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Extrinsic Calibration of Camera Networks Using a Sphere [PDF]

open access: yesSensors, 2015
In this paper, we propose a novel extrinsic calibration method for camera networks using a sphere as the calibration object. First of all, we propose an easy and accurate method to estimate the 3D positions of the sphere center w.r.t.
Francis Deboeverie   +2 more
exaly   +10 more sources

Indirect Correspondence-Based Robust Extrinsic Calibration of LiDAR and Camera [PDF]

open access: yesSensors, 2016
LiDAR and cameras have been broadly utilized in computer vision and autonomous vehicle applications. However, in order to convert data between the local coordinate systems, we must estimate the rigid body transformation between the sensors. In this paper,
Kiho Kwak
exaly   +5 more sources

Extrinsic Calibration of Camera Networks Based on Pedestrians [PDF]

open access: yesSensors, 2016
In this paper, we propose a novel extrinsic calibration method for camera networks by analyzing tracks of pedestrians. First of all, we extract the center lines of walking persons by detecting their heads and feet in the camera images. We propose an easy
Junzhi Guan   +6 more
doaj   +7 more sources

Extrinsic Calibration of Camera and 2D Laser Sensors without Overlap [PDF]

open access: yesSensors, 2017
Extrinsic calibration of a camera and a 2D laser range finder (lidar) sensors is crucial in sensor data fusion applications; for example SLAM algorithms used in mobile robot platforms. The fundamental challenge of extrinsic calibration is when the camera-
Khalil M. Ahmad Yousef   +3 more
doaj   +3 more sources

Extrinsic Camera Calibration with Line-Laser Projection [PDF]

open access: yesSensors, 2021
Knowledge of precise camera poses is vital for multi-camera setups. Camera intrinsics can be obtained for each camera separately in lab conditions. For fixed multi-camera setups, the extrinsic calibration can only be done in situ.
Izaak Van Crombrugge   +2 more
doaj   +4 more sources

Extrinsic Calibration of Multiple 3D LiDAR Sensors by the Use of Planar Objects [PDF]

open access: yesSensors, 2022
Three-dimensional light detection and ranging (LiDAR) sensors have received much attention in the field of autonomous navigation owing to their accurate, robust, and rich geometric information.
Hyunsuk Lee, Woojin Chung
doaj   +2 more sources

Extrinsic Calibration and Odometry for Camera-LiDAR Systems [PDF]

open access: yesIEEE Access, 2019
Most autonomous mobile robots are often equipped with monocular cameras and 3D LiDARs to perform vital tasks such as localization and mapping. In this paper, we present a two-stage extrinsic calibration method as well as a hybrid-residual-based odometry ...
Chenghao Shi   +5 more
doaj   +2 more sources

A Review of Deep Learning-Based LiDAR and Camera Extrinsic Calibration [PDF]

open access: yesSensors (Basel)
Extrinsic parameter calibration is the foundation and prerequisite for LiDAR and camera data fusion of the autonomous system. This technology is widely used in fields such as autonomous driving, mobile robots, intelligent surveillance, and visual ...
Tan Z, Zhang X, Teng S, Wang L, Gao F.
europepmc   +2 more sources

Extrinsic Calibration of a Camera and a 2D LiDAR Using a Dummy Camera With IR Cut Filter Removed

open access: yesIEEE Access, 2020
Extrinsic calibration of a camera and a LiDAR is necessary to fuse information from each sensor. The real trajectory of the LiDAR is not visible on an image, therefore the accuracy of the extrinsic calibration is usually checked by evaluating residuals ...
Jae-Yeul Kim, Jong-Eun Ha
exaly   +3 more sources

Online Extrinsic Calibration on LiDAR-Camera System with LiDAR Intensity Attention and Structural Consistency Loss

open access: yesRemote Sensing, 2022
Extrinsic calibration on a LiDAR-camera system is an essential task for the advanced perception application for the intelligent vehicle. In the offline situation, a calibration object based method can estimate the extrinsic parameters in high precision ...
Pei An, Liheng Wang, An Pei
exaly   +3 more sources

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