A PROPOSAL FOR ESTABLISHMENT OF AN IMAGE ENHANCEMENT AND RECONSTRUCTION FACILITY PHASE I

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A001100030005-2
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 6
• Document Creation Date: December 28, 2016
• Document Release Date: November 26, 2001
• Sequence Number: 5
• Publication Date: February 12, 1969
• Content Type: REQ

Approved-for Release 2002/05/08 : CIA-RDP78B04747A001100030005-2
TECHNICAL PROPOSAL
A PROPOSAL FOR ESTABLISHMENT OF AH
IMAGE ENHANCEMENT AND RECONSTRUCTION FACILITY
PHASE I
STATINTL
Declass Review by NIMA/DOD
Approved For Release 2002/05/08 : CIA-RDP78B04747A001100030005-2
 Approved For Release 2002/05/08 : CIA-RDP78B04747A001100030005-2
SECTION I
During recent years, there has been considerable interest in the maximum
extraction of information from image forming systems, particularly through the
application of information theory to image data.
STATINTL
in this new discipline, both from theoretical and applied points of view. This pro-
posal is presented for the purpose of disclosing the details of a unique image enhance-
ment and reconstruction system developed by over the last five STATINTL
years. The system was developed as an "in house" program, and patent action has
been taken to protect the proprietary nature of the disclosures herein.
This Phase I proposal is submitted as a 12-month effort for the purpose of
providing equipment and services for a digital scanning and recording system. The
effort is divided into two parts, which will be carried out concurrently. Part One
will be concerned with adapting the existing Trichoic Microdensitometer equipment
to a precision raster scan mode configuration, while Part Two will be concerned
with services for the scanning, manipulation, and display of selected imagery to
provide the necessary experience and knowledge for development and adaption of
specialized software for image exploitation.
STATINTL
Approved For Release 2002/05/08 : CIA-RDP78B04747A001100030005-2
 Approved pr Release 2002/05/08 : CIA-RDP78B04747A001100030005-2
SECTION 2
1. Hardware Modification
The hardware portion of this program shall consist of modification of
the Trichoic Microdensitometer for adapting it to a precision raster scan
capability. The conversion shall consist of the addition of a 25-kHz solid
state amplifier for conversion of the transmission analog signal to a density
analog signal, a modification of the X-axis drive system to increase the
scanning speed, the addition of a circulating oil pump and special hydraulic
drive nut to provide constant lubrication to the X-axis drive system, con-
version of the X-axis reversing switches to noncontact switching means,
addition of a 1/4-micron Y-axis step-over control with automatic scan
count and shutdown. The optical system will be modified to provide samp-
ling of 1-micron and 1/2-micron diameter areas using Epiplan 8-power and/
or 16-power lenses.
II. Micro-Analyzer Control and Data Logging System
.This electronic subsystem controls the scanning of the Micro-Analyzer
and records the output density signal in computer-acceptable form. It is
composed of the following units:
1. X-Axis Scan Controller
2. Y-Axis Step-Over Unit
3. Digital Data Logging Unit
The X-Axis Scan Controller employs solid state switches to control the
direction and the stop/start of the X-axis scanning. Input to the unit is either
from manual pushbuttons on the control panel or from adjustable scan limit
sensors on the Micro-Analyzer. In automatic mode, the IVTicro-Analyzer
stage will scan back and forth between the set limits.
Approved For Release 2002/05/08 : CIA-RDP78B04747A001100030005-2
 Approved Eor Release 2002/05/08 : CIA-RDP78BO4747A001100030005-2
The Y-Axis Step-Over Unit controls the Y-axis motion of the Micro-
Analyzer stage. Y-axis motion is incremental and occurs between X-axis
scans, that is, during the X-axis reversal time. The size of each Y-axis
step is manually selectable from 1/4 to 999-3/4 microns in 1/4-micron
increments. The succeeding X-axis scan is delayed until Y step-over is
completed. This unit also terminates scanning after the preset number of
scans (1 to 9999) have been completed. The direction of the Y-axis scan is
selected with a switch on the control panel.
The Digital Data Logging Unit digitally records the output density
signal on a computer-compatible magnetic tape. Signal sampling and 60-Hz
power for the X-axis scan motor are both derived from a crystal-controlled
oscillator. Thus, time between samples can be directly related to distance
without requiring stage position monitoring.
In normal raster scan operation, density samples are temporarily
stored digitally in a core memory during a complete X-axis scan. At the
end of the scan line, the data are then rapidly transferred from core memory
to magnetic tape and recorded as one block. Each tape character is read
immediately after it is recorded and checked for proper parity. If an error
is detected, the tape is reversed to the beginning of the block and the complete
block, stored in the core memory, is re-recorded. The start of the next
X-axis scan is inhibited until this is completed. Should an error be detected
on the second recording, the operator has the option of either terminating at
that point or continuing automatically with the bad block retained. In the
latter case, a counter will indicate the number of bad blocks retained during
a run.
Each sample is recorded as an eight-bit binary number. Controls per-
mit zero offset and gain adjustment so that these eight bits can be set to
cover a selected portion of the overall density range. A decimal display,
ahead of the zero offset and gain adjust, is also provided to indicate the out-
put of the Micro-Analyzer amplifier.
Approved For Release 2002tp5/08 : CIA-RDP78B04747A001100030005-2
 Approved For Release 2002/05/08 : CIA-RDP78B04747AO01100030005-2
DIGITAL DATA LOGGER SPECIFICATIONS
Sample Size:
8 binary bits
Sampling Rates:
10, 25, 50, 100, 250, 500, 1000, 2500, 5000,
10, 000, 25, 000 samples per second.
Samples per Scan:
Up to 8192. Selected with control panel switches.
Tape Format:
(IBM-compatible)
Number of Channels:
Nine
Density:
Methods for Starting Sampling:
800 characters per inch.
8192 characters maximum.
1. Manual:
Pushbutton switch
2. Edge Trigger:
Starts when input density signal crosses
preset level.
3. External:
Methods for Stopping Sampling:
Signal change from zero to + 5 volts
1.
Manual:
Pushbutton switch
2.
Programmed:
Stops after preset number of samples (8192 max.)
3.
External:
Signal change from zero to + 5 volts
4.
Limit:
Automatically stops at 8192 samples
Accuracy of First Sample:
Time between "Start" signal and the first sample is equal to the selected
time between samples ? 3. 5 microseconds. (Example: At sampling rate of 500
samples per second, the first sample will be taken 2000 f 3. 5 microseconds after
the "Start" signal. )
Timing Source Accuracy: t 0. 005%
Approved For Release 2002/05/08 : CIA-RDP78BO4747AO01100030005-2
 Approved For Release 2002/05108 : CIA-RDP78B04747A001100030005-2
Maximum Recording Time (between scans):
0. 15 second (no error)
0. 5 second (with error)
Error Indication:
Each digital sample is checked for proper parity as it is read from memory
and after recording on tape. Detection of an error causes the proper indicator
(Memory or Tape) to be illuminated and also initiates the re-record cycle. Error
indicators are manually reset.
Pushbutton switch causes Tape Mark to be recorded at end of run.
I. System Program Packages Operational on a 360 Model 40
System program packages, operational on a 360 Model 40 system,
will be tailored to the specific needs of the exploitation field. A series of
tests to prove operational capability for specific customer problems will be
conducted throughout the program. The tests shall consist of image digitizing,
computer manipulation, and display of various types of imagery to meet the
requirements of the customer during the 12-month period. The system pro-
gram packages developed or adapted during this period will be included as a
part of the materials to be furnished on the program.
Operator training and instruction manuals for use of the equipment
and program packages will be included.
Approved For Release 2002/05/08 : CIA-RDP78BO4747AO01100030005-2
5