DEAR JOHN:

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B05171A000500020021-0
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 6
• Document Creation Date: December 28, 2016
• Document Release Date: September 21, 2005
• Sequence Number: 21
• Publication Date: May 29, 1970
• Content Type: LETTER

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May 29, 1970
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Enclosed please find three (3) copies of
dated May 28, 1970.
I'2201201-TPR-1
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PSC/c
Enclosures
Sincerely,
THIS DOCUMENT IS UNCLASSIFIED
WHEN SEPARATED FROM CLASSIFIED
ATTACHMENTS.
Declassification Review by NGA/DoD
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May 28, 1970
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To:
From:
Subject:
Reference:
Technical Progress Report No. 1
This is the first monthly report on Contract No.
(5500-6076) 70R, covering the period from 20 April 1970 to
19 May 1970. The primary aspects of the effort covered during
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this period of time include activity at the
in support of the in-house laboratory program and
activation of the research and development program at
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on the microscope image processing
system. Accomplishments during this first. month of the program
have included attainment of the objectives of the initial phase
of the laboratory program, where the holographic interlerometer
and the coherent optical processor have been set-up and
activated. The initial objectives of fabricating hologram
detection filters and performing detection filtering on the
coherent processor, with good detection characteristics, have
been attained. The research and development effort to implement
image processing on the microscope has been initiated with
the equipment received and two microscope configurations for
the first experiments designed and set-up. During the coming
month we will conclude the initial phase of the holographic
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system application and initiate image processing activity on
the partially coherent system (Beck bench). We will also be
performing initial tests on the microscope processor using.
direct access to MTF control of the imaging optics. This
initial experiment is directed to provide contrast and frequency
controls as discussed in the proposal. It will be evaluated
and other experiments will be initiated, as discussed below.
Laboratory Program
Delivered with this monthly progress report is a carbon
copy of the laboratory notebook used by and
as a record of activity at the customers facility.
The carbon copy is complete except for original photographs
that are placed on the master pages. The details of experiments,
namely film output. from the interferometer and coherent processor,
exposure times used, etc. are included in the contract monitors
notebook.
The primary objectives of the first phase of the laboratory
program were obtained during the first month. The following
is a summary of these accomplishments:
l.. Set-up of holographic interferometer
2. Implementation of near field holography
3. Set-up of coherent image processor
4. Target fabrication for demonstration
5. Critical systems alignment
6. Filter fabrication for target recognition
7. Completion of interferometer refinements
and demonstration of holographic target
recognition
8. Record of results
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The systems and some results are. shown in the following
illustrations. Figure 1 is a photograph of the coherent image
processor used for the application of holographic filters.
The laser source is at the far end, with the output viewer at
the near end. Up to this time, we have used the system for
detection filtering and are presently in the process of an
image restoration demonstration. Figure 2 shows the holographic
interferometer set-up with the laser source positioned to
the left rear of the isolation table, and the holographic
output at the right rear. A detailed discussion of these
systems will be available in the first quarterly report.
System details are presently available in the lab notebook.
Data demonstrating several examples of target recognition
are given below. These illustrations show a special target
used for the recognition demonstration in Figure 3, with
prints of a holographic.recognition filter and a detection
signal output given in Figure 4. Figure 4(a) is a print
of a holographic detection filter for the large arrow in
the target positioned at the intersection of the second
column and 5th row. The detected output is shown in Figure 4(b)
as the brightest point. The brightness of the point is
directly related to the correlation between target and filter.
The other outputs show lower correlations, namely that they
differ from the desired target to which the filter is matched.
The detected output appears at the location of the target
in the format and therefore locates the target position as
well as its "likenesq". Other demonstrations have been performed
and are being recorded.
To conclude this phase of the program we will collect
illustrations that can be used as briefing material and for
laboratory demonstrations. We will also gather final data
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to demonstrate system utility in the area of image processing.
These final objectives will be met during the first weeks of
this coming month. A tentative schedule for briefing these
initial accomplishments is set for the week of July 6 at the
customers facility.
During the past month personnel
conducted a trip each week to the customers facility with a
total of 11 man-days applied to the laboratory effort. This
schedule is intentionally higher than the projected average
schedule in order to gain initial emphasis required for
laboratory system activation, and to gain timely results.
Microscope Processor
The laboratory program to develop microscope
processing capabilities was activated during this first month.
Two Spindler & Hoyer micro-optical benches were received and
one has been set-up as a microscope with capability for special
design condenser assemblies. This set-up is shown in Figure 5.
The condenser consists of a folded optical path designed to
project a circular incoherent source onto the pupil of the
microscope objective. The source diameter is controllable,
and the objective of the set-up is to analyze microscope MTk'
controls during viewing. Reference to our proposal P-70-5
dated February 6, 1970, p 36 illustrates the MTF response
related to the controls designed into this system.
We have also initiated a second micro-optical set-up on
the optical bench to study the process of mixing coherent and
incoherent illuminants. Image processing will be performed
along the coherent source axis, and incoherent light added
to provide the continuous tone quality needed in an operational
instrument. A photogrpah of the set-up is shown in Figure 6.
During the coming month we will analyze the potential
applications of these systems. We will also initiate optical
processing using phase filters that will not reduce illumination
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levels but will provide noise filtration. Because of our
involvement with several microscope configurations we recommend
that the second Spindler & Hoyer micro-optical bench be
temporarily retained at so that the microscope
developments can be more efficiently set-up and evaluated.
PSC/c
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