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Large-scale multi-session LiDAR mapping is essential for a wide range of applications, including surveying, autonomous driving, crowdsourced mapping, and multi-agent navigation. However, existing approaches often struggle with data…

Robotics · Computer Science 2024-08-08 Xiangcheng Hu , Jin Wu , Jianhao Jiao , Binqian Jiang , Wei Zhang , Wenshuo Wang , Ping Tan

Localization and Mapping is an essential component to enable Autonomous Vehicles navigation, and requires an accuracy exceeding that of commercial GPS-based systems. Current odometry and mapping algorithms are able to provide this accurate…

Computer Vision and Pattern Recognition · Computer Science 2019-10-09 Victor Vaquero , Kai Fischer , Francesc Moreno-Noguer , Alberto Sanfeliu , Stefan Milz

Multiple-Input Multiple-Output (MIMO) systems are essential for wireless communications. Sinceclassical algorithms for symbol detection in MIMO setups require large computational resourcesor provide poor results, data-driven algorithms are…

Information Theory · Computer Science 2023-03-15 Alexander Fuchs , Christian Knoll , Nima N. Moghadam , Alexey Pak Jinliang Huang , Erik Leitinger , Franz Pernkopf

An automated vehicle operating in an urban environment must be able to perceive and recognise object/obstacles in a three-dimensional world while navigating in a constantly changing environment. In order to plan and execute accurate…

Computer Vision and Pattern Recognition · Computer Science 2020-07-13 Julie Stephany Berrio , Mao Shan , Stewart Worrall , Eduardo Nebot

This paper reports on a dynamic semantic mapping framework that incorporates 3D scene flow measurements into a closed-form Bayesian inference model. Existence of dynamic objects in the environment can cause artifacts and traces in current…

Deep learning based LiDAR odometry (LO) estimation attracts increasing research interests in the field of autonomous driving and robotics. Existing works feed consecutive LiDAR frames into neural networks as point clouds and match pairs in…

Computer Vision and Pattern Recognition · Computer Science 2020-09-02 Ce Zheng , Yecheng Lyu , Ming Li , Ziming Zhang

Accurate mapping of large-scale environments is an essential building block of most outdoor autonomous systems. Challenges of traditional mapping methods include the balance between memory consumption and mapping accuracy. This paper…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Xingguang Zhong , Yue Pan , Jens Behley , Cyrill Stachniss

A robot operating in a household makes observations of multiple objects as it moves around over the course of days or weeks. The objects may be moved by inhabitants, but not completely at random. The robot may be called upon later to…

Machine Learning · Computer Science 2022-08-02 Yilun Du , Tomas Lozano-Perez , Leslie Kaelbling

In this work, we investigate the use of OpenStreetMap data for semantic labeling of Earth Observation images. Deep neural networks have been used in the past for remote sensing data classification from various sensors, including…

Computer Vision and Pattern Recognition · Computer Science 2017-05-18 Nicolas Audebert , Bertrand Le Saux , Sébastien Lefèvre

This paper presents a method to reconstruct dense semantic trajectory stream of human interactions in 3D from synchronized multiple videos. The interactions inherently introduce self-occlusion and illumination/appearance/shape changes,…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Jae Shin Yoon , Ziwei Li , Hyun Soo Park

This work develops a distributed optimization algorithm for multi-robot 3-D semantic mapping using streaming range and visual observations and single-hop communication. Our approach relies on gradient-based optimization of the observation…

Robotics · Computer Science 2024-02-15 Arash Asgharivaskasi , Nikolay Atanasov

Enabling bi-directional retrieval of images and texts is important for understanding the correspondence between vision and language. Existing methods leverage the attention mechanism to explore such correspondence in a fine-grained manner.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Hui Chen , Guiguang Ding , Xudong Liu , Zijia Lin , Ji Liu , Jungong Han

We present a real-time semantic mapping approach for mobile vision systems with a 2D to 3D object detection pipeline and rapid data association for generated landmarks. Besides the semantic map enrichment the associated detections are…

Robotics · Computer Science 2022-03-25 Thorsten Hempel , Ayoub Al-Hamadi

Steering estimation is a critical task in autonomous driving, traditionally relying on 2D image-based models. In this work, we explore the advantages of incorporating 3D spatial information through hybrid architectures that combine 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Fouad Makiyeh , Huy-Dung Nguyen , Patrick Chareyre , Ramin Hasani , Marc Blanchon , Daniela Rus

While 3D reconstruction is a well-established and widely explored research topic, semantic 3D reconstruction has only recently witnessed an increasing share of attention from the Computer Vision community. Semantic annotations allow in fact…

Computer Vision and Pattern Recognition · Computer Science 2017-08-28 Andrea Romanoni , Marco Ciccone , Francesco Visin , Matteo Matteucci

This paper addresses the problem of single image depth estimation (SIDE), focusing on improving the quality of deep neural network predictions. In a supervised learning scenario, the quality of predictions is intrinsically related to the…

Computer Vision and Pattern Recognition · Computer Science 2020-02-10 Nícolas Rosa , Vitor Guizilini , Valdir Grassi

LiDAR is used in autonomous driving to provide 3D spatial information and enable accurate perception in off-road environments, aiding in obstacle detection, mapping, and path planning. Learning-based LiDAR semantic segmentation utilizes…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Kasi Viswanath , Peng Jiang , Sujit PB , Srikanth Saripalli

We present a unified framework capable of solving a broad range of 3D tasks. Our approach features a stateful recurrent model that continuously updates its state representation with each new observation. Given a stream of images, this…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Qianqian Wang , Yifei Zhang , Aleksander Holynski , Alexei A. Efros , Angjoo Kanazawa

Mix-based augmentation has been proven fundamental to the generalization of deep vision models. However, current augmentations only mix samples at the current data batch during training, which ignores the possible knowledge accumulated in…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Lingfeng Yang , Xiang Li , Borui Zhao , Renjie Song , Jian Yang

This paper presents a fully unsupervised deep change detection approach for mobile robots with 3D LiDAR. In unstructured environments, it is infeasible to define a closed set of semantic classes. Instead, semantic segmentation is…

Robotics · Computer Science 2024-05-01 Alexander Krawciw , Jordy Sehn , Timothy D. Barfoot