文章基本信息

标题：Inferring ice-flow directions from single ice-sheet surface images using the Radon transform
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作者：Jason L. Roberts ; Roland C. Warner ; Adam Treverrow 等
期刊名称：Journal of Glaciology
印刷版ISSN：0022-1430
电子版ISSN：1727-5652
出版年度：2013
卷号：59
期号：213
页码：129-136
DOI：10.3189/2013JoG12J042
出版社：Cambridge University Press
摘要：We present a new method for extracting the direction of surface flow for ice sheets, based on the detection of flow-induced features that are visible in satellite imagery. The orientation of linear features is determined using a Radon transform and only requires a single image. The technique is demonstrated by applying it to the RADARSAT mosaic of Antarctica, over the Lambert Glacier–Amery Ice Shelf region of East Antarctica. Comparisons with both existing flow-direction fields and traced streamlines over the same area provide an evaluation of the method. We also illustrate its application to Landsat 7 imagery.