3D Terrestrial Laser Scanning, LIDAR
Application of 3D terrestrial laser scanning in the geodetic activities of "GEO ZEMIA" Ltd.
The company uses the professional software for processing of the data from the 3D terrestrial laser scanning Trimble RealWorks.
3D Terrestrial Laser Scanning, as part of LIDAR (LIght Detection And Ranging) technology is one contemporary way for fast and accurate determination (calculation) of 3D coordinates of points from the surrounding space, using geodetic measurements. Laser scanners could be classified by their way of measurement:
According to the way of registration of the measurements, the laser scanning system could be divided into pulse and phase based.
The values of the following quantities are subject of record: horizontal, vertical angle and the distance to each point from the cloud (see below) as well as the intensity of the reflected laser signal. The coordinates of the points from the cloud are determined in the local coordinate system of the laser scanner. The data could be also georeferenced in the relevant coordinate system.
From the created 3D digital model could be extracted very high accuracy spatial data for the scanned object. The result from the conducted geodetic measurements is the so called point cloud. The last contains exclusively accurate information for the object.This is also valid for objects with complex spatial geometry.
One of the many advantages of the 3D laser scanning is the enormous decrease of the costs for performing of the geodetic measurements, without compromise in the quality.
-surveying (design, geodetic measurements, 3D visualization of objects, high-accuracy measurements of any details of the scanned object, e.g. distances, heights;
windows from orthophotoplans
geodetic measurements of a facade
video from the 3D digital model of Troian Monastery
video from the 3D digital model of the west facade of Troian Monastery
Photos from the geodetic measurements with our 3D terrestrial laser scanner Trimble TX5
3D terrestrial laser scanning of Troian Monastery
creation of 3D digital models of decorative and agriculture plants
geodetic measurements - 3D terrestrial laser scanning of a steel construction
view from "inside" of Trimble RealWorks
construction of a building - view from above
determination of the dimensions of the object in the 3D space
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