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1、大連理工大學(xué)博士學(xué)位論文信息安全中的信息隱藏理論和方法研究姓名：孔祥維申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：管理科學(xué)與工程指導(dǎo)教師：楊德禮20030301AbstractThedigitalinformationrevolutionhasbroughtprofoundchangesintooursocietyandlife．TheprevalenceofdigitalmediaandIntemethasgeneratedgreatchallengesaswellasopportunitiesforinnovation．Digitalproductscopyrightprotecti
2、on，informationcontentsecurityandsecuritycommunicationmakeinformationhidingthatisanewscienceandartofinformationsecurityfield．Asalleffectivetechniqueusedforconvertcommunicationandcopyrightprotection，informationhidinghasdrawnalotofattentionoverthepastfeWyearsinthefieldofinformationsecurity
3、．Thisthesisdiscussestheissuesregardingmultimediainformationhidingtheoryandmethodformultimediacopyrightprotectionandsecuritycommunication．Italsoaddressescopyrightprotectionsystemofdigitalproducts，digitalwatermarkingsystem，steganographyevaluationandsteganalysis．Basedonthestudyofdigitalpro
4、ductsdistributionchannelintheIntemetaswellasallparticipants’rightandbenefits，thepaperanalysesthefunctionsofintellectualpropertyprotectiondepartments，suchasmanagement，copyrightorganization，supervisionanddigitalwatermarking．Adigitalproductscopyrightprotectionsystemmodelbasedondigitalwater
5、markinghasbeenproposedasthefinalresultofthispart．【ntherobustdigitalwatermarkingsystemspart．a(chǎn)robustwatermarkingembeddingmechanismandawatermarkingdetectorbasedonminimumerrorratearepresented．Basedontherobustwatermarkingmodel，ambustandblindwatermarkingschemeforprintandSCanimagesandarobustan
6、dblindwatermarkingschemeforimageobjectareproposed．Inthenlirdpart．theessencesofsteganographyanddisadvangesofcommonvisualperceptionevaluation，suchasPSNRandWPSNRarestudied．Basedonanalysislocalerrorthatisintroducedbyembeddinginformation，combiningHVS，threeobjectiveperceptionevaluationmethodf
7、orsteganographyperformanceareproposed，whicharebasedonHumanVisualSystemsandlocalstatisticerrordistributionrespectively．Inthesteganalysispart，asteganographysecuritystatisticattackmodelandmethodsforsomesteganographymethodsarepresented．Accordingtothepresentedsteganalysismodel，asteg
