STATUS OF MICRO-D INTERIM SOFTWARE SYSTEM

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04767A000300010013-2
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 3
• Document Creation Date: December 28, 2016
• Document Release Date: November 29, 2004
• Sequence Number: 13
• Publication Date: January 29, 1970
• Content Type: MF

Approved For Release 2005/02/17 : CIA-RDP78BO4767AOO ,00010013-2
TSSG/APSD/ISAD-015/70
29 January 1970
25X1A
25X1A
25X1A
MEMORANDUM FOR: Chief, Applied Photo Science Division, TSSG NPIC r._Z11
ATTENTION Chief, Image Evaluation Branch, APSD/TSSG/NPIC
THROUGH Chief, Image & System Analysis Branch, APSD/TSSG/NPIC I.1
SUBJECT Status of Micro-D Interim Software System
1. The following programs which were last run on 3-4 December 1969
are currently considered operational without reservations.
Translator Program: Reformats tape produced by micro-densitometer.
"Translates" the words into 494 Univac
FORTRAN readable words.
Exposure Table Generator Program: Provides a table of values
to be used in converting density to log
exposure. Input is scan of step wedge
characteristic of the mission. Output is
a 300 place table of exposure values used
in table look-up method by other programs.
Granularity Program: Makes a statistical study of repres
area of film (evenly exposed) to det
the granularity of that fil
entative
ermine
m. Granularity
is generally accepted as the standard devia-
tion in density. Input are the scans made
of an area of film translated and stored on
magnetic tape. Output is a printed summary
of the statistical analysis performed.
2.
However
The
the
following program was considered operational in March
'
1969.
resolve
and
operator
s manual is currently under revision by AID
clarify operating ambiguities.
to
Sensitometric Program: Processes data from step wedges to
determine sensitometric characteristics of
the film. Required inputs on punched cards
are densitometer calibration data and density
measurements from the step wedge to be analyzed
' Go4rngrading acid
declansiiicati' o
DECLASS REVIEW BY N.GA / DoD
Approved For Release 2005/02/17 CIA-RDP78BO4767A000300010013-2
 Approved For Release 2005/02/17 : CIA-RDP78BO4767AOW00010013-2
TSSG/APSD/ISAB-015/70
SUBJECT: Status of Micro-D Interim Software System.
The values calculated for each wedge are
BSPEED, CSPEED, RSPEED, GAM.MA, BAR G
(average gradient), SCALE (log E range
between half-gamma points in the toe and
shoulder of the D log E curve).
3. The following program has not yet been delivered to ISAB in
operational form but is anticipated by the middle of March 1970.
Simple Fourier Transform Program: Computes modulation transfer
function (or percent response) of a system
in the spatial frequency plane (cycles/mm)
by applying Fourier transform analysis to
edge derivatives. Inputs are the scans of
the edges to be analyzed, the D log E table,
and film MTF values. Outputs are reported
to.be_fidelity defect, modulation or percent
response (transform modulus), the real and
imaginary parts of the Fourier transform,
the phase angle in degrees, and area under
the normalized MTF. All of the above are
computed for each edge.
4. The following program is currently undergoing testing and revision
by AID .
Complex Fourier Transform Program: Similar to Simple Fourier
Transform program except that it attempts
to separate actual signal from an estimate
of the noise. After a noise estimate has
been computed statistically, it creates a
Turin filter for each edge which is used
on each trace to filter out the noise.
Input is same as Simple Fourier Transform
program. Primary outputs are noise power
spectral. density, MTF without filter, and
MTF with filter for each edge.
5. Requests for Micro--D support and operational runs of the programs
within the Micro-D Interim Software System should be in the form of a
speed letter to the chief, DAS/ISAB, through Chief, ISAD. The request
should indicate the exact nature of support required, project number and
the name of the person with whom the effort may be coordinated. Operating
Approved For Release 2005/02/17: CIA-RDP78BO4767A000300010013-2
 Approved For Rel se 2005/02/17: CIA-RDP78BO4767AOQQW00010013-2
TSSG/APSD/ISAB-015/70
SUBJECT: Status of Micro-D Interim Software System.
25X1A
operating time.
parameters for data collection and output requirements are dependent upon
the particular support requested and will be coordinated with the requester
through the Chief, DAS/ISAB. Generally a request involving computer output
will require an absolute minimum of two hours for completion with the exact
length of time required dependent upon the nature of the request and computer
ISAB/APSD/TSSG/NPIC
25X1A
Distribution:
Orig - NPIC/TSSG/APSD
1 - NPIC/TSSG/APSD/ISAB Chrono
1 - NPIC'_/TSSG/APSD/ISAB 920035
1 - NPIC/TSSG/APSD/IEB 610105
NPIC/TSSG/APSD/ISAB (29 Jan 70)
Approved For Release 2005/02/17 : CIA-RDP78B04767A000300010013-2