High-Precision 3D Object Capturing with Static and Kinematic Terrestrial Laser Scanning in Industrial Applications—Approaches of Quality Assessment

Stenz, Ulrich; Hartmann, Jens; Paffenholz, Jens‐André; Neumann, Ingo

doi:10.3390/rs12020290

Cited by 13 publications

(9 citation statements)

References 11 publications

(39 reference statements)

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“…The accuracy of the laser scanning in relation to the total station measurements was analyzed among others in [10,[23][24][25]. In the matters related to monitoring, various measurement techniques are often combined, which allows for the collecting of a wider range of data and the building of multi-sensor-systems [26,27]. TLS is often used in the monitoring of displacements of landslides [28], in the retaining of structures [29][30][31][32], in mechanically stabilized earth walls [33], or in various types of hydrotechnical facilities [10,25,34,35].…”

Section: Geodetic Techniques For Displacement Controlmentioning

confidence: 99%

Application of Geodetic Measuring Methods for Reliable Evaluation of Static Load Test Results of Foundation Piles

Muszyński

Rybak

2021

Remote Sensing

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Geodetic measuring methods are widely used in the course of various geotechnical works. The main purpose is usually related to the location in space, geometrical dimensions, settlements, deflections, and other forms of displacements and their consequences. This study focuses on the application of selected surveying methods in static load tests (SLTs) of foundation piles. Basic aspects of the SLT are presented in the introductory section, together with the explanation of the authors’ motivation behind the novel (but already sufficiently tested) application of remote methods introduced to confirm, through inverse analysis, the load applied to the pile head under testing at every stage of its loading. Materials and methods are described in the second section in order to provide basic information on the test site and principles of the SLT method applied. The case study shows the methodology of displacement control in the particular test, which is described in light of a presented review of geodetic techniques for displacement control, especially terrestrial laser scanning and robotic tacheometry. The geotechnical testing procedure, which is of secondary importance for the current study, is also introduced in order to emphasize the versatility of the proposed method. Special attention is paid to inverse analysis (controlling of the pile loading force on the basis of measured deflections, and static calculations by means of standard structural analysis and the finite element method (FEM)) as a tool to raise the credibility of the obtained SLT results. The present case study from just one SLT, instrumented with various geodetic instrumentation, shows the results of a real-world dimensions test. The obtained variability of the loading force within a range of 15% (depending on real beam stiffness) proves good prospects for the application of the proposed idea in practice. The results are discussed mainly in light of the previous authors’ experience with the application of remote techniques for reliable displacement control. As only a few references could be found (mainly by private communication), both the prospects for new developments using faster and more accurate instruments as well as the need for the validation of these findings on a larger number of SLTs (with a very precise definition of beam stiffness) are underlined in the final remarks.

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Section: Geodetic Techniques For Displacement Controlmentioning

confidence: 99%

Application of Geodetic Measuring Methods for Reliable Evaluation of Static Load Test Results of Foundation Piles

Muszyński

Rybak

2021

Remote Sensing

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“…The performances of two portable mobile mapping systems have been presented, including the hand-held ZEB-REVO and the Leica Pegasus backpack systems in indoor and outdoor regions [4]. On the other hand, compact terrestrial or stationary laser scanning systems are in use in many disciplines of engineering, including architecture, archaeology, and surveying tasks [5]. A modern rotating mechanism-based scanning system design has been presented by researchers to build the 3D model using multibeam scanners [6].…”

Section: Introductionmentioning

confidence: 99%

Development of a Low-Cost Stationary Laser Scanning System for Generation of Building Information Models

Jafri

Siddiqui

Akbar

et al. 2022

ELEKTRON ELEKTROTECH

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This paper presents a method for developing a 3D point cloud map of any indoor and outdoor vicinities using an indigenously developed stationary scanning system comprising of a single low cost 2D laser scanner. The data logging of scanner and required inertial measurement units (IMUs) has been carried out using a Robot Operating System (ROS). Multiple divergent environments have been scanned and 3D point clouds have been developed, which have been found accurate when compared to the ground truth. In addition, the Building Information Model (BIM) of the surveyed vicinities have been developed using generated point clouds. Compared to available surveying solutions present in the local market, the developed system has been found accurate, faster, economical, and user-friendly to generate structural results of the surveyed vicinities in detail.

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“…However, these techniques have numerous limitations and have poor performance in dynamic and complicated indoor environments. With the advanced high speed and accuacy devices, the captured 3D object [15] have been applied in suveliance applicaitons for quality assessmen. Moreover, the exiting CCTV system [16], [17], [18] consisting of monocular RGB cameras is not cover the whole the workspace and CCTV is hard to detect the 3D human attributes.…”

Section: Introductionmentioning

confidence: 99%

Social Density Monitoring Toward Selective Cleaning by Human Support Robot With 3D Based Perception System

Ramalingam

Gómez

et al. 2021

IEEE Access

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Monitoring the safe social distancing then conducting efficient sterilization in potentially crowded public places are necessary but challenging especially during the COVID-19 pandemic. This work presents the 3D human space-based surveillance system enabling selective cleaning framework. To this end, the proposed AI-assisted perception techniques is deployed on Toyota Human Support Robot (HSR) equipped with autonomous navigation, Lidar, and RGBD vision sensor. The human density mapping represented as heatmap was constructed to identify areas with the level being likely the risks for interactions. The surveillance framework adopts the 3D human joints tracking technique and the accumulated asymmetrical Gaussian distribution scheme modeling the human location, size, and direction to quantify human density. The HSR generates the human density map as a grid-based heatmap to perform the safe human distance monitoring task while navigating autonomously inside the pre-built map. Then, the cleaning robot uses the levels of the generated heatmap to sterilize by the selective scheme. The experiment was tested in public places, including food court and wet market. The proposed framework performance analyzed with standard performance metrics in various map sizes spares about 19 % of the disinfection time and 15 % of the disinfection liquid usage, respectively.

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High-Precision 3D Object Capturing with Static and Kinematic Terrestrial Laser Scanning in Industrial Applications—Approaches of Quality Assessment

Cited by 13 publications

References 11 publications

Application of Geodetic Measuring Methods for Reliable Evaluation of Static Load Test Results of Foundation Piles

Application of Geodetic Measuring Methods for Reliable Evaluation of Static Load Test Results of Foundation Piles

Development of a Low-Cost Stationary Laser Scanning System for Generation of Building Information Models

Social Density Monitoring Toward Selective Cleaning by Human Support Robot With 3D Based Perception System

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