Results 11 to 20 of about 268 (165)

High-Precision External Parameter Calibration Method for Camera and Lidar Based on a Calibration Device

open access: yesIEEE Access, 2023
The fusion of camera and lidar plays an important role in the field of robotic perception. The accurate external parameter calibration is a necessary prerequisite for sensor fusion.
Song Fan   +3 more
doaj   +3 more sources

External Extrinsic Calibration of Multi-Modal Imaging Sensors: A Review

open access: yesIEEE Access, 2023
With the rapid development of autonomous driving, robotics, and intelligent transportation, multi-sensor-based environment sensing technology for intelligent vehicles has become a popular research direction.
Zhien Liu   +4 more
doaj   +3 more sources

Research on Calibration Algorithm of Camera and LiDAR for Transport Vehicles in Open-pit Mines

open access: yesKongzhi Yu Xinxi Jishu, 2022
In the intelligent driving system of transport vehicles in open-pit mines, the data fusion of camera and LiDAR plays a vital role in the detection, recognition and tracking of obstacles. Aiming at the problem of camera and LiDAR spatial coordinate unity,
XU Yanghan   +5 more
doaj   +3 more sources

A Simple Calibration and Verification Method for Solid-State Lidar

open access: yesShanghai Jiaotong Daxue xuebao, 2021
In order to solve the problem of cumbersome external parameter calibration of solid-state lidar and overcome the difficulty in verifying its calibration results, a simple calibration and verification method for solid-state lidar is proposed.
YANG Yiwen, HE Yuesheng, WANG Chunxiang, YANG Ming
doaj   +1 more source

Improvement of vision measurement system for cutting head position of boom-type roadheader

open access: yesGong-kuang zidonghua, 2021
In the vision measurement system for cutting head position of cantilever roadheader based on infrared LED characteristics, the stability of external calibration and the accuracy of infrared LED spot center extraction have an important influence on the ...
ZHANG Xuhui1,2   +5 more
doaj   +1 more source

Identifiability Analysis for Configuration Calibration in Distributed Sensor Networks

open access: yesRemote Sensing, 2022
In this work, the parameter identifiability of sensor position perturbations in a distributed network is analyzed through establishing the link between rank of the Jacobian matrix and parameter identifiability under Gaussian noise.
Xiaoyu Liu, Tong Wang, Jinming Chen
doaj   +1 more source

Automatic Targetless Monocular Camera and LiDAR External Parameter Calibration Method for Mobile Robots

open access: yesRemote Sensing, 2023
With the continuous development and popularization of sensor-fusion technology for mobile robots, the application of camera and light detection and ranging (LiDAR) fusion perception has become particularly important.
Ying Yu   +4 more
doaj   +1 more source

Research on a Dynamic Calibration Method for Photogrammetry Based on Rotary Motion

open access: yesApplied Sciences, 2023
Photogrammetry as an engineering measurement technology for the rapid and non-contact acquisition of geometric parameters, such as the attitude, position, and shape of a measured object, is widely used in the development and production processes of the ...
Jia Ou   +6 more
doaj   +1 more source

Investigation into Macro- and Microcrack Propagation Mechanism of Red Sandstone under Different Confining Pressures Using 3D Numerical Simulation and CT Verification

open access: yesGeofluids, 2021
The growth and evolvement features of crack are of great significance to study the failure mechanism of rock mass and valuate the stability of the cavity.
Wen Zhang   +4 more
doaj   +1 more source

Method for Determining Elements of Internal Orientation Calibration in Multi-Matrix Optoelectronic Devices

open access: yesНаука и техника, 2020
In the operation schemes of optical electronic devices (OED), such as digital autocollimators, direction finders, Shack-Hartmann sensors, as well as astro-orientation systems, projection measuring systems, geometric calibration schemes for OED, the photo-
M. A. Starasotnikau   +2 more
doaj   +1 more source

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