PROBLEMS IN PHOTOGRAMMETRIC SURVEYING OF DOMES 
by 
Walter S. Ferri - (Officine Galileo - Florence) 
Mario Fondelli - (University of Florence) 
ABSTRACT 
The problems of the survey of close range objects, particularly as far 
as the survey of architectural works is concerned, are here summarized. 
The use of electronic computers and of the most advanced techniques 
for the spectral statistical research in the analysis of the photogrammetric 
information allows to reach a deep knowledge of the structure of the 
works in question. 
The traditional operational method was necessarily modified, to suit 
it to the following electronic processing. On this purpose a critical 
analysis of the camera to be employed for these surveys is made as 
regards to the selection of stations and to the taking conditions. 
The use of orthophotography is studied in order to supply more complete 
details about painted surfaces. 
The results obtained through the survey carried out by Galileo-Santoni 
equipment of two domes being part of architectural monuments of the 
Italian Renaissance have been described as example.