Application of UAV photogrammetry technology in the process of architectural heritage preservation

This paper introduces the application of UAV photogrammetry in different stages of architectural heritage protection, such as the investigation of the current situation around architectural heritage, the acquisition of site information, and the architectural heritage revitalization design. The collected data is processed not only to provide reference data support for cultural relics conservation projects, but also as a reference for long- term heritage monitoring in archives. With the continuous development of the field of UAV technology, the working methods and ideas introduced in this paper will become an important scientific and technological protection means in the protection of architectural heritage.