A Quad Edge-Based Grid Encoding Model for Content-Aware Image Retargeting

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dc.contributor.authorKim, Yoonhyungko
dc.contributor.authorEun, Hyunjunko
dc.contributor.authorJung, Chanhoko
dc.contributor.authorKim, Changickko
dc.date.accessioned2019-12-13T01:24:54Z-
dc.date.available2019-12-13T01:24:54Z-
dc.date.created2018-08-17-
dc.date.issued2019-12-
dc.identifier.citationIEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, v.25, no.12, pp.3202 - 3215-
dc.identifier.issn1077-2626-
dc.identifier.urihttp://hdl.handle.net/10203/268807-
dc.description.abstractIn this paper, we present a novel grid encoding model for content-aware image retargeting. In contrast to previous approaches such as vertex-based and axis-aligned grid encoding models, our approach takes each horizontal/vertical distance between two adjacent vertices as an optimization variable. Upon this difference-based encoding scheme, every vertex position of a target grid is subsequently determined after optimizing the one-dimensional values. Our quad edge-based grid model has two major advantages for image retargeting. First, the model enables a grid optimization problem to be developed in a simple quadratic program while ensuring the global convexity of objective functions. Second, due to the independency of variables, spatial regularizations can be applied in a locally adaptive manner to preserve structural components. Based on this model, we propose three quadratic objective functions. Note that, in our work, their linear combination guides a grid deformation process to obtain a visually comfortable retargeting result by preserving salient regions and structural components of an input image. Comparative evaluations have been conducted with ten existing state-of-the-art image retargeting methods, and the results show that our method built upon the quad edge-based model consistently outperforms other previous methods both on qualitative and quantitative perspectives.-
dc.languageEnglish-
dc.publisherIEEE COMPUTER SOC-
dc.titleA Quad Edge-Based Grid Encoding Model for Content-Aware Image Retargeting-
dc.typeArticle-
dc.identifier.wosid000494341300001-
dc.identifier.scopusid2-s2.0-85051828619-
dc.type.rimsART-
dc.citation.volume25-
dc.citation.issue12-
dc.citation.beginningpage3202-
dc.citation.endingpage3215-
dc.citation.publicationnameIEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS-
dc.identifier.doi10.1109/TVCG.2018.2866106-
dc.contributor.localauthorKim, Changick-
dc.contributor.nonIdAuthorJung, Chanho-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorComputational modeling-
dc.subject.keywordAuthorVisualization-
dc.subject.keywordAuthorStrain-
dc.subject.keywordAuthorOptimization-
dc.subject.keywordAuthorDistortion-
dc.subject.keywordAuthorEncoding-
dc.subject.keywordAuthorAdaptation models-
dc.subject.keywordAuthorImage retargeting-
dc.subject.keywordAuthor2D grid deformation-
dc.subject.keywordAuthorsaliency detection-
dc.subject.keywordAuthorline segment detection-
dc.subject.keywordAuthorimage quality assessment-
dc.subject.keywordPlusPRESERVING APPROACH-
dc.subject.keywordPlusQUALITY ASSESSMENT-
dc.subject.keywordPlusDEFORMATION-
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