Results 41 to 50 of about 5,678 (254)

Testing and Validation of Automotive Point-Cloud Sensors in Adverse Weather Conditions

open access: yesApplied Sciences, 2019
Light detection and ranging sensors (LiDARS) are the most promising devices for range sensing in automated cars and therefore, have been under intensive development for the last five years. Even though various types of resolutions and scanning principles
Maria Jokela   +2 more
doaj   +1 more source

Optimizing Scan Homogeneity for Building Full-3D Lidars based on Rotating a Multi-Beam Velodyne Rangefinder [PDF]

open access: yes, 2018
Multi-beam lidar (MBL) scanners are compact, light, and accessible 3D sensors with high data rates, but they offer limited vertical resolution and field of view (FOV). Some recent robotics research has profited from the addition of a degree-of-freedom
Garcia-Cerezo, Alfonso J.   +3 more
core   +1 more source

Scanning lidar bathymeter for water depth measurement

open access: yesGeocarto International, 1986
A scanning lidar bathymeter has been developed for airborne hydrographic surveying. The system has a depth penetration capability of four optical diffuse attenuation lengths, with an accuracy of ±0.3 m.From an altitude of 500 m the system generates a swath 270 m wide and a uniform sounding density on a 35 m grid spacing with a positioning accuracy of ∼
John Banic   +2 more
openaire   +1 more source

Flight Planning for LiDAR-Based UAS Mapping Applications

open access: yesISPRS International Journal of Geo-Information, 2020
In the last two decades, unmanned aircraft systems (UAS) were successfully used in different environments for diverse applications like territorial mapping, heritage 3D documentation, as built surveys, construction monitoring, solar panel placement and ...
Bashar Alsadik, Fabio Remondino
doaj   +1 more source

Laser-scanning rangefinder fixed on a gimbal with two degrees of freedom

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2021
A laser-scanning rangefinder mounted on a gimbal with two degrees of freedom is presented. The rangefinder can be used as part of a navigation system of an unmanned aerial vehicle to avoid obstacles or prevent collisions.
V. A. Zelenskiy, M. V. Kapalin
doaj   +1 more source

LUOJIA Explorer PMS: Panoramic Odometry and Mapping with Structural Information [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Accurate dense reconstruction of unknown spatial environments is crucial for applications such as underground exploration and planetary missions. Existing methods face challenges like observing blind spots and the difficulty of edge feature extraction in
Y. Xu   +21 more
doaj   +1 more source

AUTOMATIC OBJECT CLASSIFICATION ACCORDING TO 3D-LIDAR DATA BASED ON SINGLE-PHOTON COUNTING TECHNOLOGY [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2018
Subject of Research. We compare the effectiveness of the procedure for automatic object classification according to 3d-lidar data, built on the basis of single-photon counting technology, with the efficiency of the classification procedure with the usage
Timofeev A.V., Denisov V.M.
doaj   +1 more source

An Electromagnetically-Driven Piezoresistively Sensed CMOS MEMS Scanning Mirror for Projection Display

open access: yesProceedings, 2017
Bi-axial MEMS scanning mirrors are considered the key component for applications like laser scanning projectors and Lidars. Most studies have shown fabricated devices driven by open-loop operation without sensing, making it difficult to meet the ...
Zhong-He Li   +2 more
doaj   +1 more source

Characterization of a RS-LiDAR for 3D Perception

open access: yes, 2017
High precision 3D LiDARs are still expensive and hard to acquire. This paper presents the characteristics of RS-LiDAR, a model of low-cost LiDAR with sufficient supplies, in comparison with VLP-16.
Liao, Qinghai   +5 more
core   +2 more sources

An error reduction algorithm to improve lidar turbulence estimates for wind energy [PDF]

open access: yesWind Energy Science, 2017
Remote-sensing devices such as lidars are currently being investigated as alternatives to cup anemometers on meteorological towers for the measurement of wind speed and direction.
J. F. Newman, A. Clifton
doaj   +1 more source

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