Subpixel accuracy image registration with application to unsteadiness correction

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buir.advisorErdem, Tanju
dc.contributor.authorEroğlu, Çiğdem
dc.date.accessioned2016-01-08T20:14:03Z
dc.date.available2016-01-08T20:14:03Z
dc.date.issued1997
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionCataloged from PDF version of article.
dc.descriptionAnkara : Department of Electrical and Electronics Engineering and the Institute of Engineering and Science of Bilkent Univ., 1997.en_US
dc.descriptionThesis (Master's) -- Bilkent University, 1997.en_US
dc.descriptionIncludes bibliographical refences (leaves 78-83).en_US
dc.description.abstractImage registration refers to the problem of spatially aligning the images in an image sequence. The proposed efficient search method estimates the subpixel displacements causing the misregistration of two frames faster than other methods without any loss in accuuracy. It is assumed that the misregistration is due to global motion. The criterion function used is the mean-squared error over the displaced frames in which image intensities at subpixel locations are evaluated using bilinear interpolation only once in the formula. A novel nearclosed-form solution does not use any search unless absolutely necessary. An extension of the near-closed-form solution that is insensitive to intensity variations between the frames can account for contrast and brightness changes in a sequence. Simulations on unsteady image sequences demonstrate the superiority of the proposed near closed-form solution. The application to de-interlacing also gives good results.
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityby Çiğdem Eroğlu en_US
dc.format.extent83 leaves : illustrations ; 30 cm.en_US
dc.identifier.itemidB036713
dc.identifier.urihttp://hdl.handle.net/11693/17858
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectImage registration
dc.subjectSubpixel accuracy
dc.subjectSubpixel registration
dc.subjectMotion estimation
dc.subjectDisplacement estimation
dc.subjectSequence stabilization
dc.subjectUnsteadiness correction
dc.titleSubpixel accuracy image registration with application to unsteadiness correctionen_US
dc.title.alternativeKesirli imge öğesi doğruluğunda imge hizalama ve bunun titrek imge dizilerinin sabitlenmesinde uygulanması
dc.typeThesisen_US

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