Reconstruction of partially destroyed structures using digital methods

Abstract. A relevant approach to the renovation of a small town is to carefully integrate the existing cultural and historical heritage sites into the modern urban environment. For this purpose it is necessary to have digital duplicates of these objects. Photogrammetry is a relatively inexpensive and practically universal method of creating three-dimensional models of architectural objects and their measurement plans. The paper presents the results of modelling a historical architectural object using modern images and images obtained in different time periods. The modern images were obtained by a combination of drone and ground-based imagery of both exterior facades and interior spaces. The modern model and old drawings were used to find and reconstruct the interior elements lost during the building’s operation. Separate models of the lost elements were built from the archive images, and then these models were integrated into the overall model. The accuracy of the built digital model meets the requirements for the measurement drawings for the reconstruction project.