Influence of Control Points Configuration on the Mobile Laser Scanning Accuracy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F21%3APU143019" target="_blank" >RIV/00216305:26110/21:PU143019 - isvavai.cz</a>

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1755-1315/906/1/012091" target="_blank" >https://iopscience.iop.org/article/10.1088/1755-1315/906/1/012091</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1755-1315/906/1/012091" target="_blank" >10.1088/1755-1315/906/1/012091</a>

Result language

angličtina

Original language name

Influence of Control Points Configuration on the Mobile Laser Scanning Accuracy

Original language description

Mobile mapping systems (MMS) are becoming widely used in standard geodetic tasks more commonly in the last years. The paper is focused on the influence of control points (CPs) number and configuration on mobile laser scanning accuracy. The mobile laser scanning (MLS) data was acquired by MMS RIEGL VMX-450. The resulting point cloud was compared with two different reference data sets. The first reference data set consisted of a high-accuracy test point field (TPF) measured by a Trimble R8s GNSS system and a Trimble S8 HP total station. The second reference data set was a point cloud from terrestrial laser scanning (TLS) using two Faro Focus3D X 130 laser scanners. The coordinates of both reference data sets were determined with significantly higher accuracy than the coordinates of the tested MLS point cloud. The accuracy testing is based on coordinate differences between the reference data set and the tested MLS point cloud. There is a minimum number of 6-7 CPs in our scanned area (based on MLS trajectory length) to achieve the declared relative accuracy of trajectory positioning according to the RIEGL datasheet. We tested two types of ground control point (GCP) configurations for 7 GCPs, using TPF reference data. The first type is a trajectory-based CPs configuration, and the second is a geometry-based CPs configuration. The accuracy differences of the MLS point clouds with trajectory-based CPs configuration and geometry-based CPs configuration are not statistically significant. From a practical perspective, a geometry-based CPs configuration is more advantageous in the nonlinear type of urban area such as our one. The following analyzes are performed on geometry-based CPs configuration variants. We tested the influence of changing the location of two CPs from ground to roof. The effect of the vertical configuration of the CPs on the accuracy of the tested MLS point cloud has not been demonstrated. The effect of the number of control points on the accuracy of the ML

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

7th World Multidisciplinary Earth Sciences Symposium, WMESS 2021 Prague

ISBN

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ISSN

1755-1307

e-ISSN

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Number of pages

10

Pages from-to

1-10

Publisher name

IOP Publishing

Place of publication

Bristol (UK)

Event location

Praha

Event date

Sep 6, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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