Visualisation of sensor data from animal movement

Authors:
Edward Grundy;Mark W. Jones;Robert S. Laramee;Rory P. Wilson;Emily L. C. Shepard
Affiliations:
Visual Computing Group and Institute of Environmental Sustainability, Swansea University, UK;Visual Computing Group, Swansea University, UK;Visual Computing Group, Swansea University, UK;Institute of Environmental Sustainability, Swansea University, UK;Institute of Environmental Sustainability, Swansea University, UK
Venue:
EuroVis'09 Proceedings of the 11th Eurographics / IEEE - VGTC conference on Visualization
Year:
2009

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Abstract

A new area of biological research is identifying and grouping patterns of behaviour in wild animals by analysing data obtained through the attachment of tri-axial accelerometers. As these recording devices become smaller and less expensive their use has increased. Currently acceleration data are visualised as 2D time series plots, and analyses are based on summary statistics and the application of Fourier transforms. We develop alternate visualisations of this data so as to analyse, explore and present new patterns of animal behaviour. Our visualisations include interactive spherical scatterplots, spherical histograms, clustering methods, and feature-based state diagrams of the data. We study the application of these visualisation methods to accelerometry data from animal movement. The reaction of biologists to these visualisations is also reported.