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In this paper, we focus on fully automatic traffic surveillance camera calibration, which we use for speed measurement of passing vehicles. We improve over a recent state-of-the-art camera calibration method for traffic surveillance based…

Computer Vision and Pattern Recognition · Computer Science 2017-06-02 Jakub Sochor , Roman Juránek , Adam Herout

Hand-eye calibration is the problem of estimating the spatial transformation between a reference frame, usually the base of a robot arm or its gripper, and the reference frame of one or multiple cameras. Generally, this calibration is…

Robotics · Computer Science 2023-07-31 Daniele Evangelista , Emilio Olivastri , Davide Allegro , Emanuele Menegatti , Alberto Pretto

The process of camera calibration involves estimating the intrinsic and extrinsic parameters, which are essential for accurately performing tasks such as 3D reconstruction, object tracking and augmented reality. In this work, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Muhammad Waleed , Abdul Rauf , Murtaza Taj

Camera localization is a fundamental and key component of autonomous driving vehicles and mobile robots to localize themselves globally for further environment perception, path planning and motion control. Recently end-to-end approaches…

Computer Vision and Pattern Recognition · Computer Science 2020-05-14 Mi Tian , Qiong Nie , Hao Shen

Spatial scene-understanding, including dense depth and ego-motion estimation, is an important problem in computer vision for autonomous vehicles and advanced driver assistance systems. Thus, it is beneficial to design perception modules…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Hemang Chawla , Matti Jukola , Shabbir Marzban , Elahe Arani , Bahram Zonooz

In this paper, a method for Automatic Image Registration (AIR) through histogram is proposed. Automatic image registration is one of the crucial steps in the analysis of remotely sensed data. A new acquired image must be transformed, using…

Computer Vision and Pattern Recognition · Computer Science 2014-02-25 V. Karthikeyan

In this paper we address the problem of multiple camera calibration in the presence of a homogeneous scene, and without the possibility of employing calibration object based methods. The proposed solution exploits salient features present…

Computer Vision and Pattern Recognition · Computer Science 2013-08-05 Emanuel Aldea , Khurom H. Kiyani

Accurate LiDAR-camera calibration is crucial for multi-sensor systems. However, traditional methods often rely on physical targets, which are impractical for real-world deployment. Moreover, even carefully calibrated extrinsics can degrade…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Haebeom Jung , Namtae Kim , Jungwoo Kim , Jaesik Park

Camera calibration is an essential process in photogrammetry, serving as a crucial link between the 2D image coordinate system and the 3D world coordinate system. However, when observations are conducted through refractive interfaces, the…

Collaborative robots are becoming more common on factory floors as well as regular environments, however, their safety still is not a fully solved issue. Collision detection does not always perform as expected and collision avoidance is…

Robotics · Computer Science 2019-02-18 Justinas Miseikis , Inka Brijacak , Saeed Yahyanejad , Kyrre Glette , Ole Jakob Elle , Jim Torresen

While automotive radar sensors are widely adopted and have been used for automatic cruise control and collision avoidance tasks, their application outside of vehicles is still limited. As they have the ability to resolve multiple targets in…

Robotics · Computer Science 2023-06-26 Alexander Tsaregorodtsev , Michael Buchholz , Vasileios Belagiannis

Radiation detectors deployed as part of a large urban network or for homeland security monitoring must maintain reliable energy calibration even when subjected to substantial variations in temperature and ambient background radiation.…

Instrumentation and Detectors · Physics 2026-04-23 Marco Salathe , Nicolas Abgrall , Mark S. Bandstra , Tenzing H. Y. Joshi , Brian J. Quiter , Reynold J. Cooper

This project aims to create an automated image captioning system that generates natural language descriptions for input images by integrating techniques from computer vision and natural language processing. We employ various different…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Joshua Adrian Cahyono , Jeremy Nathan Jusuf

We present new methods for simultaneously estimating camera geometry and time shift from video sequences from multiple unsynchronized cameras. Algorithms for simultaneous computation of a fundamental matrix or a homography with unknown time…

Computer Vision and Pattern Recognition · Computer Science 2017-04-25 Cenek Albl , Zuzana Kukelova , Andrew Fitzgibbon , Jan Heller , Matej Smid , Tomas Pajdla

For autonomous vehicles, an accurate calibration for LiDAR and camera is a prerequisite for multi-sensor perception systems. However, existing calibration techniques require either a complicated setting with various calibration targets, or…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Tao Ma , Zhizheng Liu , Guohang Yan , Yikang Li

Camera calibration is an important prerequisite towards the solution of 3D computer vision problems. Traditional methods rely on static images of a calibration pattern. This raises interesting challenges towards the practical usage of event…

Computer Vision and Pattern Recognition · Computer Science 2021-07-29 Kun Huang , Yifu Wang , Laurent Kneip

This work introduces a novel end-to-end approach for estimating extrinsic parameters of cameras in multi-camera setups on real-life sports fields. We identify the source of significant calibration errors in multi-camera environments and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Grzegorz Rypeść , Grzegorz Kurzejamski

In industrial scenarios, effective human-robot collaboration relies on multi-camera systems to robustly monitor human operators despite the occlusions that typically show up in a robotic workcell. In this scenario, precise localization of…

Robotics · Computer Science 2024-06-18 Davide Allegro , Matteo Terreran , Stefano Ghidoni

This paper presents MEMROC (Multi-Eye to Mobile RObot Calibration), a novel motion-based calibration method that simplifies the process of accurately calibrating multiple cameras relative to a mobile robot's reference frame. MEMROC utilizes…

Robotics · Computer Science 2024-10-14 Davide Allegro , Matteo Terreran , Stefano Ghidoni

Camera calibration is an essential prerequisite for event-based vision applications. Current event camera calibration methods typically involve using flashing patterns, reconstructing intensity images, and utilizing the features extracted…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Zibin Liu , Banglei Guan , Yang Shang , Zhenbao Yu , Yifei Bian , Qifeng Yu