The Effect of Partial Transparency of Spherical Targets on TLS Point Clouds Registration Accuracy

Lenda, Grzegorz; Marmol, Urszula; Buczek, Michał

doi:10.1007/s12205-017-1907-9

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…In addition, the laser beam penetrates into their centre, creating an ambiguous shape of the target. The spheres covered with matt paint are much better for testing purposes [12,17,21]. Other experiments related to the shape of targets have been carried out in [6,9].…”

Section: Fig 1location Of Targets For Inaccessible Terrain Between mentioning

confidence: 99%

Accuracy of Merging Point Clouds at the Maximum Range of a Scanner with Limited Possibilities of Target Placement

Lenda

Lewińska

Siwiec

2019

Archives of Civil Engineering

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The research was aimed at analysing the factors that affect the accuracy of merging point clouds when scanning over longer distances. Research takes into account the limited possibilities of target placement occurring while scanning opposite benches of quarries or open-pit mines, embankments from opposite banks of rivers etc. In all these cases, there is an obstacle/void between the scanner and measured object that prevents the optimal location of targets and enlarging scanning distances. The accuracy factors for cloud merging are: the placement of targets relative to the scanner and measured object, the target type and instrument range. Tests demonstrated that for scanning of objects with lower accuracy requirements, over long distances, it is optimal to choose flat targets for registration. For objects with higher accuracy requirements, scanned from shorter distances, it is worth selecting spherical targets. Targets and scanned object should be on the same side of the void.

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Section: Fig 1location Of Targets For Inaccessible Terrain Between mentioning

confidence: 99%

Accuracy of Merging Point Clouds at the Maximum Range of a Scanner with Limited Possibilities of Target Placement

Lenda

Lewińska

Siwiec

2019

Archives of Civil Engineering

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“…In this system, TLS technology is used to collect the point cloud data of the rigid portal frame of the Olympic restaurant in the Zhangjiakou competition area. By controlling a high-precision spherical target [20] , the scanning point cloud is registered [21] as a whole, and the whole point cloud model of the Olympic Village restaurant is obtained. Based on the point cloud model, establish the initial building coordinate datum and accurately adjust it according to the relative offset angle of the coordinate axis under the initial Building Coordinate Datum to obtain the accurate building coordinate system.…”

Section: Introductionmentioning

confidence: 99%

Intellectual quality analysis of temporary facilities installation for the XXIV Olympics Winter Games based on automatic factors extraction algorithm

Wang

Cheng

et al. 2023

AOPC 2022: Advanced Laser Technology and Applications

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Building installation quality inspection is an active research field in the overlapping fields of engineering survey and civil engineering. Furthermore, ensuring the installation quality of temporary buildings in large-scale sports events has more practical and social significance. In this paper, Terrestrial Laser Scanner (TLS) is used to acquire the point cloud of the steel portal frame of the Zhangjiakou Olympic restaurant. Based on the established building coordinate datum, the data of the whole model is simplified, components are extracted and classified. This paper presents an automatic measurement method of verticality and deflection based on point cloud model. The results demonstrate that the mean error of verticality of the steel portal frame is ±0.002 m, and the mean error of member deflection is better than ±0.028 m. The whole structure installation quality meets the specification requirements. The terrestrial laser scanning (TLS) measurement meets temporary building installation detection accuracy requirements.Temporary buildings; steel portal frame; point cloud; TLS; installation detection

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Influence of the setback of backgrounds behind semi-transparent synthetic targets on the accuracy of reflectorless distance measurements

Lenda

Buczek

2019

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The Effect of Partial Transparency of Spherical Targets on TLS Point Clouds Registration Accuracy

Cited by 3 publications

References 7 publications

Accuracy of Merging Point Clouds at the Maximum Range of a Scanner with Limited Possibilities of Target Placement

Accuracy of Merging Point Clouds at the Maximum Range of a Scanner with Limited Possibilities of Target Placement

Intellectual quality analysis of temporary facilities installation for the XXIV Olympics Winter Games based on automatic factors extraction algorithm

Influence of the setback of backgrounds behind semi-transparent synthetic targets on the accuracy of reflectorless distance measurements

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