A Comparison of Seafloor Classification Methods Through the Use ...
A Comparison of Seafloor Classification Methods Through the Use ...
A Comparison of Seafloor Classification Methods Through the Use ...
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Benthic <strong>Classification</strong> <strong>Methods</strong><br />
<strong>Seafloor</strong> <strong>Classification</strong> efforts falls behind that <strong>of</strong> terrestrial classification because <strong>of</strong> <strong>the</strong><br />
nature <strong>of</strong> collecting observational data under water (Difficult to collect, $$$, Time)<br />
Types <strong>of</strong> data available:<br />
– Sample collection, <strong>the</strong> acquisition <strong>of</strong> remotely sensed data (sidescan sonar, multibeam<br />
sonar, seismic), and observational video groundtruth data<br />
Common types <strong>of</strong> classification:<br />
By single variable<br />
– Depth<br />
– Substrate<br />
Image classification techniques:<br />
– Spatial analysis<br />
• Spatial filtering<br />
• Digital Elevation Model (DEM) derivatives (slope, aspect, plan, pr<strong>of</strong>ile)<br />
Previous work on <strong>the</strong> Oregon seafloor Conducted @ Heceta Bank ( Nasby-Lucas et<br />
al., 2002; Whitmire, 2003).<br />
July 17 th , 2006 MS Thesis Defense