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Application of a technique, based on local image homogeneity, to delineate spatial objects in satellite images

An object detection technique, employing a pixel bonding process guided by a local image homogeneity measure, has been used to delineate spatial objects in remotely-sensed images. The technique is based on an earlier technique, originally designed for sea ice mapping in the Arctic, and has been evaluated for more general application in the remote sensing field by attempting to use it to solve object delineation problems in two different environmental remote sensing applications. The first application involved the delineation and subsequent analysis of icebergs in synthetic aperture radar images of the Antarctic coastline. The second application involved the automated tracing of paddock boundaries in SPOT images of agricultural areas in Tasmania.