Results 51 to 60 of about 39,346 (163)

Determination of terazosin by cloud point extraction-fluorimetric combined methodology

open access: yesTalanta, 2007
A new sensitive and selective preconcentration-fluorimetric method for determination of terazosin based on its native fluorescence was developed. The analyte, initially present in aqueous matrix, was treated with an extractive non-ionic surfactant solution and separated by the clouding phenomenon.
Wang, Chien Chun   +3 more
openaire   +3 more sources

A Building Extraction Approach Based on the Fusion of LiDAR Point Cloud and Elevation Map Texture Features

open access: yesRemote Sensing, 2019
Building extraction is an important way to obtain information in urban planning, land management, and other fields. As remote sensing has various advantages such as large coverage and real-time capability, it becomes an essential approach for building ...
Xudong Lai   +3 more
doaj   +1 more source

Rapid Target Extraction in LiDAR Sensing and Its Application in Rocket Launch Phase Measurement

open access: yesApplied Sciences
The paper presents a fast method for 3D point cloud target extraction, addressing the challenge of time-consuming processing in LiDAR-based 3D point cloud data.
Xiaoqi Liu   +5 more
doaj   +1 more source

Automatic Vehicle Extraction from Airborne LiDAR Data Using an Object-Based Point Cloud Analysis Method

open access: yesRemote Sensing, 2014
Automatic vehicle extraction from an airborne laser scanning (ALS) point cloud is very useful for many applications, such as digital elevation model generation and 3D building reconstruction.
Jixian Zhang   +3 more
doaj   +1 more source

A New Method of Ski Tracks Extraction Based on Laser Intensity Information

open access: yesApplied Sciences, 2022
At present, the mainstream laser point cloud classification algorithms are mainly based on the geometric information of the target. Nevertheless, if there is occlusion between the targets, the classification effect will be negatively affected.
Wenxin Wang   +2 more
doaj   +1 more source

An Algorithm for Building Exterior Facade Corner Point Extraction Based on UAV Images and Point Clouds

open access: yesRemote Sensing, 2023
The high-precision building exterior facade corner point (BEFCP) is an essential element in topographic and cadastral surveys. However, current extraction methods rely on the interactions of humans with the 3D real-scene models produced by unmanned ...
Xinnai Zhang, Jiuyun Sun, Jingxiang Gao
doaj   +1 more source

Partition of α-lactoalbumin and β-lactoglobulin by cloud point extraction

open access: yesJournal of Chromatography B, 2008
This work aimed to study the partition of cheese whey proteins alpha-lactoalbumin and beta-lactoglobulin using aqueous two-phase system by applying the cloud point extraction technique. The cloud point temperatures were determined under different concentrations of copolymer and salt.
Paulo Sérgio, Monteiro   +4 more
openaire   +3 more sources

DKGCN-PCR: Deformable Kernel Graph Convolutional Network for Point Cloud Registration

open access: yesJournal of the European Optical Society-Rapid Publications
We study the problem of feature extraction in point cloud registration. Traditional point clouds has the characteristic of irregular structure, which causes the neighborhood relationship that cannot effectively obtain point cloud data, and increases the ...
Niu Yuandong   +8 more
doaj   +1 more source

Cloud Point Extraction as a Method for Preconcentration of Metal Ions

open access: yesJournal of Engineering & Processing Management, 2020
<p>Cloud point extraction (CPE) is an attractive technique that reduces solvent con- sumption and exposure, disposal costs, and process time. This method has an im- portant practical application and is used to separate and concentrate the analyte as a step before its determination, and after the formation of a poorly ...
Nusreta Hasic, Emir Horozic
openaire   +2 more sources

Hybrid Filtering Method for Multisource Point Cloud Data of Maglev Tracks [PDF]

open access: yesJisuanji gongcheng
In the simulation data processing of maglev tracks, the filtering and extraction of maglev track point cloud data is an important link. Thus, practical applications should adopt an efficient filtering method according to the characteristics of the maglev
ZHANG Yuxin, ZHANG Lei, OU Dongxiu
doaj   +1 more source

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