How to efficiently determine the range precision of 3D terrestrial laser scanners
As laser scanning technology has improved a lot in recent years, terrestrial laser scanners
(TLS) have become popular devices for surveying tasks with high accuracy demands, such …
(TLS) have become popular devices for surveying tasks with high accuracy demands, such …
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 …
Terrestrial laser scanner two-face measurements for analyzing the elevation-dependent deformation of the onsala space observatory 20-m radio telescope's main …
For accurate astronomic and geodetic observations based on radio telescopes, the
elevation-dependent deformation of the radio telescopes' main reflectors should be known …
elevation-dependent deformation of the radio telescopes' main reflectors should be known …
Target-based terrestrial laser scan registration extended by target orientation
In almost all projects, in which terrestrial laser scanning is used, the scans must be
registered after the data acquisition. Despite more and more new and automated methods …
registered after the data acquisition. Despite more and more new and automated methods …
Investigating the resolution capability of terrestrial laser scanners and its impact on the effective number of measurements
The resolution capability of terrestrial laser scanners does not necessarily equal the
scanning resolution. Laser scanners can acquire the surrounding with a point distance of …
scanning resolution. Laser scanners can acquire the surrounding with a point distance of …
Towards the empirical determination of correlations in terrestrial laser scanner range observations and the comparison of the correlation structure of different scanners
The determination of a fully populated variance-covariance matrix (VCM) of a point cloud
acquired with a terrestrial laser scanner (TLS) is not straightforward as physical correlations …
acquired with a terrestrial laser scanner (TLS) is not straightforward as physical correlations …
Influence of the simplified stochastic model of TLS measurements on geometry-based deformation analysis
Terrestrial laser scanners (TLS) are powerful instruments that can be employed for
deformation monitoring due to their high precision and spatial resolution in capturing 3D …
deformation monitoring due to their high precision and spatial resolution in capturing 3D …
On the sensitivity of the parameters of the intensity-based stochastic model for terrestrial laser scanner. Case study: B-spline approximation
For a trustworthy least-squares (LS) solution, a good description of the stochastic properties
of the measurements is indispensable. For a terrestrial laser scanner (TLS), the range …
of the measurements is indispensable. For a terrestrial laser scanner (TLS), the range …
Automatic in-situ self-calibration of a panoramic TLS from a single station using 2D keypoints
Terrestrial laser scanner (TLS) measurements are unavoidably affected by systematic
influences due to internal misalignments. The magnitude of the resulting errors can exceed …
influences due to internal misalignments. The magnitude of the resulting errors can exceed …