Analysis of Structure Surveying Method by 3D Laser Scanners

Terrestrial laser scanning (TLS) in carrying out projects in the con- struction industry is increasingly applied. This paper is considering the issue of ac- curacy that can be achieved by pulse TLS, evaluation of the measurement results and the applicability of this technology for the structure survey. Analyzing the measure- ment methods allows the identification of systematic errors of the instrument, which is serious obstacle for high-accuracy of TLS. In this article a standardization measu- rement procedure and the relationship between the projected tolerance and TLS cali- bration are given. At the same time the results of individual calibration of pulsed Le- ica scanners are presented, in which the systematic errors of measurement results are determined by the given model. Evaluation of survey results confirmed the high ap- plicability of TLS for the structures survey.

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