QGIS Lab Series

GST 101: Introduction to Geospatial Technology

Lab 6: Understanding Remote Sensing and Analysis

Objective – Explore and Understand How to Display and Analyze Remotely Sensed Imagery

Document Version: 2014-05-23 (Beta)

In this lab, students will learn how to display and inspect multi-band imagery in QGIS Desktop. They will use QGIS data processing tools to conduct an unsupervised classification of multi-spectral imagery. They will then use MultiSpec to perform a more advanced analysis. MultiSpec is a freeware multispectral image data analysis system created at the Purdue Research Foundation. MultiSpec provides the ability to analyze and classify imagery data, among other tasks. This lab has been adapted from four tutorial exercises provided by the MultiSpec team and provides an introduction to the software package.

This lab includes the following tasks:

Task 1 – Display and Inspection of Image Data
Task 2 – Unsupervised Classification (Cluster Analysis)
Task 3 – Supervised Classification

In order to make use of these instructions you should perform the following:

Watch the lab task videos quickly, one time through.
Download the lab instruction PDF and resize the windows to one half of the screen in vertical dimension.
Start QGIS and resize the windows to the other half of the vertical screen.
Work through the lab, using the videos as necessary for reinforcement of steps.