TECHNICAL ARTICLES

VISUALISATION TECHNIQUES: AN OVERVIEW – PART 1
Runar Ostnes*, Victor Abbott and Samantha Lavender
School of Earth, Ocean and Environmental Sciences, University of Plymouth, UK
* Lecturer at Aalesund University College, Norway, and PhD student at UoP

Abstract
Three dimensional (3D) effects and depth perception in a display system can be achieved in a number of different ways, which were discussed in Part 1 of this paper. The simplest method is to apply one or more monocular depth cues, but to establish stereoscopic effects, and further enhance depth perception; a binocular depth cue has to be applied. The left and right eye images of a stereo pair have to be channelled to the respective eyes with the exception of the chromo stereoscopic technique (only needs one colour-coded image to establish the stereoscopic effect).

This paper describes the most accepted 3D stereoscopic display techniques presently available and summarises how hydrographic data is currently presented. It then discusses the suitability, opportunities and benefits of implementing stereoscopic techniques when presenting hydrographic data. Concluding that with relatively simple means, stereoscopic techniques can be implemented in the software tools presently available and used to improve hydrographic data visualisations.

 

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