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. 2 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.

8 Topics in short ▪ Image acquisition ▪ Image interpretation ▪ (Elementary) image analysis ▪ (Elementary) image measurement 9 Image acquisition 10 True colour False colour 400nm 500nm

700nm

900nm … 400nm 500nm

700nm

900nm … Image interpretation 11 Image analysis 12 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 13 Image measurement 14 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

15 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 17 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. 18 Communication with lecturer and tutors For all questions please use the Discussion Board on LMS. 19 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/ 20 © Copyright The University of Melbourne 2011

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