DC FieldValueLanguage
dc.contributor.authorNtalianis, Klimis-
dc.contributor.authorRaftopoulos, Konstantinos A.-
dc.contributor.authorKollias, Stefanos-
dc.contributor.authorTzouveli, Paraskevi-
dc.date.accessioned2024-10-16T10:32:00Z-
dc.date.available2024-10-16T10:32:00Z-
dc.date.issued2010-10-29-
dc.identifierscopus-78650868307-
dc.identifier.isbn978-1-4503-0157-2-
dc.identifier.other78650868307-
dc.identifier.urihttps://uniwacris.uniwa.gr/handle/3000/2832-
dc.description.abstractPlain rotation, scaling, and/or translation of an image can lead to loss of watermark synchronization and thus authentication failure. The block based approaches in particular are sensitive to geometric distortions due to the need for repositioning the block's rectangular grid. In this paper, we propose a novel block based approach for watermarking image objects in a way that is invariant to RST distortions. With the term "image object" we refer to semantically contiguous parts of images that have a specific contour boundary. The proposed approach is based on shape information since the watermark is embedded in image blocks, the location and orientation of which is defined by Eulerian tours that are appropriately arranged in layers, around the object's skeleton. The skeleton of the object (MAT transform) is defined by the shape of its boundary and not only is invariant to RST transformations but is also robust to cropping, clipping and other common deformation attacks. Results on the Caltech database are reported, showing the advantages of the proposed scheme.en_US
dc.language.isoenen_US
dc.relation.ispartofMiFor'10: Proceedings of the 2nd ACM workshop on Multimedia in forensics, security and intelligenceen_US
dc.subjectEulerian touren_US
dc.subjectMATen_US
dc.subjectObject based watermarkingen_US
dc.subjectSkeletonen_US
dc.titleSemantic object watermark re-synchronization based on skeleton vertex correspondsen_US
dc.typeConference Paperen_US
dc.relation.conference2nd ACM workshop on multimedia in forensics, security and intelligence (MiFor 2010), 29 October 2010, Firenze, Italyen_US
dc.identifier.doi10.1145/1877972.1877979en_US
dc.identifier.scopus2-s2.0-78650868307-
dcterms.accessRights0en_US
dc.relation.deptDepartment of Business Administrationen_US
dc.relation.facultySchool of Administrative, Economics and Social Sciencesen_US
dc.identifier.spage13en_US
dc.identifier.epage18en_US
dc.collaborationUniversity of West Attica (UNIWA)en_US
dc.journalsOpen Accessen_US
dc.publicationPeer Revieweden_US
dc.countryGreeceen_US
local.metadatastatusnot verifieden_US
item.cerifentitytypePublications-
item.languageiso639-1en-
item.openairetypeConference Paper-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
item.grantfulltextnone-
crisitem.author.deptDepartment of Business Administration-
crisitem.author.facultySchool of Administrative, Economics and Social Sciences-
crisitem.author.parentorgSchool of Administrative, Economics and Social Sciences-
Appears in Collections:Book Chapter / Κεφάλαιο Βιβλίου
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