DEAR SIR:

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A000600070004-5
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 13
• Document Creation Date: December 28, 2016
• Document Release Date: January 29, 2002
• Sequence Number: 4
• Publication Date: October 17, 1961
• Content Type: LETTER

STATINTL
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Enclosed is a draft of an outline of the manual,
"Collection and Field Mensuration Techniques for Ground
Photographs. " The contents are undergoing additional
refinement.
Your comments and suggestions will be very much
appreciated.
Sincerely yours,
RM N/j b
Enclosures - 3 copies of outline
Declass Review by NIMA/DOD
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STATINTL
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Two
COLLECTION
AND
FIELD MENSURATION TECHNIQUES
FOR GROUND PHOTOGRAPHS
(Tentative Outline)
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PART I -- COLLECTION OF GROUND PHOTOGRAPHS FOR METRICAL DATA
Chapter I. Introduction (Purpose, Scope, Approach and Organization
of the Manual)
Chapter II. Purpose and Principles of Metrical Photography
A. Purpose of Metrical Photography
1. Why Such Photography is Needed
2. Kind of Metrical Data Needed (With Annotated
Illustrations)
B. Principles -- Geometry and Methods of Approach (Basic Ideas)
C. Basic Requirements
Chapter III. How to Approach the job
A. Mission Hazards
Operator Preparation
1. Thinking Geometrical ly
2. Familiarity with Equipment, Requirement
3. Mission Planning
4. Practice
Chapter IV. Requirements and Variations
A. Need for Angular Orientation
B. Lens/Camera Selection
C. Control Needs
Types of' Targets and Problem Areas.
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Photo-Data Correlation
Photo System Comparison
Chapter V. Mission Planning
A. Problem Analysis
B. Photo Mission
C. Mission Simulation
D. Mission Critique
Chapter VI. Perspective Variations
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A. Cultural, Information for Angular Orientation
1. Single Photograph
2. Panorama Photography
a. Horizontal Orientation
b. Oblique Orientation
C. Horizontal-Oblique Combinations
3. Subject Evaluation -- Qualitative Analysis
a. Multiple Lens/Photo Cover
b. Area/Distance Considerations
B. Topographic Problems
Chapter VII. Dimensional Control Techniques
A. Object Dimensions
1. Exterior
2. Interior
3. Small Objects
B. Camera-Object Distances
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C. Baselines
D. Map Information
Chapter VIII. Multiple Station Photography
A. Object Resection
1. Photographic Cover
a. Horizontal
b. Oblique
C. Combination
2. Control Data
3. Photo-Data Correlation
B. Control Extension
1. Photographic Cover
2. Control Techniques
3. Photo-Data Correlation
Chapter IX.
Two Station Photography. A4 or2C
A.
Stereo Orientations
1.
Photographic Cover
a.
b.
Horizontal techniques
Oblique techniques
2.
Control Techniques
3.
Data Correlation
B. Panorama Methods
1. Photographic Cover
a. Horizontal Method
b. Oblique Methods
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c. Horizontal-Oblique Combinations
2. Control Data
3. Data Correlation
Chapter X. Single Station Photography
A. ["Stereo-Camera Techniques
1 1. One Set Exposure Method
a. chniques (Horizontal/Oblique)
a. Techniques (Horizontal/Oblique)
Control
Data Correlation
Panorama Exposure Method
b. Control
c. Data Correlation
One Photo Techniques
1. Horizontal Exposures
2. Oblique Exposures
3. Control
4. Data Correlation
Co Multiple Exposure Techniques --- ~ ~ ,
1. Wide Angle Overlapping Narrow Angle Photo Methods
a. Techniques
b. Control
c, Data Correlation
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2. Panorama Exposures
a. Horizontal Methods
(1) Techniques
(2) Control
(3) Data Correlation
b. Oblique Methods
Techniques
Control
Data Correlation
1. A
c. iorizontal-Oblique Combination Methods
Techniques
Control
Data Correlation
Chapter XI. Problems in Movement
A. Single Stationary Camera Stations (Moving Object)
1. Image "Streak" Method
2. Time Interval Method
B. Multiple Stationary Camera Stations (Moving Object)
1. Image "Streak" :Correlations
2. Time Interval Methods
C. Moving Camera Station
1. Fixed Object Methods
a. Techniques
b. Control Methods
c. Data Correlation
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2. Moving Object Methods
Object Dimensional Data
(1) Techniques
(2) Controls
(3) Data Correlation
Object Velocity
(1) Techniques
(2) Controls
(3) Data Correlation
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PART II -- FIELD DETERMINATIONS OF METRICAL DATA FROM GROUND
PHOTOGRAPHS
Chapter I. Introduction
Purpose, Scope, Approach, and Manual Organization
Chapter II. Planning Photographic Data Reduction (Basically a Description
of How to Use Part II of the Manual)
A. Listing Required Product Data
B. Photographic Layout
0. Analysis for Angular Orientation
D. Analysis for Dimensional Determinations
1. Single Photo Methods
2. Stereo Methods
3. Panorama Methods
4. Two Station Methods
5. Multiple Station Techniques
Object Dimension Determinations
Object Angle Determinations
Velocity Determinations
Chapter III. Angular Orientation
A. Principal Point Determinations
B. Cultural Perspective Techniques
1. Horizontal Photo Techniques
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a.
Horizon Location
(1)
Two Vanishing Point Method --
Horizontal Lines
(2)
Inaccessible Vanishing Point Method --
Horizontal Lines
(3)
Diagonal Line Method Vertical Plane
(4)
Sloping Line Method
(5)
Shadow Methods
(6)
Reflection Methods
b. Principal Line Isocenter Location (Circle Method)
c. Image Distance Determinations
(1) Circle Method
(2) Plane View Method
d. Tilt Determination
e. Limits of Horizontal Orientations
2. Oblique Photo Techniques
Horizon Location Methods
Nadir-Zenith Techniques
c. Tilt Developments
3. Panorama Photo Methods
a. Wide Angle Overlapping Narrow Angle Cover
b. Single Station Overlapping Photography
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c. Two Station Overlapping Photography
(l) Stereo Orientation
(2) Non-Stereo Orientation
d. Multiple Station Overlapping Photography
C. Imaged Horizon Techniques
.D. Topographic Techniques
1. Assumed Horizontal Photography
2. Photo-Map Methods
a. Triangle Comparison Method
b. Circle-Ellipse Method
c, Coordinate Comparison Method
Chapter IV. One Camera Station Dimensional Methods
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+:Si~' '@ntsngyi~yhk6'~. ~++Y.`'
A. Single Horizontal Photo Orientations
Rectification and Scale with Control Data (Cultural
Perspective Methods)
2. Unknown Dimension Determinations
3, Angle Determinations
B. Single Oblique Photo Orientation
1. Rectification and Scale with Control Data
2. Unknown Dimension Determinations
3. Angle Determinations
C. Panorama Orientations
1. Horizontal Photo Techniques
a. Control Extension Methods
b. Unknown Dimension and Angle Determinations
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2.
Oblique Photo Techniques
a.
b.
Control Extension Methods
Unknown Dimension and Angle Determinations
3.
Horizontal-Oblique Photo Combinations
a. Control Extension Method
b. Unknown Dimension and Angle Determinations
D. Stereo-Camera Techniques
1. One-Set Exposures
2. Panorama Exposures
Chapter V. Two Camera Station Methods
A. Perspective Construction Techniques
1. Map Control
2. Camera-Base Control
3. Object Dimension/Distance Control
B. Stereo Techniques
1. Scale "Parallax" Method
2. Dimension Comparison Method
Chapter VI. Multiple Camera Station Methods
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A. Object Resection Techniques
1. Perspective Construction Techniques
2. Comparison Method
B. Control Extension Techniques
1. Map Control
2. Camera-Base Control
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3. Object-Dimension/Distance Control
4. Traverse Procedure
Chapter VII. Problems in Movement
A. Single Camera Station Methods
1. Single Photo Image "Streak" Technique (Velocity of
Moving Object)
2. Time Interval Method
B. Multiple Camera Station Methods
1. Moving Camera Station
a. Map Control and Orientation
b. Object-Dimension Control and Orientation
c. Fixed Object Determinations
d. Moving Object Velocity Determina ion
2. Stationary Camera Stations
a. Time Interval Methods
b. Image Streak Correlations
Appendix A -- Graphical Construction Techniques
Appendix B -- Measurement Techniques with a Scale
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