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LiDAR-based place recognition serves as a crucial enabler for long-term autonomy in robotics and autonomous driving systems. Yet, prevailing methodologies relying on handcrafted feature extraction face dual challenges: (1) Inconsistent…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Xiaohui Jiang , Haijiang Zhu , Chade Li , Fulin Tang , Ning An

The perception of moving objects is crucial for autonomous robots performing collision avoidance in dynamic environments. LiDARs and cameras tremendously enhance scene interpretation but do not provide direct motion information and face…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Matthias Zeller , Vardeep S. Sandhu , Benedikt Mersch , Jens Behley , Michael Heidingsfeld , Cyrill Stachniss

Indoor scene modification has emerged as a prominent area within computer vision, particularly for its applications in Augmented Reality (AR) and Virtual Reality (VR). Traditional methods often rely on pre-existing object databases and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Yiyang Luo , Ke Lin , Chao Gu

Diffusion models (DMs) excel in photo-realistic image synthesis, but their adaptation to LiDAR scene generation poses a substantial hurdle. This is primarily because DMs operating in the point space struggle to preserve the curve-like…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Haoxi Ran , Vitor Guizilini , Yue Wang

Most current neural networks for reconstructing surfaces from point clouds ignore sensor poses and only operate on raw point locations. Sensor visibility, however, holds meaningful information regarding space occupancy and surface…

Computer Vision and Pattern Recognition · Computer Science 2022-02-07 Raphael Sulzer , Loic Landrieu , Alexandre Boulch , Renaud Marlet , Bruno Vallet

Given the rapid development of 3D scanners, point clouds are becoming popular in AI-driven machines. However, point cloud data is inherently sparse and irregular, causing significant difficulties for machine perception. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Shi Qiu , Saeed Anwar , Nick Barnes

High-definition 3D city maps enable city planning and change detection, which is essential for municipal compliance, map maintenance, and asset monitoring, including both built structures and urban greenery. Conventional Digital Surface…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Hezam Albagami , Haitian Wang , Xinyu Wang , Muhammad Ibrahim , Zainy M. Malakan , Abdullah M. Alqamdi , Mohammed H. Alghamdi , Ajmal Mian

The integration of Light Detection and Ranging (LiDAR) and Internet of Things (IoT) technologies offers transformative opportunities for public health informatics in urban safety and pedestrian well-being. This paper proposes a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Nawfal Guefrachi , Jian Shi , Hakim Ghazzai , Ahmad Alsharoa

LiDAR-camera fusion enhances 3D panoptic segmentation by leveraging camera images to complement sparse LiDAR scans, but it also introduces a critical failure mode. Under adverse conditions, degradation or failure of the camera sensor can…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Rohit Mohan , Florian Drews , Yakov Miron , Daniele Cattaneo , Abhinav Valada

Reconstruction of geometric structures from images using supervised learning suffers from limited available amount of accurate data. One type of such data is accurate real-world RGB-D images. A major challenge in acquiring such ground truth…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Noam Rotstein , Amit Bracha , Ron Kimmel

Fully autonomous driving systems require fast detection and recognition of sensitive objects in the environment. In this context, intelligent vehicles should share their sensor data with computing platforms and/or other vehicles, to detect…

Networking and Internet Architecture · Computer Science 2021-04-27 Valentina Rossi , Paolo Testolina , Marco Giordani , Michele Zorzi

Large-scale astronomical surveys can capture numerous images of celestial objects, including galaxies and nebulae. Analysing and processing these images can reveal intricate internal structures of these objects, allowing researchers to…

Instrumentation and Methods for Astrophysics · Physics 2023-11-02 Peng Jia , Jiameng Lv , Runyu Ning , Yu Song , Nan Li , Kaifan Ji , Chenzhou Cui , Shanshan Li

In this paper, we explore the capabilities of multimodal inputs to 3D Gaussian Splatting (3DGS) based Radiance Field Rendering. We present LiDAR-3DGS, a novel method of reinforcing 3DGS inputs with LiDAR generated point clouds to…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Hansol Lim , Hanbeom Chang , Jongseong Brad Choi , Chul Min Yeum

Conventional tracking paradigm takes in instantaneous measurements such as range and bearing, and produces object tracks across time. In applications such as autonomous driving, lidar measurements in the form of point clouds are usually…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Lingji Chen

This paper explores the use of an entropy-based technique for point cloud reconstruction with the goal of calibrating a lidar to a sensor capable of providing egomotion information. We extend recent work in this area to the problem of…

Robotics · Computer Science 2018-07-17 Jacob Lambert , Lee Clement , Matthew Giamou , Jonathan Kelly

Large driving datasets are a key component in the current development and safeguarding of automated driving functions. Various methods can be used to collect such driving data records. In addition to the use of sensor equipped research…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Laurent Kloeker , Christian Geller , Amarin Kloeker , Lutz Eckstein

In this paper, we aim at addressing two critical issues in the 3D detection task, including the exploitation of multiple sensors~(namely LiDAR point cloud and camera image), as well as the inconsistency between the localization and…

Computer Vision and Pattern Recognition · Computer Science 2020-07-20 Tengteng Huang , Zhe Liu , Xiwu Chen , Xiang Bai

Camera-based 3D object detection and tracking are central to autonomous driving, yet precise 3D object localization remains fundamentally constrained by depth ambiguity when no expensive, depth-rich online LiDAR is available at inference.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Markus Käppeler , Özgün Çiçek , Yakov Miron , Abhinav Valada

Recent developments in the field of deep learning for 3D data have demonstrated promising potential for end-to-end learning directly from point clouds. However, many real-world point clouds contain a large class im-balance due to the…

Computer Vision and Pattern Recognition · Computer Science 2019-06-19 David Griffiths , Jan Boehm

Sensor simulation is a key component for testing the performance of self-driving vehicles and for data augmentation to better train perception systems. Typical approaches rely on artists to create both 3D assets and their animations to…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Ze Yang , Siva Manivasagam , Ming Liang , Bin Yang , Wei-Chiu Ma , Raquel Urtasun