Application of 3D terrestrial laser scanner

3D terrestrial laser scanner offers a solution in reconstruction when the original structure of a significant built heritage and national monuments need to be protected, reconstructed or restored. 3D terrestrial laser scanner is capable of accurately scanning the features with complex geometry, which complement and implement the available maps and documentations. The method is particularly suitable for specifying the geometric structure of monuments and assess the condition of their different parts.

Large speed scanning

The advantage of 3D terrestrial laser scanning is that in a few minutes it provides accurate information on areas that are difficult to access or on large areas independent of the time of the day (its usability is not affected by the time of the day). As a result, this is one of the fastest (1 million points/sec scanning speed) and most effective method for digital imaging of features with contoured surfaces and complex geometry.

Exceptional accuracy

During the survey the 3D terrestrial laser scanner generates a point cloud and associate parts of the cloud with colours. As opposed to this, a camera takes only pictures and later, during the processing, generates a point cloud, therefore it is less accurate and detailed. By the means of millions of scanned points, we can make calculations with geometric accuracy and the 3D model of the scanned features can be used for visualisation.

The achievements of 3D technology

The point cloud, generated by the 3D terrestrial laser scanner, is processed by the software of the scanner. The point cloud is used to create various reconstructions and virtual tours. By using 3D terrestrial laser scanner and orthophotos, larger areas or features, landscape forms and built structures can be recorded on site. Owing to the applied technology, models can be spectacularly visualised, and the scanned features can also be analysed, cross-sectioned in any numbers and measured with high precision.