Gonzalez , Eric Marchand , Amine Kacete , Jérôme Royan

Accurate 3D reconstruction from unstructured image collections is a key requirement in applications such as robotics, mapping, and scene understanding. While global Structure from Motion (SfM) techniques rely on full image connectivity and…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Muhammad Zeeshan , Umer Zaki , Syed Ahmed Pasha , Zaar Khizar