(Wydawnictwa AGH, 2025) Rzonca, Antoni ; Twardowski, Mariusz
This paper presents the functionality and research possibilities of an application that is based on two concepts: the use of photogrammetric analysis for LiDAR data processing (lidargrammetry), and the assignments of identifiers to cloud points in order to be able to return to the original points after processing without data loss and redundant processing. The research tool has, thus far, been developed for the implementation of two distinct LiDAR data-enhancement processes. The initial approach involves the altimetric transformation of the LiDAR data (a process that is founded on the principles of stereo model deformation theory), and the second process employs lidargrammetry for the purpose of 3D local point-cloud corrections, global changes, or non-rigid transformation. This is achieved by applying blocks of lidargrams and their subsequent matching and adjustments.
The paper presents a possibility of usage of close-range photogrammetry and 3D laser scanning as integrated technological process. The approach was shown by solving the test model -considered the representative field material. As a model there was used the monument of Queen Anna Jagiellonka, established in renaissance period in Wawel King's Catedral in Cracow, Poland. Developing of the technology required arranging two geometrical filters for point cloud preparation. Point clouds were used as geometrical information for orthorectification process. The obtained result positively verified author's hypothesis, that the integration of scanning and photogrammetric data is an alternative for classical orthophotogrammetric technology. Such a possibility is an effect of laser scanning technology potential.
