DECISION ON GOAL FOR FUTURE WORK ON P.I. PERFORMANCE RESEARCH STUDY

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A001800020053-4
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: November 8, 2006
• Sequence Number: 53
• Publication Date: October 21, 1964
• Content Type: MEMO

Approved For Release 2006/11/09: CIA-RDP78BO4770A001800020053-4
October 21p 1964
TO:
FROM:
SUBJECT: Decision on Goal for Future Work on P.I.
Performance Research Study
In response to your request of 4 August 1964, we are presently performing a
study to specify PI performance as a function of ground resolution (over the 10
to 72 inch range of nadir.j high sun angle, black and white, non-stereo photography).
To obtain data for you as quickly as possible, we have restricted our targets (keys)
to aircraft features such as wing form, number of engines, landing gear configuration,
etc. Our selection of this key was based on the relatively large variety of aircraft
types and replication of specific aircraft in the available photography., We plan
to complete.this study in early November and at that time present a briefing and
technical report on the results. Following this effort, we plan to repeat the
experiment with two additional keys: ships and electronics. Our goal is to
complete this task by the end of the year and again give a briefing and technical-.
report on the results.
While we are performing the effort described above, we would like to collect
photography for research to be performed after 1 January, 1965. Since the type of
scenes photographed and the method and conditions of photography are dictated by
the specific goals of the research, it is now necessary to establish the goals for
future work.
During April, 1964,1 and I?discussedTAT
and considered in great detail a large number o factors a ec ng the performance
of photointerpreters (see attached list). This group also discussed the topic with
S you andl As a result of these discussions, it was then decided and STAT
indicated in our proposal to study, over a period of two years, three factors:
(1) ground resolution (2) stereo vs. mono, and (3) color vs. black and white.
Since the formation of these initial plans, your priority rating of questions
in need of answers has changed and, very likely,'will continue to change.
However, restrictions imposed on this work by the time-consumption of obtaining
material, making gems, developing performance measures, testing and response analysis
and reporting, require that we now establish our research goals for most of 1965.
Therefore, will you please review your requirements and describe to me, before
6 November, if possible, and is as much detail as possible, and preferably in order
of importance (priority), those factors affecting PI performance which you want us
to examine in 1965?.
STAT
)QR-C.I_l1 _
 Approved For Release 2006/11/09: CIA-RDP78B04770A001800020053-4
LIST OF SOME FACTORS AFFECTING PI PERFORMANCE
(Taken from Proposdl, April 64)
is Ground Resolution
2. Stereo vs. Mono
3. Color vs. Black and White
4. Type of Stereo
--equal quality pairs
--mixed, quality pairs
--black and white pairs
--color pairs
--color/black & white pairs
--angle of photography
.5. Contrast Reduction due to Haze
? 6. Spread Function Shape
--symmetrical
--non-symmetrical
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
4 9?
STAT
Granularity
Sun Altitude
Sun Azimuth
Obliquity
Response Perseveration
Real Color vs. False Color
Viewing Equipment/Scale
Viewing Time
Searching
Collateral Information
Scene Change Detection
Season/Terrain
'Individual Differences
Approved For Release 2006/11/09 - ('IA RnP7RRna770.4nn1800929953-4