{"created":"2022-01-27T07:52:56.322663+00:00","id":2004041,"links":{},"metadata":{"_buckets":{"deposit":"4926e0e8-0454-4523-85e2-7edb53f0b6ab"},"_deposit":{"id":"2004041","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2004041"},"status":"published"},"_oai":{"id":"oai:u-ryukyu.repo.nii.ac.jp:02004041","sets":["1642837622505:1642837855274:1642837880629","1642838403551:1642838406845"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_1551255647225":"Multi-color channel video watermarking","subitem_1551255648112":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Mirza, Hanane H.","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Thai, Hien D.","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Nakao, Zensho","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"仲尾, 善勝","creatorNameLang":"ja"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_1522299639480":"open access","subitem_1600958577026":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"Multimedia protection"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"Video watermarking"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"PCA"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"Color channels"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"Embedding a digital watermark in an electronic document is proving to be a feasible solution for multimedia copyright protection and authentication purposes. In the present paper we propose a new digital video watermarking scheme based on Principal Component Analysis. We detect the video shots based on informational content, and color similarities; we extract the key frames of each shot and each keyframe is composed of three color channels, and our proposed algorithm allows us to embed a watermark in the three color channels RGB of an input video file. The preliminary results show a high robustness against most common video attacks, especially frame dropping, cropping and recalling for a good perceptual quality.","subitem_description_type":"Other"},{"subitem_description":"紀要論文","subitem_description_type":"Other"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_1522300295150":"ja","subitem_1522300316516":"琉球大学工学部"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_1551255818386":"eng"}]},"item_1617186783814":{"attribute_name":"Identifier","attribute_value_mlt":[{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/20.500.12000/7087"}]},"item_1617186920753":{"attribute_name":"Source Identifier","attribute_value_mlt":[{"subitem_1522646500366":"ISSN","subitem_1522646572813":"0389-102X"},{"subitem_1522646500366":"NCID","subitem_1522646572813":"AN0025048X"}]},"item_1617186941041":{"attribute_name":"Source Title","attribute_value_mlt":[{"subitem_1522650068558":"ja","subitem_1522650091861":"琉球大学工学部紀要"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-05","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"69","bibliographicPageEnd":"69","bibliographicPageStart":"65"}]},"item_1617258105262":{"attribute_name":"Resource Type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_1617265215918":{"attribute_name":"Version Type","attribute_value_mlt":[{"subitem_1522305645492":"VoR","subitem_1600292170262":"http://purl.org/coar/version/c_970fb48d4fbd8a85"}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","filename":"No69p65.pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://u-ryukyu.repo.nii.ac.jp/record/2004041/files/No69p65.pdf"},"version_id":"227a14fd-c4ba-4b8e-941a-688ec98b14a9"}]},"item_title":"Multi-color channel video watermarking","item_type_id":"15","owner":"1","path":["1642837880629","1642838406845"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-09-02"},"publish_date":"2008-09-02","publish_status":"0","recid":"2004041","relation_version_is_last":true,"title":["Multi-color channel video watermarking"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-10-31T01:49:33.699456+00:00"}