Extending the depth of focus using digital image filtering

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dc.contributor.authorHu, Guang-huaen
dc.contributor.committeechairPieper, Ronald J.en
dc.contributor.committeememberPoon, Ting-Chungen
dc.contributor.committeememberClaus, Richard O.en
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:49:33Zen
dc.date.adate2012-11-14en
dc.date.available2014-03-14T21:49:33Zen
dc.date.issued1987-04-15en
dc.date.rdate2012-11-14en
dc.date.sdate2012-11-14en
dc.description.abstractTwo types of image processing methods capable of forming a composite image from a set of image slices which have in-focus as well as out-of-focus segments are discussed. The first type is based on space domain operations and has been discussed in the literature. The second type, to be introduced, is based on the intuitive concept that the spectral energy distribution of a focused object is biased towards lower frequencies after blurring. This approach requires digital image filtering in the spatial frequency domain. A comparison among methods of both types is made using a quantitative uÌ delity criterion.en
dc.description.degreeMaster of Scienceen
dc.format.extentviii, 81 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-11142012-040111en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11142012-040111/en
dc.identifier.urihttp://hdl.handle.net/10919/45653en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1987.H83.pdfen
dc.relation.isformatofOCLC# 16679479en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1987.H83en
dc.subject.lcshDepth of field (Photography)en
dc.subject.lcshImage processing -- Digital techniquesen
dc.titleExtending the depth of focus using digital image filteringen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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