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Event-based cameras are biologically inspired sensors that output events, i.e., asynchronous pixel-wise brightness changes in the scene. Their high dynamic range and temporal resolution of a microsecond makes them more reliable than…

机器人学 · 计算机科学 2021-07-13 Antea Hadviger , Igor Cvišić , Ivan Marković , Sacha Vražić , Ivan Petrović

The event camera, renowned for its high dynamic range and exceptional temporal resolution, is recognized as an important sensor for visual odometry. However, the inherent noise in event streams complicates the selection of high-quality map…

机器人学 · 计算机科学 2025-07-01 Zhaoxing Zhang , Xiaoxiang Wang , Chengliang Zhang , Yangyang Guo , Zikang Yuan , Xin Yang

Optical flow estimation remains challenging due to untextured areas, motion boundaries, occlusions, and more. Thus, the estimated flow is not equally reliable across the image. To that end, post-hoc confidence measures have been introduced…

计算机视觉与模式识别 · 计算机科学 2017-08-23 Anne S. Wannenwetsch , Margret Keuper , Stefan Roth

Omnidirectional 360{\deg} images have found many promising and exciting applications in computer vision, robotics and other fields, thanks to their increasing affordability, portability and their 360{\deg} field of view. The most common…

计算机视觉与模式识别 · 计算机科学 2022-02-01 Mingze Yuan , Christian Richardt

The monocular visual-inertial odometry (VIO) based on the direct method can leverage all available pixels in the image to simultaneously estimate the camera motion and reconstruct the denser map of the scene in real time. However, the…

机器人学 · 计算机科学 2023-06-13 Bo Xu , Xin Li , Jingrong Wang , Chau Yuen , Jiancheng Li

Odometry estimation is crucial for every autonomous system requiring navigation in an unknown environment. In modern mobile robots, 3D LiDAR-inertial systems are often used for this task. By fusing LiDAR scans and IMU measurements, these…

机器人学 · 计算机科学 2024-05-09 Yibin Wu , Tiziano Guadagnino , Louis Wiesmann , Lasse Klingbeil , Cyrill Stachniss , Heiner Kuhlmann

Visual Odometry (VO) and SLAM are fundamental components for spatial perception in mobile robots. Despite enormous progress in the field, current VO/SLAM systems are limited by their sensors' capability. Event cameras are novel visual…

机器人学 · 计算机科学 2025-05-28 Suman Ghosh , Valentina Cavinato , Guillermo Gallego

State-of-the-art neural network models for optical flow estimation require a dense correlation volume at high resolutions for representing per-pixel displacement. Although the dense correlation volume is informative for accurate estimation,…

计算机视觉与模式识别 · 计算机科学 2021-04-07 Shihao Jiang , Yao Lu , Hongdong Li , Richard Hartley

Efficiency and robustness are the essential criteria for the visual-inertial odometry (VIO) system. To process massive visual data, the high cost on CPU resources and computation latency limits VIO's possibility in integration with other…

机器人学 · 计算机科学 2021-09-27 Yao He , Huai Yu , Wen Yang , Sebastian Scherer

Monocular visual odometry approaches that purely rely on geometric cues are prone to scale drift and require sufficient motion parallax in successive frames for motion estimation and 3D reconstruction. In this paper, we propose to leverage…

计算机视觉与模式识别 · 计算机科学 2018-07-26 Nan Yang , Rui Wang , Jörg Stückler , Daniel Cremers

In unstructured outdoor environments, robotics requires accurate and efficient odometry with low computational time. Existing low-bias LiDAR odometry methods are often computationally expensive. To address this problem, we present a…

In the field of Simultaneous Localization and Mapping (SLAM), researchers have always pursued better performance in terms of accuracy and time cost. Traditional algorithms typically rely on fundamental geometric elements in images to…

机器人学 · 计算机科学 2024-03-05 Zhang Zhihe

Enabling autonomous robots to operate robustly in challenging environments is necessary in a future with increased autonomy. For many autonomous systems, estimation and odometry remains a single point of failure, from which it can often be…

机器人学 · 计算机科学 2024-03-11 Morten Nissov , Nikhil Khedekar , Kostas Alexis

We present VI-DSO, a novel approach for visual-inertial odometry, which jointly estimates camera poses and sparse scene geometry by minimizing photometric and IMU measurement errors in a combined energy functional. The visual part of the…

计算机视觉与模式识别 · 计算机科学 2020-06-19 Lukas von Stumberg , Vladyslav Usenko , Daniel Cremers

In recent years there have been excellent results in Visual-Inertial Odometry techniques, which aim to compute the incremental motion of the sensor with high accuracy and robustness. However these approaches lack the capability to close…

机器人学 · 计算机科学 2017-01-18 Raul Mur-Artal , Juan D. Tardos

Information inside visual and LiDAR data is well complementary derived from the fine-grained texture of images and massive geometric information in point clouds. However, it remains challenging to explore effective visual-LiDAR fusion,…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Jiuming Liu , Dong Zhuo , Zhiheng Feng , Siting Zhu , Chensheng Peng , Zhe Liu , Hesheng Wang

LiDAR odometry (LO) describes the task of finding an alignment of subsequent LiDAR point clouds. This alignment can be used to estimate the motion of the platform where the LiDAR sensor is mounted on. Currently, on the well-known KITTI…

计算机视觉与模式识别 · 计算机科学 2021-06-15 Philipp Adis , Nicolas Horst , Mathias Wien

Inspired by frame-based methods, state-of-the-art event-based optical flow networks rely on the explicit construction of correlation volumes, which are expensive to compute and store, rendering them unsuitable for robotic applications with…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Yilun Wu , Federico Paredes-Vallés , Guido C. H. E. de Croon

We introduce an ordinary differential equation (ODE) based deep generative method for learning conditional distributions, named Conditional F\"ollmer Flow. Starting from a standard Gaussian distribution, the proposed flow could approximate…

机器学习 · 统计学 2025-10-14 Jinyuan Chang , Zhao Ding , Yuling Jiao , Ruoxuan Li , Jerry Zhijian Yang

Extensive research efforts have been dedicated to deep learning based odometry. Nonetheless, few efforts are made on the unsupervised deep lidar odometry. In this paper, we design a novel framework for unsupervised lidar odometry with the…

计算机视觉与模式识别 · 计算机科学 2021-09-06 Yiming Tu , Jin Xie