Three-dimensional expression of relief in Landsat TM and SPOT P images

Ma Made la Luz Gil; Julia Armesto; Ignacio Canas

doi:10.1117/12.510021

13 February 2004 Three-dimensional expression of relief in Landsat TM and SPOT P images

Ma Made la Luz Gil, Julia Armesto, Ignacio Canas

Proceedings Volume 5239, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology III; (2004) https://doi.org/10.1117/12.510021
Event: Remote Sensing, 2003, Barcelona, Spain

Abstract

The perceptual problems of viewing topography on geo-images are caused by illumination from the southeast during data collecion. This problem affects the majority of satellite images. The aim f this work was to obtain a stereoscopic effect of shaded relief in such images. Techniques available in commercial digital processing programs were used in the absence of a digital elevation model. The images used were taken by the Landsat TM and SPOT P satellites; the software used was the EASI-PACE and ACE programs (Canadian PCI Geomatics Group). The pseudoscopic effect was solved by using the first principal component obtained in principle components analysis of the three channels resulting from the weighted merging of the Landsat and SPOT data. The map obtained provides the observer a view with shaded relief.

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Ma Made la Luz Gil, Julia Armesto, and Ignacio Canas "Three-dimensional expression of relief in Landsat TM and SPOT P images", Proc. SPIE 5239, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology III, (13 February 2004); https://doi.org/10.1117/12.510021

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KEYWORDS

Earth observing sensors

Landsat

Image fusion

Satellite imaging

Satellites

Principal component analysis

Visualization

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