SPA504 Remote Sensing Algorithms (8)

In this subject, students learn important mathematical concepts and algorithms commonly used in processing of multispectral remote sensed imagery. This includes understanding the sources and characteristics of remote sensed data and the geometric and radiometric corrections to remote sensed imagery. On completion, students will have the ability to select and use an appropriate image processing technique to enhance and classify land cover classes using multispectral image data.


Session 2 (60)
Albury-Wodonga Campus

Continuing students should consult the SAL for current offering details: SPA504. Where differences exist between the Handbook and the SAL, the SAL should be taken as containing the correct subject offering details.

Subject Information

Grading System



One session


School of Environmental Sciences

Enrolment Restrictions

Undergraduate students may not enrol in this subject unless they have the permission of their Course Director and the Subject Coordinator.

Students who have completed SPA404 may not enrol in this subject

Assumed Knowledge

Introductory mathematics at tertiary level and remote sensing background at the level of SPA417 or equivalent.

Incompatible Subjects


Learning Outcomes

Upon successful completion of this subject, students should:
  • be able to describe the sources and characteristics of remote sensed data;
  • be able to make the appropriate radiometric and geometric changes to correct remote sensed imagery and to view geometry distortions;
  • be able to implement the specialised mathematical and statistical skills needed to undertake appropriate image processing techniques used in remote sensing;
  • be able to select and analyse the most appropriate image processing techniques to enhance and classify land cover classes using multispectral image data.


This subject will cover the following topics:
  • Sources and characteristics of remote sensed data
  • Geometric and radiometric correction imagery
  • Radiometric enhancement techniques including look up tables, linear contrast enhancement, histogram equalisation, histogram matching, density slicing and pseudocolour techniques
  • Geometric enhancement techniques including smoothing, edge detection and enhancement, spatial derivatives and general convolution filtering
  • Multispectral transformations of image data including principal component analysis, band ratios, vegetation indices, tasseled cap and Taylor transformations
  • Spatial filtering using Fourier transformation techniques
  • Supervised classification of multispectral imagery including maximum likelihood, box, Euclidean distance and Mahalanobis classifiers
  • Advanced classification techniques including contextural, neural network and expert system classifiers
  • Unsupervised classification techniques
  • Feature reduction and land cover discrimination using canonical variate analysis techniques
  • Analysis of multispectral remote sensed image data - case studies


For further information about courses and subjects outlined in the CSU handbook please contact:

Current students

Future students

The information contained in the CSU Handbook was accurate at the date of publication: May 2019. The University reserves the right to vary the information at any time without notice.