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The detection of multiple extended targets in complex environments using high-resolution automotive radar is considered. A data-driven approach is proposed where unlabeled synchronized lidar data is used as ground truth to train a neural…

Signal Processing · Electrical Eng. & Systems 2024-11-14 Ignacio Roldan , Andras Palffy , Julian F. P. Kooij , Dariu M. Gavrila , Francesco Fioranelli , Alexander Yarovoy

Field robotics in perceptually-challenging environments require fast and accurate state estimation, but modern LiDAR sensors quickly overwhelm current odometry algorithms. To this end, this paper presents a lightweight frontend LiDAR…

Robotics · Computer Science 2022-01-10 Kenny Chen , Brett T. Lopez , Ali-akbar Agha-mohammadi , Ankur Mehta

Open-set image recognition (OSR) aims to both classify known-class samples and identify unknown-class samples in the testing set, which supports robust classifiers in many realistic applications, such as autonomous driving, medical…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Jiayin Sun , Qiulei Dong

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…

Computer Vision and Pattern Recognition · Computer Science 2018-10-03 Shing Yan Loo , Ali Jahani Amiri , Syamsiah Mashohor , Sai Hong Tang , Hong Zhang

Off-road robotics have traditionally utilized lidar for local navigation due to its accuracy and high resolution. However, the limitations of lidar, such as reduced performance in harsh environmental conditions and limited range, have…

Robotics · Computer Science 2023-10-27 Timothy Overbye , Srikanth Saripalli

With the rapid advancements of sensor technology and deep learning, autonomous driving systems are providing safe and efficient access to intelligent vehicles as well as intelligent transportation. Among these equipped sensors, the radar…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Shanliang Yao , Runwei Guan , Zitian Peng , Chenhang Xu , Yilu Shi , Weiping Ding , Eng Gee Lim , Yong Yue , Hyungjoon Seo , Ka Lok Man , Jieming Ma , Xiaohui Zhu , Yutao Yue

Radar-based road user detection is an important topic in the context of autonomous driving applications. The resolution of conventional automotive radar sensors results in a sparse data representation which is tough to refine during…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Nicolas Scheiner , Ole Schumann , Florian Kraus , Nils Appenrodt , Jürgen Dickmann , Bernhard Sick

Out-of-distribution (OOD) detection has recently received special attention due to its critical role in safely deploying modern deep learning (DL) architectures. This work proposes a reconstruction-based multi-class OOD detector that…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Sabri Mustafa Kahya , Muhammet Sami Yavuz , Eckehard Steinbach

The disparity information provided by stereo cameras has enabled advanced driver assistance systems to estimate road area more accurately and effectively. In this paper, a novel disparity transformation algorithm is proposed to extract road…

Computer Vision and Pattern Recognition · Computer Science 2018-08-09 Rui Fan , Mohammud Junaid Bocus , Naim Dahnoun

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…

Robotics · Computer Science 2024-03-11 Morten Nissov , Nikhil Khedekar , Kostas Alexis

We present UNRIO, an uncertainty-aware radar-inertial odometry system that estimates ego-velocity directly from raw mmWave radar IQ signals rather than processed point clouds. Existing radar-inertial odometry methods rely on handcrafted…

Robotics · Computer Science 2026-04-16 Jui-Te Huang , Tinashu Huang , Anthony Rowe , Michael Kaess

A transmitted, unknown radar signal is observed at the receiver through more than one path in additive noise. The aim is to recover the waveform of the intercepted signal and to simultaneously estimate the direction of arrival (DOA). We…

Statistics Theory · Mathematics 2011-03-30 Tabea Rebafka , Céline Lévy-Leduc , Maurice Charbit

With their robustness to adverse weather conditions and ability to measure speeds, radar sensors have been part of the automotive landscape for more than two decades. Recent progress toward High Definition (HD) Imaging radar has driven the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-14 Julien Rebut , Arthur Ouaknine , Waqas Malik , Patrick Pérez

Most LiDAR odometry algorithms estimate the transformation between two consecutive frames by estimating the rotation and translation in an intervening fashion. In this paper, we propose our Decoupled LiDAR Odometry (DeLiO), which -- for the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-30 Queens Maria Thomas , Oliver Wasenmüller , Didier Stricker

Conventional SLAM systems using visual or LiDAR data often struggle in poor lighting and severe weather. Although 4D radar is suited for such environments, its sparse and noisy point clouds hinder accurate odometry estimation, while the…

Robotics · Computer Science 2025-12-11 Zhiheng Li , Weihua Wang , Qiang Shen , Yichen Zhao , Zheng Fang

Distributed radar sensors enable robust human activity recognition. However, scaling the number of coordinated nodes introduces challenges in feature extraction from large datasets, and transparent data fusion. We propose an end-to-end…

Signal Processing · Electrical Eng. & Systems 2026-01-07 Mina Shahbazifar , Zolfa Zeinalpour-Yazdi , Matthias Hollick , Arash Asadi , Vahid Jamali

Depth estimation is a fundamental component of spatial perception for autonomous driving and other unmanned systems operating in open urban environments. Existing depth datasets such as KITTI, nuScenes, and DDAD have advanced the field but…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Xianda Guo , Ruijun Zhang , Yiqun Duan , Ruilin Wang , Matteo Poggi , Keyuan Zhou , Wenzhao Zheng , Wenke Huang , Gangwei Xu , Yanlun Peng , Yuan Si , Qin Zou

Pose estimation and map building are central ingredients of autonomous robots and typically rely on the registration of sensor data. In this paper, we investigate a new metric for registering images that builds upon on the idea of the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-09 Jan Quenzel , Radu Alexandru Rosu , Thomas Läbe , Cyrill Stachniss , Sven Behnke

This paper presents a new detector for filtering noise from true detections in radar data, which improves the state of the art in radar odometry. Scanning Frequency-Modulated Continuous Wave (FMCW) radars can be useful for localization and…

The emerging Internet of Things (IoT) applications, such as driverless cars, have a growing demand for high-precision positioning and navigation. Nowadays, LiDAR inertial odometry becomes increasingly prevalent in robotics and autonomous…

Robotics · Computer Science 2025-03-10 Chengwei Zhao , Kun Hu , Jie Xu , Lijun Zhao , Baiwen Han , Kaidi Wu , Maoshan Tian , Shenghai Yuan