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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…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Hang Wu , Zhenghao Zhang , Siyuan Lin , Xiangru Mu , Qiang Zhao , Ming Yang , Tong Qin

Place recognition is a challenging but crucial task in robotics. Current description-based methods may be limited by representation capabilities, while pairwise similarity-based methods require exhaustive searches, which is time-consuming.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Chencan Fu , Lin Li , Jianbiao Mei , Yukai Ma , Linpeng Peng , Xiangrui Zhao , Yong Liu

Human pose estimation in complicated situations has always been a challenging task. Many Transformer-based pose networks have been proposed recently, achieving encouraging progress in improving performance. However, the remarkable…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Chengpeng Wu , Guangxing Tan , Chunyu Li

This paper addresses the problem of estimating the 3-DoF camera pose for a ground-level image with respect to a satellite image that encompasses the local surroundings. We propose a novel end-to-end approach that leverages the learning of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Zhenbo Song , Xianghui Ze , Jianfeng Lu , Yujiao Shi

Accurate and reliable ego-localization is critical for autonomous driving. In this paper, we present EgoVM, an end-to-end localization network that achieves comparable localization accuracy to prior state-of-the-art methods, but uses…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Yuzhe He , Shuang Liang , Xiaofei Rui , Chengying Cai , Guowei Wan

In this work, we research and evaluate multiple pose-graph fusion strategies for vehicle localization. We focus on fusing a single absolute localization system, i.e. automotive-grade Global Navigation Satellite System (GNSS) at 1 Hertz,…

Signal Processing · Electrical Eng. & Systems 2018-03-22 Anweshan Das , Gijs Dubbelman

Visible light positioning (VLP) technology is a promising technique as it can provide high accuracy positioning based on the existing lighting infrastructure. However, existing approaches often require dense lighting distributions.…

Robotics · Computer Science 2021-09-06 Weipeng Guan , Patrick Yue

High-definition (HD) maps play a crucial role in autonomous driving systems. Recent methods have attempted to construct HD maps in real-time using vehicle onboard sensors. Due to the inherent limitations of onboard sensors, which include…

Computer Vision and Pattern Recognition · Computer Science 2024-01-31 Wenjie Gao , Jiawei Fu , Yanqing Shen , Haodong Jing , Shitao Chen , Nanning Zheng

With the rapid advancement of autonomous driving technology, there is a growing need for enhanced safety and efficiency in the automatic environmental perception of vehicles during their operation. In modern vehicle setups, cameras and…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Di Wu , Feng Yang , Benlian Xu , Pan Liao , Bo Liu

Imitation learning for end-to-end driving trains policies only on expert demonstrations. Once deployed in a closed loop, such policies lack recovery data: small mistakes cannot be corrected and quickly compound into failures. A promising…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Lan Feng , Yang Gao , Eloi Zablocki , Quanyi Li , Wuyang Li , Sichao Liu , Matthieu Cord , Alexandre Alahi

Combining multiple complementary techniques together has long been regarded as a way to improve performance. In visual localization, multi-sensor fusion, multi-process fusion of a single sensing modality, and even combinations of different…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Stephen Hausler , Michael Milford

An accurate understanding of a self-driving vehicle's surrounding environment is crucial for its navigation system. To enhance the effectiveness of existing algorithms and facilitate further research, it is essential to provide…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Abtin Mahyar , Hossein Motamednia , Dara Rahmati

In this paper, we propose VLASE, a framework to use semantic edge features from images to achieve on-road localization. Semantic edge features denote edge contours that separate pairs of distinct objects such as building-sky, road-…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Xin Yu , Sagar Chaturvedi , Chen Feng , Yuichi Taguchi , Teng-Yok Lee , Clinton Fernandes , Srikumar Ramalingam

Autonomous driving requires a comprehensive understanding of the surrounding environment for reliable trajectory planning. Previous works rely on dense rasterized scene representation (e.g., agent occupancy and semantic map) to perform…

We propose a novel learning-based formulation for visual localization of vehicles that can operate in real-time in city-scale environments. Visual localization algorithms determine the position and orientation from which an image has been…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Arthur Moreau , Thomas Gilles , Nathan Piasco , Dzmitry Tsishkou , Bogdan Stanciulescu , Arnaud de La Fortelle

Vision-based localization for autonomous driving has been of great interest among researchers. When a pre-built 3D map is not available, the techniques of visual simultaneous localization and mapping (SLAM) are typically adopted. Due to…

Robotics · Computer Science 2024-04-16 Yanhao Zhang , Yujiao Shi , Shan Wang , Ankit Vora , Akhil Perincherry , Yongbo Chen , Hongdong Li

Pose graph optimization is a non-convex optimization problem encountered in many areas of robotics perception. Its convergence to an accurate solution is conditioned by two factors: the non-linearity of the cost function in use and the…

Robotics · Computer Science 2022-07-05 Tiziano Guadagnino , Luca Di Giammarino , Giorgio Grisetti

In this paper we propose a framework for integrating map-based relocalization into online direct visual odometry. To achieve map-based relocalization for direct methods, we integrate image features into Direct Sparse Odometry (DSO) and rely…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Mariia Gladkova , Rui Wang , Niclas Zeller , Daniel Cremers

In recent years, prior maps have become a mainstream tool in autonomous navigation. However, commonly available prior maps are still tailored to control-and-decision tasks, and the use of these maps for localization remains largely…

Robotics · Computer Science 2024-07-30 Waqas Ali , Patric Jensfelt , Thien-Minh Nguyen

Here we propose the Reweighted Autoencoded Variational Bayes for Enhanced Sampling (RAVE) method, a new iterative scheme that uses the deep learning framework of variational autoencoders to enhance sampling in molecular simulations. RAVE…

Chemical Physics · Physics 2018-02-13 Joao Marcelo Lamim Ribeiro , Pablo Bravo Collado , Yihang Wang , Pratyush Tiwary