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IMAGERY.

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Presentation on theme: "IMAGERY."— Presentation transcript:

1 IMAGERY

2 Terminal Learning Objective
Action: Discuss the advantages and disadvantages of various types of aerial imagery Condition: Given intelligence handout and group discussion in a classroom environment. Standard: Score 70% on a 50 question multiple choice test.

3 General Admin SAFETY REQUIREMENTS: GENERAL SAFETY RISK ASSESSMENT: LOW
ENVIRONMENT CONSIDERATIONS: IF YOU BROUGHT IN, TAKE IT WITH YOU!! EVALUATION: Students will be evaluated during a written exam following the exam and during the graded FTX.

4 Enabling Learning Objective A
Action: Learn types of imagery, and various aspects of each type of imagery. Condition: Given intelligence handout and group discussion in a classroom environment. Standard: Score 70% on a 50 question multiple choice test.

5 Photographic Imagery Intelligence and combat information are required by commanders at all echelons to satisfy their needs. Timely, accurate information is the cornerstone on which sound tactical decisions are made. Imagery provides information or intelligence that is not only timely, but, in most cases, accurate and detailed.

6 Echelon Support Echelons above corps
National level assets, civil and commercial systems Corps Division

7 Types of Imagery RADAR (to include SAR) Infrared (thermal) Optical
Electro optical Multi-spectral

8 Radar Best for detecting objects at night and in bad weather
Capabilities All-weather capability Can penetrate fog, haze, clouds, smoke Good stand-off capability Large area coverage Can detect movement Does not rely on visible light nor thermal radiation

9 Radar Limitations Requires skilled analysis
Can be jammed or intercepted Terrain masking

10 IR Capabilities Best for night time, clear weather, detailed analysis
Finds objects by the heat they radiate Can detect objects at night Can locate personnel and equipment under camouflage Passive sensor Provides good resolution

11 IR Limitations Thermal/temp cross-over twice each day
Bloom of heat sources can obscure or hide nearby objects Weather severely degrades resolution Tactical platforms vulnerable to enemy air defense

12 Hard Copy (Optical) Capabilities
Best tool for daytime, clear weather, detailed analysis Highest resolution Affords familiar view of scene Preferred for detailed analysis Offers stereographic viewing

13 Hard Copy (Optical) Limitations
Processing time Can be deceived by employment of camouflage and concealment techniques Restricted by weather conditions; Visible light cannot penetrate clouds or fog Restricted by terrain and vegetation Limited to daytime use only

14 Optical Imagery

15 Soft Copy (electro-optical) Capabilities
Excellent resolution Near-Real-Time (NTR) capability Same capabilities as optical

16 Soft Copy (electro-optical) Limitations
Requires large amount of memory and storage Same as for optical (with exception of processing time)

17

18 Multi-spectral Capabilities
Best tool for mapping purposes and terrain analysis Large database available Wide area coverage Band combinations can be manipulated to display desired requirements Images can be merged with other digital data to provide higher resolution

19 Multi-spectral Limitations
Poor resolution Current platforms commercially owned Scenes must be purchased Computer manipulation requires large amount of memory and storage Image quality degraded by same weather factors for visible and IR

20 Map Mosaic

21 Perspective View

22 Summary IMINT Mission Four types of aerial imagery
Capabilities and limitations of each type

23 QUESTIONS???

24 Check on Learning What are the four types of aerial imagery?
What is the disadvantage of Electro-optical over optical? What are two advantages of radar imagery?

25 Enabling Learning Objective B
Action: Learn the various angles imagery photos can be taken at and the advantages and disadvantages of each type. Condition: Given intelligence handout and group discussion in a classroom environment. Standard: Score 70% on a 50 question multiple choice test.

26 Angles of Photography Vertical (topographical) Oblique (low and high)
Panoramic

27 Vertical (overhead)

28 Vertical Capabilities
Fairly constant scale Can see what is all around an object as opposed to just one side Can be used as a map substitute Can construct mosaics Obtain accurate measurements Allows stereographic viewing Accurate interpretation

29 Vertical Limitations Difficult to see slopes Depth perception lacking
Aircraft or air vehicles must fly directly over target Objects under overhead cover cannot be viewed Unnatural view angle Some targets cannot be viewed due to restrictions on over-flights

30 Low Oblique

31 High Oblique

32 Oblique Advantages More natural viewing angle
Can “see” the slope of the terrain Can determine heights of objects Can see under cover Large area coverage Stand-off capability

33 Oblique Disadvantages
Scale variations Measurement difficult Terrain masking

34 Panoramic

35 Panoramic Advantages Large area coverage
Satisfies both vertical and oblique mission requirements Limited stand-off

36 Panoramic Disadvantages
Scale varies Measurements difficult

37 IR Capabilities

38 Blossoming, Halation, and Bleed-over effect

39 IR Imagery Distortions
B A - IR shadow (ghost effect) B - halation

40 QUESTIONS???

41 Check on Learning What are the five types of imagery?
What are the advantages of oblique imagery? What are the advantages of vertical imagery?


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