THIRTEENTH INTERNATIONAL CONGRESS OF PHOTOGRAMMETRY 
BRITISH NATIONAL REPORT 
  
January lst 1972 to December 31st 1975 
  
INTRODUCTION 
This period has been one of consolidation for British photogrammetry. It was 
marked in 1973 by the coming-of-age of the Photogrammetric Society (88)* and, 
although this was not a period of conspicuous innovation, healthy growth has 
continued. Land surveying has bencfited from further expansion in the use of 
photogrammetry while non-topographic applications have continued to increase 
in quantity, variety and importance: the use of photogrammetry to control the 
construction of large marine structures including production platforms for 
North Sea oil exploitation (111, 112), and the award of the Combined Royal 
Colleges Medal for the outstanding contribution of photography in the service of 
medicine (67), may be cited as two examples of this trend. The new British 
plotter, the CP1, which was shown at the Twelfth Congress, has now been sold 
in a number of countries. The new development in plotters during this period 
has come at the other end of the scale, being an instrument for plotting from 
stereo electron micrographs (24). The greatest growth has occurred in the 
field of remote sensing (84). The applications of these techniques are so varied 
and so remote from the main stream of traditional photogrammetry that this 
report cannot do justice to all those who are developing them. Accordingly a 
brief section only is included here, referring interested readers to sources of 
further information. 
This report has been compiled from information received from a large number 
of organisations and individuals. Thanks are due to all those who have contributed, 
and apologies are offered to any whose work has inadvertently been omitted. 
Throughout the text, numbers thus (88) refer to the Bibliography (Section 6).