摘要
Tomakeaudiowatermarkingaccomplishbothcopyrightprotectionandcontentauthenticationwithlocalization,anovelmultipurposeaudiowatermarkingschemeisproposedinthispaper.Thezero-watermarkingideaisintroducedintothedesignofrobustwatermarkingalgorithmtoensurethetransparencyandtoavoidtheinterferencebetweentherobustwatermarkandthesemi-fragilewatermark.ThepropertyofnaturalaudiothattheVQindicesofDWT-DCTcoefficientsamongneighboringframestendtobeverysimilarisutilizedtoextractessentialfeaturefromthehostaudio,whichisthenusedforwatermarkex-traction.And,thechaoticmappingbasedsemi-fragilewatermarkisembeddedinthedetailwaveletcoefficientsbasedontheinstantaneousmixingmodeloftheindependentcomponentanalysis(ICA)system.Boththerobustandsemi-fragilewatermarkscanbeextractedblindlyandthesemi-fragilewatermarkingalgorithmcanlocalizethetamperingaccurately.Simulationresultsdemonstratetheeffectivenessofouralgorithmintermsoftransparency,security,robustnessandtamperinglocalizationability.
出版日期
2008年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
