This paper depicts a case study that shows an open-source Terrestrial Laser Scanner (TLS) for use on the virtualization of simple yet precise geometrical entities in AEC classrooms. For bringing this technology to classrooms, TLS was developed. The physical model built using digital fabrication, its connectivity established accessible, affordable, sensors and actuators representation developed ...

Automatic registration of terrestrial laser scanning point clouds is a crucial but unresolved topic that is of great interest in many domains. This study combines terrestrial laser scanner with a smartphone for the coarse registration of leveled point clouds with small roll and pitch angles and height differences, which is a novel sensor combination mode for terrestrial laser scanning. The appr...

During the last years terrestrial laser scanning became a standard method of data acquisition for various applications in close range domain, like industrial production, forest inventories, plant engineering and construction, car navigation and – one of the most important fields – the recording and modelling of buildings. To use laser scanning data in an adequate way, a quality assessment of th...

Terrestrial laser scanners, such as the Cyrax 2500 and its predecessor the 2400, use pulsed laser ranging and rotating mirrors to accurately measure dense sets of three-dimensional co-ordinates of entire surfaces. Range is observed by measuring the two-way time of flight (TOF) of the reflected laser pulse. The reflectorless nature of the rangefinder raises the possibility of range errors due to...

Laser scanning, including both the airborne and terrestrial laser scanning, is one of the most interesting and potential 3D data acquisition and monitoring techniques, which can support future studies of real estate and environmental economic. Vast data sets, even covering whole countries, challenge existing manners of proceeding. Existing laser data can be used for multidisciplinary tasks, suc...

A compact solution for the accurate and automated collection of field data in forests has long been anticipated, and tremendous efforts have been made by applying various remote sensing technologies. The employment of advanced techniques, such as the smartphone-based relascope, terrestrial and mobile photogrammetry, and laser scanning, have led to steady progress, thus steering their applicatio...

Terrestrial laser scanners (TLS) are used for a variety of applications, e.g., surveying, forestry, cultural heritage preservation, mining, topographic mapping, urban planning, forensics etc. This technology has made huge shift in 3D spatial data collection due to much faster speed compared other techniques. In the absence guiding principles positioning TLS relative an object, surveyors collect...

The demand for high-definition surveys within cultural heritage projects represents one of the main factors which promoted the use of laser scanning technology and photogrammetry. By measuring millions of points within relatively short time periods, terrestrial laser scanners allow to derive complete and detailed 3D models of real objects from acquired point clouds. Despite the wide spread of T...

Terrestrial laser scanners can rapidly acquire thousands of 3D points over a structure. The individual scan points are of relatively low precision (±2mm – ±50mm) depending on the instrument type. However, combining the dense 3D point data with judicious modelling strategies can produce a very precise surface model. A surface model has advantages for structural deformation monitoring where defle...