The effect of thresholding a maximum likelihood classifier on the accuracy of a landsat classification of a forested wetland

dc.contributor.authorAgnello, Jennie M.en
dc.contributor.committeechairSmith, James L.en
dc.contributor.committeememberCampbell, James B. Jr.en
dc.contributor.committeememberJohnson, Steven D.en
dc.contributor.departmentForestryen
dc.date.accessioned2014-03-14T21:49:32Zen
dc.date.adate2012-11-14en
dc.date.available2014-03-14T21:49:32Zen
dc.date.issued1987-08-05en
dc.date.rdate2012-11-14en
dc.date.sdate2012-11-14en
dc.description.abstractAlthough the maximum likelihood classifier is a popular classification technique, there is an inherent problem associated with the 100% classification of a scene. This is because there will inevitably be pixels within a study area that have a low probability of belonging to any of the predefined categories. The focus of this research was to locate these low probability pixels and observe their affect on classification accuracy. This was done by performing supervised classifications at various threshold levels using two methods of classification training combined category training site statistics and separated category training site statistics. In general, it was found that a majority of the scene was classified at very low probabilities but the accuracy of the resulting classifications was much greater than the low probabilities would suggest.en
dc.description.degreeMaster of Scienceen
dc.format.extentviii, 107 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-11142012-040055en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11142012-040055/en
dc.identifier.urihttp://hdl.handle.net/10919/45649en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1987.A384.pdfen
dc.relation.isformatofOCLC# 17315681en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1987.A384en
dc.subject.lcshLandsat satellitesen
dc.subject.lcshWetlands -- Virginiaen
dc.titleThe effect of thresholding a maximum likelihood classifier on the accuracy of a landsat classification of a forested wetlanden
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineForestryen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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