Towards Continuous Monitoring of Architecture. Terrestrial Laser Scanning and Mobile Mapping System for the Diagnostic Phases of the Cultural Heritage

Abstract

Abstract. In recent decades, the significant advances in digital technologies applied to cultural heritage have led to profound transformations in the activities of protection, conservation and enhancement. A current field of experimentation concerns 'rapid mapping' survey techniques with mobile mapping system (MMS). The use of these methodologies is increasingly widespread for the diagnostic and monitoring phases of the architectures. The potential of these techniques are manifold: these systems record, in a short time, a large number of information with a rather high level of accuracy. In particular, the research presented here has studied an 'innovative' Lidar mobile mapping methodology, NavVis VLX, with experimental perspectives, for the survey of the Cripta of the Cathedral of San Matteo in Salerno (Italy).

Integration of Photogrammetry and Portable Mobile Mapping Technology for 3d Modeling of Cultural Heritage Sites: The Case Study of the Bziza Temple

“…The absence of large planar surfaces in the study area do not allow the common quantitative estimation of the noise level, usually performed by fitting planar patches on regular walls or floors and computing the distances between actual points and the fitted surface (Maset et al, 2022). However, for a deeper assessment of the noise that affects the MMS point cloud and the consequent lower level of detail, the surface roughness was estimated with CloudCompare software on the best preserved wall of the temple, following (Campi et al, 2022). The roughness value can be considered a local measure of the noise, since it consists in the distance between a point and the best fitting plane computed on its neighbors.…”

“…Furthermore, thanks to the ease of use and the (almost) automatic data processing workflow, portable MMSs can be profitably employed even by nonexpert surveyors. SLAM-based mapping technology represents today the most effective solution also for the 3D mapping of underground built heritage (Di Stefano et al, 2021) and allows to significantly speed up the survey activities, which is of utmost importance for heritage and archaeological sites with consistent flow of visitors (Campi et al, 2022).…”

Multi-Sensor Geomatic Techniques for the 3D Documentation and Virtual Repositioning of Elements of the Church of S. Miguel (Jaén, Spain)

“…Fangi [33] defined spherical photogrammetry (SP) as the use of these images for photogrammetric purposes. The efficiency of data acquisition is also improved by using real-time capture sensors, such as Mobile Mapping Systems (MMSs) [34][35][36][37][38][39][40][41][42], which are based on Simultaneous Localization and Mapping (SLAM). These systems usually compute their trajectory and orientation using SLAM (visual-SLAM or LiDAR-SLAM), supported by Global Navigation Satellite Systems (GNSS) (outdoor surveys) and Inertial Navigation System (INSs).…”

Preliminary Survey of Historic Buildings With Wearable Mobile Mapping Systems and Uav Photogrammetry

“…Di Filippo et al (2018) show the effective use of the MMS Zeb Revo made by Geoslam to rapidly survey a damaged structure where traditional TLS survey operations would have been hazardous. Campi et al (2022) presented a CH survey comparing a TLS approach to using the NavVis VLX MMS, highlighting the rapid survey capabilities of the latter as ideal for continuous monitoring of the architecture. At the same time, other authors proposed accuracy assessment tests of different commercial MMS solutions (Tucci et al, 2018;Sammartano & Spanò, 2018), finding great potential in the efficiency and productiveness of the acquisition phase, well suited for 1:100 -1:200 representation scale requirements.…”