用于音頻內(nèi)容保護(hù)的數(shù)字水印算法研究.pdf

1、哈爾濱工程大學(xué)碩士學(xué)位論文用于音頻內(nèi)容保護(hù)的數(shù)字水印算法研究姓名：朱海峰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：趙春暉20050101晗爾濱：翻鼙大學(xué)碩士學(xué)靛論文■IIIIIIIIIIIIIIIII■■●■■■■■●●■■■■■■■■■■■●●■●■■■■■■●●rAbstractRecentlywiththerapiddevelopmentofdigitaltechniques，multimediaproductssuch翳i

2、mage，video，audio，havebeenpopularizedandappliedincreasinglyandwidelytheeff囂ciencyandcorrectionofcommunicationhavebeenimprovedclearlyButthesideeffectwithitisthatsomepersonsandorganizationsCaneasilycopyeditandtransmitthecon

3、tentwithoutthepermissionofthecopyrightownership。So，howtotakemeasurestoenablecopy娃ghtprotectionandinformationsafetyinthenetwork，hasbecomeaproblemthatshouldbesolvedimmediatelyDigitalwatermarkingtechniqueisthemosteffectivem

4、ethodtosolvecopyrightownershipButthecurrentwatermarkaigorithmsappliedwidelyarerelatedwithimageandvideoWiththepopularityofthenewcompressionmodelmp3，moreimportancemustbeputonthecopyrightofaudio髓isdissertationselectstwo—dim

5、ensionbinaryimageaswatermarkinformationandselectsaudioasembeddingobjectandembedthewatermarkinthecoefficientoftheDFTdomain，theDCTdomain，theDWTdomainThemainresearchworkandcontributionsofthedissertationareasfollows：(1)Thisd

6、issertationreviewstherelativeiSSucsandCl蛙T@ntresearchstatus(2)(3)(4)offragiledigitalwatermark弧ispaperintroducessomequantificationmethodsforfragiledigitalwatermark，Inthediscretecosinedomain，thewatermarkisembeddedbyquantil

7、yingthecoefficientoftheDCTdomainandwatermarkcanbeextractedwithouttheoriginalaudio，ItimprovesthesecurityoffragilewatermarkapplyingArnoldtransformforwatermarkInthediscretewavelettransformdomain，thewatermarkinformationiSemb