Results 11 to 20 of about 4,784,649 (246)

Hand-Held Personal Laser Scanning – Current Status and Perspectives for Forest Inventory Application [PDF]

Croatian Journal of Forest Engineering, 2021
The emergence of hand-held Personal Laser Scanning (H-PLS) systems in recent years resulted in initial research on the possibility of its application in forest inventory, primarily for the estimation of the main tree attributes (e.g. tree detection, stem
Ivan Balenović, Xinlian Liang, Luka Jurjević, Juha Hyyppä, Ante Seletković, Antero Kukko   +5 more
doaj   +7 more sources

INVESTIGATION OF THE SUITABILITY OF A PERSONAL LASER SCANNING DEVICE FOR THE MONITORING OF SMALL WATER BODIES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
This study investigates the applicability of a personal laser scanner (PLS) in surveying small creeks in urban areas. The surveying of the creek geometry can be done only with the PLS system or as a combination of terrestrial PLS measurement and airborne
R. Blaskow, A. Eltner
doaj   +3 more sources

Noise Analysis for Unbiased Tree Diameter Estimation from Personal Laser Scanning Data

Remote Sensing
Personal laser scanning devices employing Simultaneous Localization and Mapping (SLAM) technology have rightfully gained traction in various applications, including forest mensuration and inventories.
Karel Kuželka, Peter Surový
doaj   +3 more sources

Influence of Vegetation Period on Personal Laser Scanning Accuracy for Tree Attribute Estimation in Pedunculate Oak and European Beech Forests [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Estimating the main tree attributes using hand-held personal laser scanning (PLS) instruments has been an ongoing area of research. So far, the vast majority of the studies have been conducted, during non-vegetation (leaf-off) period when the scanning ...
A. Kokeza, D. Medak, F. Domazetović, I. Marić, A. Šiljeg, A. Seitz, I. Balenović   +6 more
doaj   +2 more sources

Structural Health Monitoring of Bridges with Personal Laser Scanning: Segment-based Analysis of systematic Point Cloud Deformations [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Bridge structures can be surveyed using a number of different methods. Established are image-based methods using structure from motion by an unmanned aerial vehicle (UAV), terrestrial laser scanning (TLS), or a combination of both methods.
R. Blaskow, H.-G. Maas
doaj   +3 more sources

Seasonal performance in basal area estimation: a comparative study of a smartphone LiDAR application and a professional personal laser scanning

Frontiers in Forests and Global Change
The digital transformation of forest inventories requires the validation of consumer-grade LiDAR technologies under varying environmental and phenological conditions. This study evaluates the seasonal performance and operational efficiency of stand-level
Jenny Magaly Morocho Toaza, Stelian Alexandru Borz   +1 more
doaj   +2 more sources

Evaluating the Accuracy of Pedunculate Oak Tree Volume Estimates Using Static Terrestrial and Mobile Personal Laser Scanning [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Tree volume estimation is fundamental to forest management and inventory, yet traditional methods rely on allometric equations that introduce significant uncertainties due to generalized relationships and measurement limitations. This study evaluates the
A. Seitz, K. Indir, A. Kokeza, I. Balenović   +3 more
doaj   +2 more sources

A transputer Based Laser Scanning System [PDF]

, 1992
This paper presents a transputer-based laser scanner. This is to be integrated into an existing transputer-based mariufacturing environment to allow rapid construction of' 3-0 models.
Tewkesbury, G, Hollis, JEL, Billingsley, J, Harrison, DJ, Sanders, DA   +4 more
core   +6 more sources

ANALYSIS OF POSSIBLE GEODETIC APPROACHES FOR 3D MODEL CREATION IN BIM [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
The topic of this paper is the description and analysis of technologies for generating a geometric basis for BIM. The main element is an analysis of the capabilities of mobile laser scanning and the outputs of this method compared to other methods.
K. Pavelka jr., L. Běloch, K. Pavelka
doaj   +1 more source

Electron microscopic measurement of the size of the optical focus in laser scanning microscopy [PDF]

, 2012
We describe a method for measuring the lateral focal spot size of a multiphoton laser scanning microscope (LSM) with unprecedented accuracy. A specimen consisting of an aluminum film deposited on a glass coverslip was brought into focus in a LSM and the ...
McConnell, Gail
core   +4 more sources