文献类型：期刊文献

英文题名：An information hiding algorithm for speech perceptual hashing authentication system in G.729 bitstream

作者：Zhang, Qiu-Yu[1]; Yu, Shuang[1]; Chen, Ning[2]; Hu, Wen-Jin[1]; Qiao, Si-Bin[1]

机构：[1] School of Computer and Communication, Lanzhou University of Technology, Lanzhou, Gansu, 730050, China; [2] School of Information Science and Technology, East China University of Science and Technology, Shanghai, 200237, China

年份：2016

卷号：7

期号：5

起止页码：1031

外文期刊名：Journal of Information Hiding and Multimedia Signal Processing

收录：EI(收录号：20163302704789)

语种：英文

外文关键词：Binary sequences - Efficiency - Authentication - Codes (symbols)

摘要：Aiming at the problem that how to hide and transmit perceptual hash value efficiently in mobile environment, based on matrix coding, an information hiding algorithm for speech perceptual hashing authentication system in G.729 bitstream was proposed in this paper. This algorithm employs matrix coding to embed perceptual hash values in the least significant bits of G.729 frames which are selected by the perceptual evaluation of the speech quality (PESQ) to carry secret data with less impact on the quality of decoded speech. Experimental results show that the proposed algorithm had good transparency (the average PESQ score was 3.76 and the loss of PESQ was less than 4%), higher embedding efficiency (the embedding efficiency was 2.56), and superb algorithm efficiency that satisfies the real-time performance requirement of the speech perceptual hashing authentication in G.729 bitstream. ? 2016, Ubiquitous International. All Rights Reserved.