SPECTRAL CHARACTERISTICS OF DIFFERENT BUILDING MATERIALS BY THE EYES OF LASER SCANNING

Authors

  • Eva Kučerová Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic
  • Jan Novotný Global Change Research Institute CAS, Bělidla 986/4a, 603 00 Brno, Czech Republic

DOI:

https://doi.org/10.51704/cjce.2017.vol3.iss2.pp111-117

Keywords:

Material reflectivity, spectrometer, full-waveform terrestrial laser scanner, amplitude, wetness

Abstract

During the last few years, terrestrial laser scanning has become a standard method of data acquisition in close range domain. Full-waveform terrestrial laser scanning is a recent technology which is able to digitize and record the complete waveform of the backscattered echo. It gives additional information about the structure and physical backscattering properties of the illuminated surface (reflectance and geometry). In this paper, the influence of different materials on the reflectivity was studied. The factors influencing material reflectivity were: laser wavelength, surface material type, surface colour and wetness. The measurements were focused on the materials used at buildings facades (wood, concrete and plaster). The measurements were performed by full-waveform terrestrial laser scanner (FW - TLS) VZ-400 and spectrometer ASD FieldSpec 4. The aim of this work was to find out what the differences in reflectance spectrum of used material were and whether the materials could be distinguished by their reflectance at 1550 nm (the laser wavelength of VZ-400).

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References

CARREA, D., ABELLAN, A., HUMAIR, F., MTASCI, B., DERRON, M.-H., JABIYEDOFF, M., 2016. Correction of terrestrial LiDAR intensity channel using Oren–Nayar reflectance model: An application to lithological differentiation. ISPRS Journal of Photogrammetry and Remote Sensing, 113, pp. 17-29.

KUČEROVÁ, E. Influences of range and incidence angle on measurements of a full - waveform terrestrial laser scanner VZ - 400. Czech Journal of Civil EngineerinG [online]. 2017, 2017(1), 78-83 [cit. 2017-11-10]. ISSN 2336 - 7148.

Instruction manual of VZ – 400.

ASD Inc., a PANalytical Company: FieldSpec 4 Hi-Res: High Resolution Spectroradiometer [online]. [cit. 2017-11-10]. Accessible from: https://www.asdi.com/products-andservices/fieldspec-spectroradiometers/fieldspec-4-hi-res

ASD Inc., a PANalytical Company: Contact Probe [online]. [cit. 2017-11-10]. Accessible from: https://www.asdi.com/products-and-services/accessories/contact-probe

ASD Inc., a PANalytical Company: Reference Panels [online]. [cit. 2017-11-10]. Accessible from: https://www.asdi.com/products-and-services/accessories/reference-panels

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Published

2017-12-31

How to Cite

Kučerová, E. and Novotný, J. (2017) “SPECTRAL CHARACTERISTICS OF DIFFERENT BUILDING MATERIALS BY THE EYES OF LASER SCANNING”, Czech Journal of Civil Engineering, 3(2), pp. 111-117. doi: 10.51704/cjce.2017.vol3.iss2.pp111-117.

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