STUDY ON AUDIO INFORMATION HIDING METHOD BASED ON MODIFIED PHASE PARTITION

查看全文 作　　者：[1]TongMing;[1]HaoChongyang;[2]LiuXiaojun;[3]ChenYanpu

机构地区：[1]InstituteofElectronicandInfo.Eng.,NorthwesternPolytechnicalUniv.,Xi'an710072,China;[2]SchoolofElectronicEngineering,XidianUniversity,Xi'an710071,China;[3]Xi'anCommunicationInstitute,Xi'an710106,China

出　　处：《Journal of Electronics(China)》索引2005年第22卷第3期,共5页

摘　　要：Hiding efficiency of traditional audio information hiding methods is always low since the sentience similarity cannot be guaranteed. A new audio information hiding method is proposed in this letter which can impose the insensitivity with the audio phase for auditory and realize the information hiding through specific algorithm in order to modify local phase within the auditory perception. The algorithm is to introduce the operation of 'set 1' and 'set 0' for every phase vectors, then the phases must lie on the boundary of a phase area after modified. If it lies on '1' boundary, it comes by set 1 operation. If it lies on '0' boundary, it comes by set 0 operation. The results show that, compared with the legacy method, the proposed method has better auditory similarity, larger information embedding capacity and lower code error rate. As a kind of blind detect method, it fits for application scenario without channel interference. 关键词：声频信号信息隐藏听知觉相位编码

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STUDY ON AUDIO INFORMATION HIDING METHOD BASED ON MODIFIED PHASE PARTITION

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