Effects of grid lattice geometry on digital image filtering

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dc.contributor.authorBrown, Roger Owenen
dc.contributor.committeecochairJohnson, Steven D.en
dc.contributor.committeecochairKottman, Clifforden
dc.contributor.committeememberMcEwen, Robert B.en
dc.contributor.committeememberScoop, David S.en
dc.contributor.departmentCivil Engineeringen
dc.date.accessioned2014-03-14T20:43:04Zen
dc.date.adate2012-08-09en
dc.date.available2014-03-14T20:43:04Zen
dc.date.issued1989-04-05en
dc.date.rdate2013-01-30en
dc.date.sdate2012-08-09en
dc.description.abstractThe spatial distribution of discrete sample points from an image affect digital image manipulation. The geometries of the grid lattice and edge are described for digital images. Edge detecting digital filters are considered for segmenting an image. A comparison is developed between digital filters for two different digital image grid lattice geometries — 8-neighbor grid lattice (rectangular tesselation) and the 6-neighbor grid lattice (hexagonal tesselation). Digital filters for discrete images are developed that are best approximations to the Laplacian operator applied to continuous two- dimensional mathematical surfaces. Discrepancies between the calculated Laplacian and the digital filtering results are analyzed and a criterion is developed that compares grid lattice effects. The criterion shows that digital filtering in a 6-neighbor grid lattice is preferable to digital filtering in an 8-neighbor grid lattice.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 144 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-08092012-040013en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-08092012-040013/en
dc.identifier.urihttp://hdl.handle.net/10919/34442en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1989.B767.pdfen
dc.relation.isformatofOCLC# 20060642en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1989.B767en
dc.subject.lcshImage processing -- Digital techniquesen
dc.titleEffects of grid lattice geometry on digital image filteringen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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