This paper presents a comprehensive workflow for data acquisition using the Leica BLK360 3D laser scanning technology, with a particular focus on the advantages of performing real-time registration directly in the field through the Cyclone Field 360 application. The primary objective of this study is the documentation and long-term preservation of the St. Nicholas Church in Brașov, Romania, an important heritage monument with significant cultural and historical value. The methodology involved capturing high-resolution 3D scans of the building, which were subsequently processed in the Leica Cyclone Register 360 Plus software. Georeferencing was carried out by integrating three black-and-white targets, whose precise coordinates were determined with the Leica GS07 GNSS RTK solution. This integration of laser scanning and GNSS technologies ensured both high spatial accuracy and global positioning reliability. The main outcome of the project is a georeferenced point cloud that provides a robust basis for generating accurate 2D architectural drawings as well as for constructing a detailed 3D digital model of the monument. Such deliverables are essential for heritage conservation efforts, enabling accurate documentation, condition assessment, restoration planning, and future monitoring of structural changes. By combining advanced 3D laser scanning with GNSS georeferencing, this workflow demonstrates a highly efficient and precise approach to cultural heritage documentation. Beyond its application to the St. Nicholas Church, the methodology can serve as a reference model for similar projects aiming to safeguard and digitally preserve architectural monuments.

Terestrial laser scanning, 3D, GNSS, Georeferencing, Cyclone Register 360

geodesy engineering

Presentation: poster