Laser Scanning for Bim and Results Visualization Using Vr

Abstract

<p><strong>Abstract.</strong> Virtual Reality (VR) is a highly topical subject in many branches of science and industry. Thanks to the rapid development and advancement of computer technology in recent years, it can now be used to a large extent, with more detail to show and is now more affordable than before. The use of virtual reality is currently devoted to many disciplines and it can be expected that its popularity will grow progressively over the next few years. The Laboratory of Photogrammetry at the Czech Technical University in Prague is also interested in VR and focuses mainly on documentation and visualization of historical buildings and objects. Our opinion is that in the field of virtual reality there is great potential and extensive possibilities. 3D models of historical objects, primarily created by photogrammetric IBRM technology (image based modelling and rendering) or by laser scanning, gain a completely different perspective in VR. In general, most of the newly designed buildings are now being implemented into BIM. For certain projects, historical buildings or constructions should also have implemented into BIM. As a basic input into BIM, an accurate 3D spatial documentation of the condition is needed with special accent to additional information like engineering networks, materials, etc. Creating BIM is one thing, visualizing a model is another. The historical object is irregular and it is difficult to create its simplified form as the CAD model; it is much easier with modern buildings. The question is always the appropriate type of visualization, where virtual reality can be a very useful technology. So-called game engines such as Unreal engine or Unity are used to create a virtual world. These are highly sophisticated tools that make it possible to create a suitable environment, where you can place created models and then view and analyse them with the help of VR glasses. In our contribution, we would like to show an example of a technology line that allows you to convert an object documented by laser scanning into virtual reality. An older industrial building prepared for future reconstruction was chosen as a case study. This object was scanned by a laser scanner, a 3D model was created and material types and engineering networks were added into the model.</p>

Use of Modern Technologies for the Conservation of Historical Heritage in Water Management

“…This type of measurements performed using the TLS technique, namely MMS are the first of its kind in Romania, being for the first time when applied for this field, pioneering this way in the field of hydrotechnics in Romania, especially for the Banat Water Basin Administration who manages through this scanning work in order to create a digital data base, which will be used for achieving some projects regarding virtual reality (VR-Virtual Reality) namely achieving BIM (building information modelling) projects [55][56][57][58][59], considering the fact that before starting the rehabilitation works of Sânmihaiu Român Hydro technical Node, two scans were performed using the Leica C10 terrestrial laser scanner as well as a mobile scan using the Leica Pegasus Backpack scanner. There will also be a 3D scan with the Leica Pegasus Backpack mobile scanner at the end of the rehabilitation works, for the revitalization of the Bega River and for tourist navigation, including by capitalizing on tourist locations thus creating unlimited opportunities for development of the area with at least two advantages to complete two European projects already underway: the first project being the one through which the bicycle track was made along the Bega canal, a work in which the authors participated for the topographic surveys on a length of 36 km and the realization of the compensations, respectively the situation plans.…”

Review on the Research and Applications of TLS in Ground Surface and Constructions Deformation Monitoring

“…Taking the deformation monitoring of building components as an example, once the point cloud data of building components are obtained, the point cloud data can be input into the VR/AR system for visualization, where the point cloud data of different periods can be compared and the deformation differences between them could be viewed. In this way, engineers can visualize and identify geometric quality problems in the field after obtaining point cloud data, and immediately take necessary measures to solve the problem [ 105 ]. Future research needs to develop methods for real-time visualization and processing of point cloud data for architectural applications, which can be combined with VR and AR technologies.…”

Earthen Jewish Architecture of Southern Morocco: Documentation of Unfired Brick Synagogues and Mellahs in the Drâa-Tafilalet Region

“…Electronization, digitization, and other modern methods of computer technology and visualization, such as virtual reality (VR), computer vision [17,18], and BIM (Building Information Modeling) [18,19], are increasingly entering the care of monuments. Classic documentation becomes a multisensory technology [15].…”