Laser vs. Photogrammetry: Documenting the Church in Mobile Mode

Based on the field work carried out for the documentation of the sacred site, laser scanning of the church was carried out using the FJD Trion S1 “handheld” device. In addition, a geodetic warp in the state coordinate system was established.

In parallel, a ground-based photogrammetric survey was carried out using a camera built into a Sanding Gemini T14 GNSS receiver, which made it possible to obtain high-resolution images with internal orientation parameters from which 3D models and geometric analyses will be developed. Both methods - laser scanning and photogrammetry - make it possible to accurately represent the geometry of the surveyed object and their results will be compared to determine their accuracy, efficiency and applicability to architectural and surveying documentation.

Comparative results of the two technologies will be made available soon, and for the moment we present a visualization of the developed results. Details of the differences in accuracy, detail and potential limitations of each method will be an important part of the analyses.