3) Use of multi-response sensors and integrators (including all parts 
of the electromagnetic spectrum) for the identification of 
materials or objects. i". ..'it may be possible to differentiate 
between various materials and/or variations of, or within, the 
material itself solely by comparing the reflectance or emissivity 
properties at different wave lengths » s +" (U, S, Army Engineer 
Waterways Experiment Station, Corps of Engineers, written 
communication, 1959.) 
  
4) Miniaturization of all components of photointerpretation systems. 
"There is a trend toward the use of smaller size film in aerial 
photography. This has been prompted both by the need to have smaller 
cameras in today's and tomorrow's aircraft, and because storage of 
large size films becomes a more pressing problem as more photography 
is flown. The resolving power of modern emulsions makes smaller 
sizes possible without loss of detail. 70mm film seems to be coming 
into its own." (R. Coakley, written communication, 1959, ) 
5) New or improved films primarily those of finer "grain", and those 
having multi-response characteristics such as color. "Research in 
the Chemistry Department centering in the Division of Analytical 
Chemistry gives some promise of registration media whose resolution 
and magnification potential are limited only by molecular size. 
Magnification of 10,000 diameters and more are theoretically 
possible with such a registration medium." (C. E. Olson, written 
communication, 1959.) 
6) Improved methods for the storage and retrieval of photographs and 
information obtained from photographs, "Another problem closely 
related to photointerpretation is the storage and retrieval of 
aerial photographs. The Eastman Kodak Company recently introduced 
the Minicard System for information handling, This system is now 
being extended to the field of aerial photographs.” (R. Coakley, 
written communication, 1959.) 
7) Electronic systems for extracting and evaluating data from 
photography. "Research . » os » shows some possibility of making 
the photo-interpreter obsolete. Biological computers utilizing 
mammalian nerve tissue are under development and seem to be 
self-organizing systems which are foolproof intelligence systems 
in that they have no program which can be 'cracked'. The potential 
ability of such computers to pick out desired features despite 
camouflage seems enormous. The possibility that a high-speed 
automatic photointerpretation device is forthcoming does not seem 
so far-fetched in view of this development." (C, E, Olson, written 
communication, 1959.) 
  
tan 
These techniques require equipment not generally cons idered to be 
associated with photointerpretation. Devices such as spectrophotometers to 
measure response characteristics, devices for "photographing" the far reaches 
of the electromagnetic spectrum, and devices, either video or projection, for 
viewing miniature photographs may soon be common tools for the interpreter. 
o um un mq O Hh Hd c c 
1/ Ray, Rs Go, and Fischer, W. A., 1960, Quantitative Photography--A geologic 
research tools Photogram. Eng., Ve 26, no. 1, Po 143-150.