In recent years, with the development of modern cities, various engineering
buildings have higher and higher requirements for deformation monitoring accuracy,
the original ground photogrammetry can no longer meet the requirements of modern
urban buildings, digital cameras and computer software and hardware development,
has brought the new development of photogrammetry technology Digital close-range
photogrammetry, with its characteristics of high precision, real-time and non-contact,
has become one of the important means of modern deformation monitoring. The
application and precision analysis of photogrammetry in deformation monitoring will
be briefly described below.