DEAR MR.(Sanitized)

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A000100070019-4
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 5
• Document Creation Date: December 28, 2016
• Document Release Date: July 20, 2000
• Sequence Number: 19
• Publication Date: November 13, 1962
• Content Type: LETTER

Approved For Release 2001/07/3
25X1A
13 November 19 62
Please Reference:
A51-62-2220
Dea
ryd
25X1A Enclosed you will find three copies of the 23rd Monthly Progress Report
on Contra Task Order No. 1, for the development of an Image
Enhancement Instrument.
Very truly yours ,
W WD:
Enclosures-
Declass Review, NIMA/DoD
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 Approved For Release 2001/07/30 : CIA-RDP78BO4747AOGW0070019-4
23rd MONTHLY PROGRESS REPORT
25X1A Image Enhancement Program
Contract Task Order No. 1
4 October to 4 November, 1962
During the month of October, the following tasks were accomplished:
I . The light regulating feedback loop was assembled, in breadboard
form, and applied to the system.
2. Improvements were made in the modulated light source electrical
system; the utilization of better voltage regulation for the CRT improved the
stability of the light spot with regard to image motion at the spot mask.
3. The moving spot mechanical system for the modulated light source
was modified to permit more accurate and careful adjustment.
4. The CRT utilized in the modulated light source proved defective,
and was replaced with a new unit.
Numerous tests were performed in an attempt to produce an output
image of constant intensity, free of banding and streaking. These tests
suggested a rearrangement of the positioning of the optical pickup for the light
regulating feedback loop, and other adjustments and refinements, but success
has not been achieved. The exact nature of the reasons that the output image
is not satisfactory is still undetermined.
Following these disappointing results, the decision has been made to
utilize a high resolution cathode
of the tube torprthe oducep heiformat, uaind ancamera
conventional raster deflection to photograph the face of the tube.
This approach is not potentially as superior as that using the rocking
mirrbr for the output scan, nor is it amenable to the packaging of the overall
system. However, it will permit
of the enhancement techniques that have been
quality to permit an assessment
incorporated in the laboratory system.
It is planned that this new approach will be in operation during the
latter part of November.
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 Approved For Release 2001/07/30: CIA-RDP78B04747A00 4 0070019-4
Vur ROUGH DRAFT
24th MONTHLY PROGRESS REPORT
Image Enhancement Instrument
Contra Task Order No. 1
4 November to 1 December, 1962
This report, in addition to the usual enumeration of accomplishments
of the reporting period, is intended to summarize the status of the project and the
recommended plan of action for the remainder of the program. Attached to this report
is a summary of current financial status, together with our estimate of the costs
expected to be incurred during the completion of the project along the lines described
below.
During November, the cathode ray tube output image dsplay was incorporated
in the laboratory setup and placed in operation, utilizing laboratory instrumentation
and components borrowed from other projects in order to expedite its early reduction
to practice. The quality of the output raster is very much improved, and, within the
resolution limits imposed by the cathode ray tube, it now appears that this approach will
be useful in demonstrating the performance capability of the enhancement instrument.
The present arrangement utilizes a 5 CEP 15 cathode ray tube with 0.002 inch diameter
spot, with the recording accomplished by means of a Polaroid oscilloscope camera.
Results are of sufficient quality to warrant the refinement of this system to further improve
the resolution, raster uniformity, and gray scale rendition.
It is recommended that these refinements be accomplished, the necessary
rrently spread about
suba m?bg 0b6'f'68WWI
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the laboratory be installed in the console, and delivered
These steps are described in more detail below. This
approach to the completion of the program will result incblivery to the
recommended
Government of an experimental image nhancement device which will serve as a valuable
research tool in assessment of the various enhancement techniques which are incorporated
in the instrument. In particular, this equipment will contain the only known embodiment
of area scan filtering. As an experimental tool, its most valuable use may be in the
formulation of requirements and g design techniques which may be used for future efforts
relating to image enhancement instrumentation. The final instrument to be delivered
under this project will incorporate the cathode ray tube output display, and a camera for
the recording of positive prints or transparencies of the enhanced image. The cathode
ray tube and associated circuitry will be attached to the console in the space formerly
reserved for the projector.
The proposed program for completion of this project is divided into three
parts, as described below:
Phase A - Continuation of the laboratory experimentation and circuit development work.
This phase will be completed by 11 Jan 1963. During this time the gray scale rendition
of the present cathode ray tube will be investigated, and the not necessary compensation
circuits constructed and incorporated in the system. Better deflection voltage generators
be developed to replace the current mechanically driven function generator borrowed
will
from another project. Noise and lick up of stray signals will be reduced by incorporation
of better filtering and shielding, as required. Continual testing and evaluation will be
underlen to he k the designs as they are developed.
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Phase B - Packaging for Delivery. Completion of this phase is estimated on 2_~-
February 1963. During this phase, the circuits will be constructed in final form and all
elements of the laboratory setup inserted in the console. This task will require some
re-working of the console in order to accommodate the different approach, the usual
amount of cutting and fitting, and the wiring together of the various parts of the system. It
will be necessary to purchase the following items: High resolution cathode ray tube,
deflection yokes, cathode ray tube shold, deflection circuit power transistors,
oscilloscope (or other) camera with Polaroid back, focus anode power supply, and
miscellaneous electronic parts for the waveform generators and other portions of the system
which may require modification. Because of the extensive testing required, there is always
the danger of breakdown of a key element of the system, introducing additional delay
and expense pursuant to its correction.
F,~ase C - Preparation of documentation (Operations Manual and Final Engineering Report)
Completion of this phase is estimated on 30 March 1963. Inasmuch as the
documentation of the achievements on this program may be of importance equal to
the equipment itself, it is recommended that the final engineering report be prepared
substantially as a planned, i.e., complete in every detail which may prove of value to
future efforts. The operations manual, however, may be abbreviated to contain only
those items necessary to the correct operation of the instrument to be delivered. A study
of both documents, by whoever is to operate the instrument, should achieve the same
goal as the more extensive operations manual which was originally contemplated.
The efforts and expenditures necessary to the completion of these phases
are outlined in the attachment to this report.
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