GEOM30009
Imaging the Environment
Kourosh Khoshelham
Imaging the environment
The aim of this subject is to introduce the principles and
techniques of image acquisition, interpretation and analysis
to obtain spatial information about the environment.
Or in short: how to use imagery as an earth observation tool.
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Imagery as an earth observation tool
Observing
the natural
environment
Bora Bora – French Polynesia,
September 12, 2012.
Image credit: SPOT
Imagery as an earth observation tool
Observing
the built
environment
Construction of
Palm Jumeirah,
Dubai,
December 2001 -
October 2003
Image credit:
DigitalGlobe
Imagery as an earth observation tool
Observing
historical sites
Angkor Wat - Cambodia,
April 12, 2004.
Image credit: DigitalGlobe
Imagery as an earth observation tool
Observing natural disasters
Moore,
Oklahoma,
before tornado
April 29, 2013
Image credit:
DigitalGlobe
Imagery as an earth observation tool
Observing natural disasters
Moore,
Oklahoma, after
F5 tornado
May 22, 2013
Image credit:
DigitalGlobe
Intended Learning Outcomes
Having completed this subject students will be able to:
ILO 1 - Describe imaging techniques which allow information to be
extracted from the image
ILO 2 - Design and create representations of spatial information
extracted from image data
ILO 3 - Analyse image data to monitor various environments including
natural, urban, indoor, and outdoor
ILO 4 - Interpret image data to inform management of various
infrastructures.
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Topics in short
▪ Image acquisition
▪ Image interpretation
▪ (Elementary) image analysis
▪ (Elementary) image measurement
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Image acquisition
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True colour False colour
400nm 500nm 700nm 900nm … 400nm 500nm 700nm 900nm …
Image interpretation
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Image analysis
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Water
Vegetation
Greenhouses
Urban
Beach
0 50 100 150 200 250
0
50
100
150
200
250
NIR pixel value
R
e
d
p
ix
e
l
v
a
lu
e


vegetation
soil
water
Image measurement
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Image measurement
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Learning mode
▪ Lectures
• Slides (LMS)
• Lecture recordings (LMS)
• Your own notes (download handouts from LMS)
▪ Interactive exercises on LMS
▪ Practical assignments
• Assignment description
• Assignment material
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Important dates
Week 1-3 Image interpretation (15%) submission: 11:55 pm Friday of Week 3
Week 4-6 Assessing burn scars (15%) submission: 11:55 pm Friday of Week 6
Week 7-9 Information extraction (15%) submission: 11:55 pm Friday of Week 9
Week 10-12 Image georeferencing (15%) submission: 11:55 pm Friday of Week 12
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Visit the Subject Overview page on LMS for the schedule of lectures and tutorials.
Group assignment mark = report mark×(individual PE total / average PE total)
PE: peer evaluation
Assessment
• Four practical assignments (15% each) 60%
• One mid-semester test 10%
• An end-of-semester exam 30%
Notes
- Late submission penalty: 10% of the assignment mark per working day.
- Turnitin check of report similarities.
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Communication with lecturer and tutors
For all questions please use the Discussion Board on LMS.
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Recommended readings
For a better understanding of fundamentals and theoretical concepts:
John R. Jensen (2007). Remote Sensing of the Environment: An Earth
Resource Perspective, 2nd Edition. Prentice Hall.
For a practical guide with hands-on exercises:
The ArcGIS Imagery Book
http://learn.arcgis.com/en/arcgis-imagery-book/
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© Copyright The University of Melbourne 2011

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