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相关论文: Fisher Information Field: an Efficient and Differe…

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Although data diffusion embeddings are ubiquitous in unsupervised learning and have proven to be a viable technique for uncovering the underlying intrinsic geometry of data, diffusion embeddings are inherently limited due to their discrete…

计算机视觉与模式识别 · 计算机科学 2023-06-13 Oluwadamilola Fasina , Guillaume Huguet , Alexander Tong , Yanlei Zhang , Guy Wolf , Maximilian Nickel , Ian Adelstein , Smita Krishnaswamy

Fast and accurate path planning is important for ground robots to achieve safe and efficient autonomous navigation in unstructured outdoor environments. However, most existing methods exploiting either 2D or 2.5D maps struggle to balance…

机器人学 · 计算机科学 2023-03-10 Jiayang Liu , Xieyuanli Chen , Junhao Xiao , Sichao Lin , Zhiqiang Zheng , Huimin Lu

This paper focuses on designing a consistent and efficient filter for map-based visual-inertial localization. First, we propose a new Lie group with its algebra, based on which a novel invariant extended Kalman filter (invariant EKF) is…

机器人学 · 计算机科学 2022-04-27 Zhuqing Zhang , Yang Song , Shoudong Huang , Rong Xiong , Yue Wang

The Fisher information matrix (FIM) is a key quantity in statistics as it is required for example for evaluating asymptotic precisions of parameter estimates, for computing test statistics or asymptotic distributions in statistical testing,…

统计方法学 · 统计学 2023-02-07 Maud Delattre , Estelle Kuhn

Modern robotic systems are required to operate in challenging environments, which demand reliable localization under challenging conditions. LiDAR-based localization methods, such as the Iterative Closest Point (ICP) algorithm, can suffer…

机器人学 · 计算机科学 2024-02-20 Turcan Tuna , Julian Nubert , Yoshua Nava , Shehryar Khattak , Marco Hutter

We introduce a method for real-time navigation and tracking with differentiably rendered world models. Learning models for control has led to impressive results in robotics and computer games, but this success has yet to be extended to…

机器学习 · 计算机科学 2022-01-26 Baris Kayalibay , Atanas Mirchev , Patrick van der Smagt , Justin Bayer

Robust localization is the cornerstone of autonomous driving, especially in challenging urban environments where GPS signals suffer from multipath errors. Traditional localization approaches rely on high-definition (HD) maps, which consist…

计算机视觉与模式识别 · 计算机科学 2024-07-12 Hang Wu , Zhenghao Zhang , Siyuan Lin , Xiangru Mu , Qiang Zhao , Ming Yang , Tong Qin

Information gathering algorithms play a key role in unlocking the potential of robots for efficient data collection in a wide range of applications. However, most existing strategies neglect the fundamental problem of the robot pose…

机器人学 · 计算机科学 2019-12-17 Marija Popovic , Teresa Vidal-Calleja , Jen Jen Chung , Juan Nieto , Roland Siegwart

The overarching goals in image-based localization are scale, robustness and speed. In recent years, approaches based on local features and sparse 3D point-cloud models have both dominated the benchmarks and seen successful realworld…

计算机视觉与模式识别 · 计算机科学 2019-07-02 Simon Lynen , Bernhard Zeisl , Dror Aiger , Michael Bosse , Joel Hesch , Marc Pollefeys , Roland Siegwart , Torsten Sattler

This paper investigates the use of depth images as localisation sensors for 3D map building. The localisation information is derived from the 3D data thanks to the ICP (Iterative Closest Point) algorithm. The covariance of the ICP, and thus…

机器人学 · 计算机科学 2012-05-17 Thibault Hervier , Silvère Bonnabel , François Goulette

Visual navigation has been widely used for state estimation of micro aerial vehicles (MAVs). For stable visual navigation, MAVs should generate perception-aware paths which guarantee enough visible landmarks. Many previous works on…

机器人学 · 计算机科学 2021-07-20 Dabin Kim , Gyeong Chan Kim , Youngseok Jang , H. Jin Kim

Current massive datasets demand light-weight access for analysis. Discrete hashing methods are thus beneficial because they map high-dimensional data to compact binary codes that are efficient to store and process, while preserving semantic…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Yunqiang Li , Wenjie Pei , Yufei zha , Jan van Gemert

Expected Fisher information can be found a priori and as a result its inverse is the primary variance approximation used in the design of experiments. This is in contrast to the common claim that the inverse of observed Fisher information…

统计方法学 · 统计学 2022-08-04 Adam Lane

Accurate localization in diverse environments is a fundamental challenge in computer vision and robotics. The task involves determining a sensor's precise position and orientation, typically a camera, within a given space. Traditional…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Luca Di Giammarino , Boyang Sun , Giorgio Grisetti , Marc Pollefeys , Hermann Blum , Daniel Barath

Tasks such as autonomous navigation, 3D reconstruction, and object recognition near the water surfaces are crucial in marine robotics applications. However, challenges arise due to dynamic disturbances, e.g., light reflections and…

计算机视觉与模式识别 · 计算机科学 2025-04-16 Jiayi Wu , Xiaomin Lin , Shahriar Negahdaripour , Cornelia Fermüller , Yiannis Aloimonos

In this paper, we present a new approach for improving 3D point and line mapping regression for camera re-localization. Previous methods typically rely on feature matching (FM) with stored descriptors or use a single network to encode both…

计算机视觉与模式识别 · 计算机科学 2025-03-03 Bach-Thuan Bui , Huy-Hoang Bui , Yasuyuki Fujii , Dinh-Tuan Tran , Joo-Ho Lee

Robust visual localization for urban vehicles remains challenging and unsolved. The limitation of computation efficiency and memory size has made it harder for large-scale applications. Since semantic information serves as a stable and…

机器人学 · 计算机科学 2020-10-14 Ziwei Liao , Jieqi Shi , Xianyu Qi , Xiaoyu Zhang , Wei Wang , Yijia He , Ran Wei , Xiao Liu

In Geographical Information search, map visualization can challenge the user because results can consist of a large set of heterogeneous items, increasing visual complexity. We propose a novel visualization model to address this issue. Our…

In this study, we propose a novel visual localization approach to accurately estimate six degrees of freedom (6-DoF) poses of the robot within the 3D LiDAR map based on visual data from an RGB camera. The 3D map is obtained utilizing an…

In object recognition, Fisher vector (FV) representation is one of the state-of-art image representations ways at the expense of dense, high dimensional features and increased computation time. A simplification of FV is attractive, so we…

计算机视觉与模式识别 · 计算机科学 2014-10-16 Xiankai Lu , Zheng Fang , Tao Xu , Haiting Zhang , Hongya Tuo