automated system but a large step toward a self-optimizing system. 
Additional degrees of automation and optimization can be added or 
tried experimentally by the simple expedient of modifying the com 
puter programs. In addition to its usefulness as a highly versatile 
stereoplotter, the automated AP-2 is therefore an excellent vehicle 
for further development of automatic mapping techniques. 
ACKNOW LEDGEMENT 
A number of people have made important contributions in the 
design and development of the system described in this paper. In 
particular, the authors wish to acknowledge the contributions of 
Mr. Joseph Diello of RADC, Messrs. W. E. Chapelle and V. C. Kamm 
of Bendix, and Mr. S. J. Friedman and Dr. Gino Parenti of OMI.