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The Raytheon Company and the Naval Research Laboratory have developed 
an interactive digital image-processing and interpretation system for 
use with synthetic-aperture side-looking radar (SLAR) (Bay, Bright, 
and Kerr, 1975). Images can be optically compressed on an optical 
correlator. By means of a false-color CRT display, compressed images 
are interpreted in an interactive mode. Raytheon has also produced 
a computer program to perform digital rectification of SLAR imagery 
(Greve and Cooney, 1974). 
  
  
Cartwright Aerial Surveys reports highly efficient procedures resulting 
from the use of automated electronic dodging and scanning techniques 
in the photographic laboratory (Cartwright, 1974). The time required 
for handling photographs was reduced to a fraction of that using con- 
ventional techniques. 
  
At Bendix Research Laboratories, a new automated photogrammetric system 
(Symour and Whiteside, 1974) has been designed, consisting of a computer- 
controlled two-stage precision-measurement system, optical/mechanical 
components, a CRT terminal for entry and display of data, and large 
disks for mass storage. The system is planned as an easily programmable 
plotter for highest accuracy from images of any geometry. 
  
A Wild A1O plotter equipped for automatic digitization of X, Y, Z, 
with output on paper tape has been used successfully by K. B. Wood 
Associates (Wood, Gross, and MacPherson, 197h). 
The University of Rochester has developed two systems for the rapid 
generation of contours from ideal pairs of laboratory close-range objects. 
One system may use either coherent or incoherent illumination and produces 
dark contours on a structure-filled background. The second system pro- 
duces bright contours on a dark field (Wertheimer and Givens, 1974). 
  
The development of spatial signatures by the analysis of the Fraunhofer 
diffraction patterns of Landsat images is reported by the Itek Company. 
These signatures are used to classify mountainous, urban, and cultivated 
areas (Corbett, 1973). 
A joint project of the Brooklyn Polytechnic Institute and the firm of 
Lockwood, Kessler and Bartlett resulted in the development of a system 
for automating design of sanitary-sewer networks. The system utilizes 
special terrain information from two-axis digitized orthophotos and 
three-axis digitized photogrammetric models (Soehngen, De Cicco, and 
Baker, 1973). 
  
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