CAPABILITY OF NPIC/(Sanitized) CLOUD SCREENING DEVICE TO DETECT HAZE AND OUT-OF-FOCUS CONDITIONS

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B05171A000800080086-0
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: November 18, 2003
• Sequence Number: 86
• Publication Date: March 4, 1969
• Content Type: MF

SECRET
Approved F.pr Release 2003/12/19 : CIA-RDP78BO5 71A000800080086-0
'IC/TSSG/DED_l5214_69
4 March 1969
:ME RAIIDUM FOR: Chief, Technical Services & Support Group, NPIC
Capability of NPIC~ Cloud Screening Device to
Detect Haze and Out-of-Focus Conditions
25X1
Dated 18 February 1969
1. A precise answer to the questions posed in Paragraph 1+ of the
referenced memorandum cannot be given at this time since the device
has not been built and since feasibility demonstrations have not yet
indicated the approach that will be employed in the screener.
2. During April, feasibility tests will be conducted to determine
which of the following listed techniques will be used in the engineering
prototype:
a. Electronic clue extraction (ECE)
b. Diffraction pattern analysis (DPA)
c. Holographic matched filtering (11IT)
3. Based on the best available data the following comments in-
dicate what can be expected from the engineering prototype-
OUT-Or-FOCUS CONDITION -. ECE--vould not indicate this
condition, assuming that all other factors relating
to quality were good. DPA and UHF would very likely
work although tests would have to be made on various
out-of-focus targets to indicate the range of applic-
ability.
HAZE -. ECE-would detect haze down to some
pre-determined and pre-learned threshold. Here we
rust define for the machine what we mean by haze.
DPA and THMF would work to a predetermined threshold
In essence, the degree of success in determining out-of--focus
d/or haze conditions will depend on the cloud screening approach
decided upon based on the results of the Phase III feasibility tests
scheduled for April.
Declass Review
by NIMA/DOD cno~w
Ru ea ;r~ra eutr!rs3N~
Approved For Release 2003/12/19 : CIA-RDP78BO5171A000800080 t,p~ any
S EC R ET rta'st~s+'i:c~~n
 SECRET
Approved For Release 2003/12/19 : CIA-RDP78B05171A000800080086-0
25X1
SUBJECT: Cs,Pability of NP'IC~ Cloud Screening Device to Detect
Haze and Out-of-Focus Conditions
25X1
NPIC/TSSG/DED/R&DB-11
Distribution:
Sri Addressee
- NPIC/TSSG/DL,D
2 - NPIC/TSSG/DED/R&Dl-II
25X1 NPIC/TSSG/DED/R&DB-II 4 Mar 69)
Approved For Release 2003/ ~~TRDP78B05171A000800080086-0