Algorithm Based Editing of Spikes in Multibeam Soundings: A Case Study
Abstract:Using the tracks from November 3 and 6 of the Portsmouth survey as an example, this paper discusses algorithm based editing of spikes in multibeam data as carried out today at the Royal Danish Administration of Navigation and Hydrography (RDANH). A robust version of the MapSpikes test presented in (Eeg, 1995) has been integrated into an in-house developed visual swath editor, VISE. This editor is an open source software (OSS), thus enabling hydrographers to test the efficiency of the algorithm on their own data.
Following a brief description of the MapSpikes test, the robust version of this test is introduced. The problem of false positive identifications of spikes, which is inherent in robust testing, is addressed—at least for a subset of the swath. Finally the findings in the editing session are compared to the editing performed by the surveyors on WHITING of the same files.
Document Type: Research Article
Publication date: December 1, 2001
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