Generating 3D thumbnails for 3D contents

buir.advisorÇapın, Tolga
dc.contributor.authorYiğit, Yeliz
dc.date.accessioned2016-01-08T18:14:18Z
dc.date.available2016-01-08T18:14:18Z
dc.date.issued2010
dc.descriptionAnkara : The Department of Computer Engineering and the Institute of Engineering and Science of Bilkent University, 2010.en_US
dc.descriptionThesis (Master's) -- Bilkent University, 2010.en_US
dc.descriptionIncludes bibliographical references leaves 74-80.en_US
dc.description.abstractCreating effective thumbnails is a challenging task because finding important features and preserving the quality of the content is difficult. Additionally, as the popularity of 3D technologies is increasing, the usage area of 3D contents and the 3D content databases are expanding. However, for these contents, 2D thumbnails are insufficient since the current methods for generating them do not maintain the important and recognizable features of the content and give the idea of the content. In this thesis, we introduce a new thumbnail format, 3D thumbnail that helps users to understand the content of the 3D graphical scene or 3D video + depth by preserving the recognizable features and qualities. For creating 3D thumbnails, we developed a framework that generates 3D thumbnails for different 3D contents in order to create meaningful and qualified thumbnails. Thus, the system selects the best viewpoint in order to capture the scene with a high amount of detail for 3D graphical scenes. On the other hand, this process is different for 3D videos. In this case, by a saliency-depth based approach, we find the important objects on the selected frame of the 3D video and preserve them. Finally, after some steps such as placement, 3D rendering etc., the resulting thumbnails give more glorified information about the content. Finally, several experiments are presented which show that our proposed 3D thumbnail format is statistically (p <0.05 ) better than 2D thumbnails.en_US
dc.description.provenanceMade available in DSpace on 2016-01-08T18:14:18Z (GMT). No. of bitstreams: 1 0005007.pdf: 19386800 bytes, checksum: ae0c44db739587124986014f3846e9a3 (MD5)en
dc.description.statementofresponsibilityYiğit, Yelizen_US
dc.format.extentxiv, 82 leaves, illustrationsen_US
dc.identifier.itemidB122707
dc.identifier.urihttp://hdl.handle.net/11693/15154
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subject3D thumbnailsen_US
dc.subject3D contentsen_US
dc.subjectBest viewpoint selection,en_US
dc.subjectViewpoint entropyen_US
dc.subjectSaliencyen_US
dc.subjectComputer graphicsen_US
dc.subject.lccT385 .Y545 2010en_US
dc.subject.lcshComputer graphics.en_US
dc.subject.lcshThree-dimensional imaging.en_US
dc.subject.lcshThree-dimensional display processing.en_US
dc.titleGenerating 3D thumbnails for 3D contentsen_US
dc.typeThesisen_US
thesis.degree.disciplineComputer Engineering
thesis.degree.grantorBilkent University
thesis.degree.levelMaster's
thesis.degree.nameMS (Master of Science)

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