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Accurate vision-based speed estimation is much more cost-effective than traditional methods based on radar or LiDAR. However, it is also challenging due to the limitations of perspective projection on a discrete sensor, as well as the high…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Antonio Hernández Martínez , Iván García Daza , Carlos Fernández López , David Fernández Llorca

Despite all the challenges and limitations, vision-based vehicle speed detection is gaining research interest due to its great potential benefits such as cost reduction, and enhanced additional functions. As stated in a recent survey [1],…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Antonio Hernández Martínez , Javier Lorenzo Díaz , Iván García Daza , David Fernández Llorca

A considerable amount of research is concerned with the generation of realistic sensor data. LiDAR point clouds are generated by complex simulations or learned generative models. The generated data is usually exploited to enable or improve…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Larissa T. Triess , Christoph B. Rist , David Peter , J. Marius Zöllner

Creating large LiDAR datasets with pixel-level labeling poses significant challenges. While numerous data augmentation methods have been developed to reduce the reliance on manual labeling, these methods predominantly focus on static scenes…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Jiaxing Zhao , Peng Zheng , Rui Ma

Perception systems play a crucial role in autonomous driving, incorporating multiple sensors and corresponding computer vision algorithms. 3D LiDAR sensors are widely used to capture sparse point clouds of the vehicle's surroundings.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Helin Cao , Sven Behnke

LiDAR-based 3D object detection plays a crucial role in modern autonomous driving systems. LiDAR data often exhibit severe changes in properties across different observation ranges. In this paper, we explore cross-range adaptation for 3D…

Computer Vision and Pattern Recognition · Computer Science 2019-09-27 Ze Wang , Sihao Ding , Ying Li , Minming Zhao , Sohini Roychowdhury , Andreas Wallin , Guillermo Sapiro , Qiang Qiu

High-quality surface normal can help improve geometry estimation in problems faced by autonomous vehicles, such as collision avoidance and occlusion inference. While a considerable volume of literature focuses on densely scanned indoor…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Ancheng Lin , Jun Li , Yusheng Xiang , Wei Bian , Mukesh Prasad

Unsupervised change detection between airborne LiDAR data points, taken at separate times over the same location, can be difficult due to unmatching spatial support and noise from the acquisition system. Most current approaches to detect…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Marco Fiorucci , Peter Naylor , Makoto Yamada

Deep learning approaches have become the standard solution to many problems in computer vision and robotics, but obtaining sufficient training data in high enough quality is challenging, as human labor is error prone, time consuming, and…

Machine Learning · Computer Science 2021-06-16 Jan Blumenkamp , Andreas Baude , Tim Laue

Typical LiDAR-based 3D object detection models are trained in a supervised manner with real-world data collection, which is often imbalanced over classes (or long-tailed). To deal with it, augmenting minority-class examples by sampling…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Mincheol Chang , Siyeong Lee , Jinkyu Kim , Namil Kim

Efforts to connect LiDAR data with text, such as LidarCLIP, have primarily focused on embedding 3D point clouds into CLIP text-image space. However, these approaches rely on 3D point clouds, which present challenges in encoding efficiency…

Computer Vision and Pattern Recognition · Computer Science 2025-02-24 Naor Cohen , Roy Orfaig , Ben-Zion Bobrovsky

As perception models continue to develop, the need for large-scale datasets increases. However, data annotation remains far too expensive to effectively scale and meet the demand. Synthetic datasets provide a solution to boost model…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Arpit Jadon , Haoran Wang , Phillip Thomas , Michael Stanley , S. Nathaniel Cibik , Rachel Laurat , Omar Maher , Lukas Hoyer , Ozan Unal , Dengxin Dai

Autonomous vehicles rely on their perception systems to acquire information about their immediate surroundings. It is necessary to detect the presence of other vehicles, pedestrians and other relevant entities. Safety concerns and the need…

Robotics · Computer Science 2020-07-15 You Li , Javier Ibanez-Guzman

Robust training and validation of Autonomous Driving Systems (ADS) require massive, diverse datasets. Proprietary data collected by Autonomous Vehicle (AV) fleets, while high-fidelity, are limited in scale, diversity of sensor…

This work proposes a novel motion guided method for target-less self-calibration of a LiDAR and camera and use the re-projection of LiDAR points onto the image reference frame for real-time depth upsampling. The calibration parameters are…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Juan Castorena , Gint Puskorius , Gaurav Pandey

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

Building LiDAR generative models holds promise as powerful data priors for restoration, scene manipulation, and scalable simulation in autonomous mobile robots. In recent years, approaches using diffusion models have emerged, significantly…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Kazuto Nakashima , Xiaowen Liu , Tomoya Miyawaki , Yumi Iwashita , Ryo Kurazume

Localization has been a challenging task for autonomous navigation. A loop detection algorithm must overcome environmental changes for the place recognition and re-localization of robots. Therefore, deep learning has been extensively…

Robotics · Computer Science 2023-04-19 Alex Junho Lee , Seungwon Song , Hyungtae Lim , Woojoo Lee , Hyun Myung

Autonomous Driving (AD) systems exhibit markedly degraded performance under adverse environmental conditions, such as low illumination and precipitation. The underrepresentation of adverse conditions in AD datasets makes it challenging to…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Yoel Shapiro , Yahia Showgan , Koustav Mullick

High-resolution road representations are a key factor for the success of (highly) automated driving functions. These representations, for example, high-definition (HD) maps, contain accurate information on a multitude of factors, among…

Robotics · Computer Science 2024-05-14 Leon Eisemann , Johannes Maucher