FILM DISTORTION SEMINAR

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B05171A000600020055-2
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: April 10, 2003
• Sequence Number: 55
• Publication Date: October 9, 1969
• Content Type: MFR

25X1
25X1
25X1
SUS=
from I
agenda).
SEG
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DI
2. The i
distortion
tion.
a ?
PIc
9 Otober 1969
859-69
was held in the rac Auditorium from .0930 tO
99. it was sponsored by APO anti representatives
TOPOOON, and DIA were present. see attached
The distorti
precis on grid 55 mm.
on WAS nn
ollowing
b. ON RMS residual
c. DP INS residual
reamed distorti
sidP of the
Brea
intersect ioz
sion of the
nt the highlights of this
tortion 4-5 u,
ortion, 16 u (it has been escerttwd that
.urs during the printing process and is due
Contact Printer). has develoPe
with a "free film path- ehich appeare
the DP to that of the ON. However, evaluation
yet complete.
reduce the distortion of
of this equipment is not
utilization of a
5 mm.
25X1 3. It still appears that the 1111 study, which was primarily oriented to
mapping requirements, does not answer the questions we have concerning distor-
tions occurring over verv small distances. This was discussed with the
25X1 representatives,' , they rill advise me
in the neer future concerning their recommendations on this matter.
I. The second part of the seminar was given by
concerning the Precision Nensuretion Study and
concerning the High Precision Stereo Comparator. Bill a briefing
and straight to the point. Some interesting data given by
follows:
/PHD
'3DB,
good
a, 90% of their measurements are over distances less than 400 um.
Long on the film 5 of their measurements are less than 50 um. long on
the film.
Declass Review by
Approved For Release 20(qp?pj 4 : zcIA-RDP78B05171A00060002
NIMA/DOD
GROUP
Irani autOntail,
- and
finnan
SECRET
ApprovetFor Release 2003/05/14: CIA-RDP788175171A000600020055-2
DiTAMT: File Distertt
b. Photogrammetrists differ from e
in the process of placing the point on the
differences in distance mossureeents oversee
in returning to the sum point evertor 2 u.
5. Our efforts to support their **arch far !mow
be problem ems encountered in the mensuration process are definite
ft New ones under commddsmietimivhiCh appear to have a vital
is the technique for consistent pointing
of 11
Their actu
differences
Approved For Release 2003/05/14i iNFIDP78B05171A000600020055-2