文献类型：会议论文

英文题名：Digital audio watermarking algorithm based on BTC and chaos encryption

作者：Wu, Weina[1]

机构：[1] School of Mathematics and Computer, Guangdong Ocean University, Haida Road No.1, Mazhang District, Zhanjiang, 524088, China

会议论文集：Proceedings of 2017 9th International Conference on Computer and Automation Engineering, ICCAE 2017

会议日期：February 18, 2017 - February 21, 2017

会议地点：Sydney, NSW, Australia

语种：英文

外文关键词：Image enhancement - Cryptography - Image coding - Watermarking

外文摘要：Block Truncation Coding (BTC) is adopted in this paper to reduce the information quantity of a watermarking image so as to improve the carrying capability of the original audio signal; meanwhile, chaos scrambling is adopted to encrypt the original watermarking information in order to improve watermarking security. The two characteristics of the audio frame, zero-crossing rate and short-time energy, are combined to find the audio frame suitable for watermark embedding. Therefore, the proposed algorithm doesn't need to modify the original audio signal and can realize blind detection during watermark extraction. The result shows that this algorithm has good robustness, imperceptibility and security. ? 2017 ACM.