Classification of terrestrial laser scanner point clouds: A comparison of methods for landslide monitoring from mathematical surface approximation
G Kermarrec, Z Yang, D Czerwonka-Schröder - Remote Sensing, 2022 - mdpi.com
Terrestrial laser scanners (TLS) are contact-free measuring sensors that record dense point
clouds of objects or scenes by acquiring coordinates and an intensity value for each point …
clouds of objects or scenes by acquiring coordinates and an intensity value for each point …
The variance inflation factor to account for correlations in likelihood ratio tests: deformation analysis with terrestrial laser scanners
The measurement noise of a terrestrial laser scanner (TLS) is correlated. Neglecting those
correlations affects the dispersion of the parameters when the TLS point clouds are …
correlations affects the dispersion of the parameters when the TLS point clouds are …
Deformation analysis using b-spline surface with correlated terrestrial laser scanner observations—A bridge under load
The choice of an appropriate metric is mandatory to perform deformation analysis between
two point clouds (PC)—the distance has to be trustworthy and, simultaneously, robust …
two point clouds (PC)—the distance has to be trustworthy and, simultaneously, robust …
[HTML][HTML] Analysis of the displacements of pipeline overpasses based on geodetic monitoring results
There are many approaches to address geospatial monitoring of pipeline overpasses,
among which the most widespread methods are terrestrial laser scanning and total station …
among which the most widespread methods are terrestrial laser scanning and total station …
ILRS reference point determination using close range photogrammetry
M Lösler, C Eschelbach, T Klügel, S Riepl - Applied Sciences, 2021 - mdpi.com
A global geodetic reference system (GGRS) is realized by physical points on the Earth's
surface and is referred to as a global geodetic reference frame (GGRF). The GGRF is …
surface and is referred to as a global geodetic reference frame (GGRF). The GGRF is …
Uncertainty modelling of laser scanning point clouds using machine-learning methods
J Hartmann, H Alkhatib - Remote Sensing, 2023 - mdpi.com
Terrestrial laser scanners (TLSs) are a standard method for 3D point cloud acquisition due
to their high data rates and resolutions. In certain applications, such as deformation analysis …
to their high data rates and resolutions. In certain applications, such as deformation analysis …
Elementary error model applied to terrestrial laser scanning measurements: Study case arch dam kops
G Kerekes, V Schwieger - Mathematics, 2020 - mdpi.com
All measurements are affected by systematic and random deviations. A huge challenge is to
correctly consider these effects on the results. Terrestrial laser scanners deliver point clouds …
correctly consider these effects on the results. Terrestrial laser scanners deliver point clouds …
On estimating the Hurst parameter from least-squares residuals. Case study: Correlated terrestrial laser scanner range noise
G Kermarrec - Mathematics, 2020 - mdpi.com
Many signals appear fractal and have self-similarity over a large range of their power
spectral densities. They can be described by so-called Hermite processes, among which the …
spectral densities. They can be described by so-called Hermite processes, among which the …
A point cloud filtering method based on anisotropic error model
Many modelling applications require 3D meshes that should be generated from
filtered/cleaned point clouds. This paper proposes a methodology for filtering of terrestrial …
filtered/cleaned point clouds. This paper proposes a methodology for filtering of terrestrial …
The stochastic model for Global Navigation Satellite Systems and terrestrial laser scanning observations: A proposal to account for correlations in least squares …
The best unbiased estimates of unknown parameters in linear models have the smallest
expected mean-squared errors as long as the residuals are weighted with their true variance …
expected mean-squared errors as long as the residuals are weighted with their true variance …