PROGRESS REPORT NO. 17

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A000700020025-6
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 66
• Document Creation Date: December 28, 2016
• Document Release Date: April 1, 2002
• Sequence Number: 25
• Publication Date: July 24, 1967
• Content Type: REPORT

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Progress Report No. 17
Report Period: 3 July 1967 to 24 July 1967
Project Title: Gems Development (continuation)
PROJECT IDENTIFICATION
Contractor's Project No. . . . . . . . SPO 27203
Customer Project No. . . . . . . . . .
FISCAL DATA
Type of Contract
Total Contract
Scheduled Completion Date
Percent of Total Funds Expended
Percent of Work Completed
29 September 1967**
92 as of 23 June 1967*
92 as of 23 June 1967%
* Report of expenditures and work completion lags technical
progress report by approximately three weeks.
New completion date established as of January, 1967, under
Redirection of Program Efforts Proposal.
Declass Review by
NIMA/DOD
STAT
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 Approved Forlease 2002/06/17 : CIA-RDP78B047400700020025-6
Objective of Project
The principal objective of this project is to determine how well the
image quality of mission photography can be assessed by means of GEMS. In
order to accomplish this objective, psychophysical tests shall be performed
wherein photographic images of known quality (GEMS) are compared to mission
photography. In fulfillment of this objective, a number of subtasks are being
undertaken. These subtasks consist of the refinement of existing GEMS making
techniques, the study of alternate techniques, the study of GEMS viewing equip-
ment, and the fabrication of a Pseudo GEMS breadboard.
Status of Overall Project
The Psychophysical GEMS tests were initiated on 17 July 1967. Task
final report writing continued in a number of areas.
a) Psychojhysical GEMS Matrix
The Psychophysical GEMS tests were initiated at the customer's
facility. The first week's tests indicate that the matrix array will provide
information concerning the usefulness of GEMS and the desirable parameter
increment spacing. The tests will include the use of this matrix array to
evaluate mission material.
It is anticipated that the testing will be concluded by 3 August 1967.
b) Other Study Tasks
Final reports are being written for a number of study tasks. It is
anticipated that most of these will be completed in August.
Work for Next Period
All study efforts will be concluded by end August. Most study final STAT
reports also will be completed by that time.
Manager, Photographic cience
Section
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STAT
Progress Report No. 16
Report Period: 25 May 1967 to 30 June 1967
Project Title: Gems Development (continuation)
PROJECT IDENTIFICATION
Contractor's Project No. . . . . .
Customer Project No. . . . . . . .
Contract No . . . . . . . . . . . .
FISCAL DATA
Type of Contract
Total Contract
Scheduled Completion Date
Percent of Total Funds Expended
Percent of Work Completed
STAT
29 September 1967**
87 as of 26 May 1967*
87 as of 26 May 1967*
Report of expenditures and work completion lags
technical progress report by approximately three
weeks.
New completion date established as of January 1967
under Redirection of Program Efforts Proposal.
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 Approved For Ref se 2002/06/17: CIA-RDP78B04747AQ700020025-6
objective Of Projg_qL
The principal objective of this project is to
determine how well the image quality of mission photography
can be assessed by means of GEMS. In order to accomplish
this objective, psychophysical tests shall be performed
wherein photographic images of know quality (GEMS) are compared
to mission photography. In fulfillment of this objective, a
number of subtasks are being undertaken, These subtasks consist
of the refinement of existing GEMS making techniques, the
study of alternate techniques, the study of GEMS viewing
equipment, and the fabrication of a Pseudo GEMS breadboard.
Status of Overall Project
During June, the Psychophysical GEMS matrix was
fabricated. The majority of the Equal Magnification GEMS
Study work was completed; and a final report for this task
and the System Parameters Study task are presently being
written.
a) Psychophysical GEMS Matrix
The Psychophysical GEMS matrix was completed in
June. Arrangements have been made with the customer and
to initiate the tests on 17 July 1967 at the customer's
facility.
The modulation transfer function - exposure matrix
array was generated to encompass a suitable performance range
of the appropriate camera system as determined from the
System Parameters Study. A copy of the Psychophysical GEMS
Matrix Data report is enclosed as Appendix A.
b) System Parameters Study
The difficulties encountered in measuring the film
granularity have been corrected and new granularity data was
obtained. The completion of this task report has been delayed
because of the full time involvement of the report engineer on
the Psychophysical GEMS Matrix task during June.
c) Fqual Mcnifiction GEMS Study
STAT
Most of concept phases of the Equal Magnification
GEMS ak rgv Fc 'e9e eE2b02fbtf*~bA- P78tb474AE9?0h0O:f0025.6 r s a l
 Approved For Rase 2002/06/17 :'CIA-RDP78B04747A W700020025-6
film to be used in this approach still has not been determined.
Information was received during June on DuPont film type
SR102. But, some data concerning the performance aspects of
this film type are yet unknown. The data required is
forecoming.
Work for Next Period
The Psychophysical GEMS tests will be conducted
in July. The tasks reports for the System Parameters Study
and Equal Magnification GEMS Study are to be written.
STAT
Manager, Photographic Science Section
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Appendix A
Psychophysical. GEMS Matrix
Data Report
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 Approved For Rase 2002/06/17 CIA-RDP78B04747A700020025-6
PSY.CHOPHYSICAL GEMS MATRIX
DATA REPORT
The enclosed GEMS matrix array is composed of elements varying both
in modulation transfer function (MTF) and exposure for three different scenes.
The GEMS matrix was fabricated to simulate the appropriate mission material
under specific viewing conditions; i.e., when the mission material and GEMS are
viewed at 60 and 20 times magnification, respectively. The differences in
grain size and scale factor, which would normally exist at these two viewing
magnifications, were properly adjusted in the simulation process.
Matrix Element Identification
Each scene matrix element is mounted between glass and identified in
two ways. A label containing a random identification number has been placed
over a. matrix element code number written on the glass plate. The color of the
random number label/ identifies the three different scenes.
The code number is used to identify particular elements within the
matrix array. The first digit (or first two digits in a three-digit code number)
indicates the level of MTF where the number, (1) represents the highest and the
number (10) represents the lowest. The second digit (or third digit in a three-
digit code number) indicates the level of exposure where the number (1) represents
the minimum exposure and the number (7) represents the maximum exposure.
A listing of these identification numbers is included in this report.
Parameter Specifications
Data sheets defining the objective evaluation of the MTF and exposure
parameters for the matrix are included as Figures 1 and 2 of this report. The
MTF increments of the GEMS are representative of 10 percent changes in limiting
scene ground resolution and depicted by 0.45 modulation. response curves. The
increment spacings for the seven exposure levels were varied from 0.02 to 0.15
density units to achieve a total exposure shift of 0.38 density units between
exposure elements 1 and 7. Reference Figure 2 for the exact value of each
increment shift.
The range of MTF's and exposures, as well as the evaluation and reporting
of MTF curves at a 0.45 modulation response level, was determined to be most
appropriate from the System Parameters Study and most representative of mission
material.
The limiting scene ground resolutions reported in Figure 1 correlate
with the GEMS directly. When the GEMS are compared with the mission material
at the viewing magnifications given above, the limiting scene ground resolutions
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*wr
are increased by a factor of three. (See table below)
MTF Code
Digit(s)
GEMS Scene
Ground Resolution(l/mm)
Viewing Factor
. GEMS Scene
Ground Resolution(1/mm)
58.7
176.1
52.8
158.4
47.5
142.5
42.8
128.4
38.5
115.5
6
.34.7
104.1
7
31.2
93.6
8
28.1
84.3
9
25.3
75.9
10
22.8
68.4
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 Approved For Rase 2002/06/17 CIA-RDP78B04747A0(0700020025-6
MATRIX ELEMENT IDENTIFICATION CHART
(1) Harbor Scene -Pink Labels
(RN / EC: Random Number / Element Code)
RN/EC
R
EC
RN EC
RN / EC
00 / 33
03 / 41
04 / 12
29
30
31
/ 65
/ 102
/ 66
61 / 87
62 / 77
64 / 82
89 / 107
90 / 45
91 / 64
05/81
32/71 65/92
92/63
06 / 73
33
/ 72
66 / 84
93 / 91
07 / 76
35
/ 56
67 / 26
94 / 103
08 / 55
36
/ 75
68 / 54
95 / 62
09 / 34
37
/ 27
69 / 51
96 / 106
11 / 36
38
/ 11
71 / 42
97 / 35
12 / 24
39
/ 83
73 / 94
99 / 74
14 / 101
45
/ 25
76 / 32
15 / 57
46
/ 52
77 / 44
16 / 14
51
/ 13
79 / 96
17 / 86
53
/ 22
80 / 31
19 / 16
54
/ 23
81 / 85
22 / 43
55
/ 95
82 / 37
24 / 67
56
/ 104
84 / 97
26/93
57
/61
86/46
27 / 53
59
/ 1.7
87 / 105
2 8 / 21
60
/ 47
88 / 15
3
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 Approved For R ase 2002/06/17: CIA-RDP78B04747A0 0700020025-6
(2} Airfield Scene --Green Labels
(RN / EC: Random Number / Element Code)
EC RN IC RN EC RN
RN
EC
L
00 / 61 29 / 86 61 / 93 89 /
45
03 / 97 30 / 43 62 / 91 90 /
63
04 / 106 31 / 96 64 / 87 91 /
16
05 / 24 32 / 54 65 / 33 92 /
66
06 / 73 33 / 62 66 / 102 93 /
22
07 / 55 35 / 76 67 / 25 94 /
26
08 / 82 36 / 107 68 / 53 95 /
71
09 / 36 37 / 23 69 / 84 96 /
41
11 / 64 38 / 12 71 / 72 97 /
85
12 / 31 39 / 81 73 / 27 99 /
34
14 / 56 45 / 44 76 / 101
15 / 14 46 / 32 77 / 74
16 / 92 51 / 105 79 / 46
17 / 104 53 / 17 80 / 15
19 / 35 54 / 103 81 / 77
22 / 21 55 / 95 82 / 75
24 / 13 56 / 57 84 / 65
26 / 42 57 / 47 86 / 67
27 / 11 59 / 83 87 / 94
28 / 51 60 / 52 88 / 37
4
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(3)
City Scene- White Labels
(RN / EC: Random Number / Element Code)
RN
/F C
RN / EC
RN / EC RN / EC
_
00 /
75
29 / 21
61 /
82
89 /
62
03 /
56
30 / 15
62 /
34
90 /
53
04 /
95
31 / 26
64 /
61
91 /
52
05 /
106
32 / 44
65 /
37
92 /
12
06 /
54
33 / 27
66 /
65
93 /
51
07 /
1.01
35 / 87
67 /
36
94 /
11
08
36 / 16
68 /.
17
95 /
105
09
37 / 63
69 /
47
96 /
45
11 /
s
38 / 14
71-/
103
97 /
84
12 /
85
39 / 32
73 /
73
99 /
43
14 /
42
45 / 35
76 /
92
15 /
74
46 / 102
77 /
77
16 /
23
51 / 25
79 /
13
17 /
].07
53 / 67
80 /
22
19 /
33
54 / 104
81 /
76
22 /
97
55 / 46
82 /
55
24 /
83
56 / 24
84 /
66
26/91 57 /94
86/93
27 / 71 59 / 41
87 / 64
28/57 60/86
88/72
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(4) Harbor Scene --Pink Labels
(EC / RN: Element Code / Random Number)
EC RN EC / RN EC RN EC
RN
11 / 38 41 /
03 71 / 32 101 /
14
12 / 04 42 /
71 . 72 / 33 102 /
30
13 / 51 43 /
22 73 / 06 103 /
94
14 / 16 44 /
77 74 / 99 104 /
56
15 / 88 45 /
90 75 / 36 105 /
87
16 / 19 46 /
86 76 / 07 106 /
96
17 / 59 47 /
60 77 / 62 107 /
89
21 / 28 51 /
69 81 / 05
22 / 53 52 /
46 82 / 64
23 / 54 53 /
27 83 / 39
24 / 12 54 /
68 84.'/ 66
25/45
55/08
85/81
26 / 67
56 / 35
86 / 17
27 / 37
57 / 15
87 / 61
31 / 80
61 / 57
91 / 93
32 / 76
62 / 95
92 / 65
33. 00
63 / 92
93 / 26
34 / 09
64 / 91
94 / 73
35 / 97
65 / 29
95 / 55
36/11
66/31
96/79
37 / 82
67 / 24
97 / 84
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(5)
(EC / RN: Element Code / Random Number)
EC / RN
EC / RN
EC / RN
EC / RN
11 / 27
12 / 38
13 / 24
14 / 15
15 / 80
41 / 96
42 / 26
43 / 30
44 / 45
45 / 89
71 / 95
72 / 71
73 / 06
74 / 77
75 / 82
101 / 76
102 / 66
103 / 54
104 / 17
105 / 51
16/91
46/79
76/35
106/04
17 / 53
47 / 57
77 / 81
107 / 36
21 / 22
51 / 28
81 / 39
22 / 93
52 / 60
82 / 08
23 / 37
53 / 68
83 59
24/05
54/32
84/69
25 / 67
55 / 07
85 / 97
26 / 94
56 / 14
86 / 29
27 / 73
57 / 56
87 / 64
31 / 12
61 / 00
91 / 62
32 / 46
62 /_33
92 / 16
33 / 65
63 / 90
93 / 61
34 / 99
64 / 11
94 / 87
35 / 19
65 / 84
95 / 55
36/09
66/92
96/31
37 / 88
67 / 86
97 / 03
7
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(6)
City Scene: White Labels
(EC / RN: Element Code / Random Number.)
EC / RN
EC / RN
EC / RN
EC / RN
11 / 94
41 / 59
71 / 27
101 / 07
12 / 92
42 / 14
72 / 88
102 / 46
13/79
43/99
73/73
103/71
14 / 38
44 / 32
74 / 15
104 / 54
15 / 30
45 / 96
75 / 00
105 / 95
16/36
46/55
76/81
106/05
17 / 68
47 / 69
77 / 77
107 / 17
21 / 29
51 / 93
81./ 08
22 / 80
52 / 91
82 / 61
23 / 16
53 / 90
83 / 24.
24 / 56
54 / 06
. 84 / 97
25 / 51
55 / 82
85 / 12
26/31
56/03
86/60
27 / 33
57 / 28
87 / 35
31 / 09
61 / 64
. 91 / 26
32 / 39
62 / 89
92 / 76
33 / 19
63 / 37
93 / 86
34 / 62
64 / 87
94 / 57
35 / 45
65 / 66
95 / 04
36 / 67
66 / 84
96 / 11
37 / 65
67 / 53
97 / 22
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 Approved For Rase 2002/06/17: CIA-RDP78BO4747AQP700020025-6
(7)
Duplicates of six matrix elements for each of the three scenes are
included in the GEMS Matrix for test purposes. The element code numbers are
listed below with their corresponding random numbers. The columns of random
numbers, from left to right, identify the harbor, airfield, and city scenes,
respectively,
EC
Random Numbers
17
2
6
8
56
5
3
4
62
7
1
7
71
4
9
2
83
1
7
9
95
9
2
3
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 Approved For RRse 2002/06/17 :-CIA-RDP78B04747700020025-6
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