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ID:36602002
大小:7.29 MB
页数:66页
时间:2019-05-12
《基于Simmons门限方案的视频水印技术》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西安电子科技大学学位论文独创性(或创新性)声明秉承学校严谨的学风和优良的科学道德,本人声明所呈交的论文是我个人在导师指导下进行的研究工作及取得的研究成果。尽我所知,除了文中特别加以标注和致谢中所罗列的内容以外,论文中不包含其他人已经发表或撰写过的研究成果:也不包含为获得西安电子科技大学或其它教育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何贡献均已在论文中做了明确的说明并表示了谢意。申请学位论文与资料若有不实之处,本人承担一切的法律责任。2N,K答名:蛆&.关于论文使用授权的说明
2、本人完全了解西安电子科技大学有关保留和使用学位论文的规定,即:研究生在校攻读学位期间论文工作的知识产权单位属西安电子科技大学。学校有权保留送交论文的复印件,允许查阅和借阅论文;学校可以公布论文的全部或部分内容,可以允许采用影印、缩印或其它复制手段保存论文。同时本人保证,毕业后结合学位论文研究课题再攥写的文章一律署名单位为西安电子科技大学。(保密的论文在解密后遵守此规定)本人签名:导师签名:AbstractWiththerapiddevelopmentmultimediaandInternettechn
3、ology,thenetworkbandwidthhasgreatlyimproved.Moreandmoredigitalworks,suchasimages,audioandvideoiswidelyspreadontheInternet.Ontheotherhand,italsocausedmanycopyrightinfringementproblems.Inrecentyears,threenetsfusion,cloudcomputingandothertechnologyhasmadet
4、hecopyrightprotectionbecomesmoreurgent.Digitalwatermarkingtechnologyisallimportantsolutionforcopyrightprotection.ThesepapermainlyresearchedtherobustvideowatermarkschemewhichiscombingtheH.264standard.Themainworksofthispaperareasfollows:Firstofall,inthisp
5、aper,therelatedtechnologyaboutdigitalvideowatermarkisdescribedindetail,suchasthesituationofthedigitalvideowatermarking,theintroductionaboutH.264.Inaddition,accordingtothesecretsharingscheme,thispaperproposesamodifiedschemeofSimmonsthresholdsecretimagesh
6、aringforh.264videowatermarkingsystem.Inthealgorithm,theoriginalwatermarkimageisdividedintonsecretimages.Anytsecretimages(t7、econdly,anotheralgorithmwillbeproposedinthispaperinordertoreduceerrordriftinh.264intralumapredictionmode.111isalgorithmCanbeusedtoeffectivelyselectthewatermarkembeddingpositiontoreducetheerrordrift.Finally,theproposedschemeisrealizedbyMatlabandClanguage8、programming.Thereisaseriessimulationtestsuchasinvisible,anti-weight-basedattacks,anti—noiseattackandattacksagainstframeerasingandaquantitativeanalysisfortestresultsandqualitativeanalysiscomparedwithotheralgorithms。Experimentalres
7、econdly,anotheralgorithmwillbeproposedinthispaperinordertoreduceerrordriftinh.264intralumapredictionmode.111isalgorithmCanbeusedtoeffectivelyselectthewatermarkembeddingpositiontoreducetheerrordrift.Finally,theproposedschemeisrealizedbyMatlabandClanguage
8、programming.Thereisaseriessimulationtestsuchasinvisible,anti-weight-basedattacks,anti—noiseattackandattacksagainstframeerasingandaquantitativeanalysisfortestresultsandqualitativeanalysiscomparedwithotheralgorithms。Experimentalres
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