UCGIS

1
Elements of Image Interpretation
Carolina Distinguished Professor Department of
Geography University of South Carolina Columbia,
South Carolina 29208
Jensen, 2007
2
Low Oblique Aerial Photograph
Jensen, 2007
3
High Oblique Aerial Photograph
Jensen, 2007
4
Vertical Aerial Photograph
Jensen, 2007
5
Reasons why photo/image interpretation are
powerful scientific tools
aerial/regional perspective
three-dimensional depth perception ability to
obtain knowledge beyond our human visual
perception ability to obtain a historical
image record to document change.
Jensen, 2007
6
The Aerial/Regional Perspective
Jensen, 2007
7
Three-dimensional Depth Perception
Jensen, 2007
8
Obtaining Knowledge Beyond our Human Visual
Perception
Jensen, 2007
9
Historical Image Record and Change Detection
Documentation
Jensen, 2007
10
Elements of Image Interpretation
Jensen, 2007
11
Jensen, 2007
12
Elements of Image Interpretation - Tone and Color
Jensen, 2007
13
Panchromatic
Black and White Infrared
Tivoli North Bay on the Hudson River, NY
Jensen, 2007
14
Elements of Image Interpretation - Tone and Color
Jensen, 2007
15
Sir Isaac Newton discovered that white light
could be dispersed into its spectral components
by passing it through a prism.
Jensen, 2007
16
Color Theory
Additive Color
Subtractive Color
Jensen, 2007
17
Elements of Image Interpretation - Tone and Color
Green
Red
Near-infrared
Color composite RGB green, red, near-infrared
Jensen, 2007
18
Normal Color Film
Jensen, 2007
19
Aerial Photography
Normal Color
False-color Infrared Using Wratten 12 filter
Jensen, 2007
20
Color-Infrared Film
Jensen, 2007
21
Aerial Photography
Normal Color
False-color Infrared Using Wratten 12 filter
Jensen, 2007
22
Terrestrial Photography
Normal Color
False-color Infrared Using Wratten 12 filter
Jensen, 2007
23
Elements of Image Interpretation - Size
Jensen, 2007
24
Elements of Image Interpretation - Shape
Jensen, 2007
25
Elements of Image Interpretation - Texture
Jensen, 2007
26
Elements of Image Interpretation - Pattern
Jensen, 2007
27
Elements of Image Interpretation - Shadow
Jensen, 2007
28
Elements of Image Interpretation - Height and
Depth
Jensen, 2007
29
Elements of Image Interpretation - Site,
Situation and Association
Jensen, 2007
30
Methods of Search

• Use of Collateral Information
• Convergence of Evidence
• Use of the Multi-concept

Jensen, 2007
31
Collateral Information
Jensen, 2007
32
Convergence of Evidence
Jensen, 2007