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A semi-automated line tracing technique for monitoring ice margins in Antarctic images


Collings, AD and Williams, RN and Young, NW and Hyland, G, A semi-automated line tracing technique for monitoring ice margins in Antarctic images, International Journal of Remote Sensing, 27, (1-2) pp. 433-448. ISSN 0143-1161 (2006) [Refereed Article]

DOI: doi:10.1080/01431160500264444


The current shape and rate of change of the margins of the Antarctic ice sheet are poorly known. Since polar regions are inhospitable, remotely sensed images provide an invaluable data source for studying the ice margin. These images can be examined by a human expert or processed automatically by a computer. This paper describes the design and implementation of a semi-automated technique to trace ice margins in Synthetic Aperture Radar images. The technique is based on a deformable contour model derived from the Kass et al. active contour model and Lobregt and Viergever's discrete dynamic contour. The contour is initialized by the user, to approximate the margin, and the deformation process causes the contour to accurately mould itself to the shape of the margin. The technique has been tested on a number of different images, with acceptable results in most cases. © 2006 Taylor & Francis.

Item Details

Item Type:Refereed Article
Research Division:Information and Computing Sciences
Research Group:Computer vision and multimedia computation
Research Field:Computer vision
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Adaptation to climate change
Objective Field:Social impacts of climate change and variability
UTAS Author:Collings, AD (Mr Adam Collings)
UTAS Author:Williams, RN (Dr Ray Williams)
UTAS Author:Young, NW (Mr Neal Young)
UTAS Author:Hyland, G (Dr Glenn Hyland)
ID Code:41970
Year Published:2006
Deposited By:Computing
Deposited On:2006-08-01
Last Modified:2009-08-19

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