(Sanitized) PROPOSAL

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A001500020002-2
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 1
• Document Creation Date: December 28, 2016
• Document Release Date: February 12, 2002
• Sequence Number: 2
• Publication Date: June 10, 1966
• Content Type: MF

Approved For Release 2002/06/17 : CIA-RDP78BO4747AO0150002 02-2
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C~NFII1Fn~rin QO?FJDENT
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SUM= I
MME:
ence dated 21 April 1966 from
1. In the referenced correspondence, proposes to
investigate, at no cost to the Government, the passib.lity of
incorporating an orbiting (dithering) screen in a rear-projection
viewer supplied by NPIG,
. The principle of screen dithering has been shown by various
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experimenters to be a valid approach. to image enhanc ent , but onl,,~
eider certain circumstances. (Grain-limited viewing is the primary
consideration.) Given an app opriatelyy degraded viewing situation,
ti-:.e mechanical problems of orbiting a large screen are paramount.
These difficulties are what would hope to overcame.
3. Before the implementation of a new dithering technique is
any ert en, a thorough study tit be made to define the circumstances
of potential deployment and the magnitude of expected improvement .
It is therefore considered inappropriate at this time to comply
with request for goverment furnished equipment.
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It. should I desire to pursue this matter further, it
Is recc ended that they be supplied only with the specifications and
the sources of the screen materials most prevalent in NPIC components.
5. Upon the receipt of more conclusive evidence to support
some specific merits of dithering, as well as a unique mechanical
or electrical approach, DB would reconsider request.
DECLASS REVIEW by NIMA/DOD
Distribution:
Orly & 1 - ;d6res.^sce
DB/P&D 3
Approved For Re@eoWfCJL617TIAi-RDP78B04747A001500020002
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Excluded from automatic
downgrading and
decfaasit'icauoe