| 一种基于音频特征的自适应量化数字音频水印算法 |
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| 引用本文： | 赵红,王向阳. 一种基于音频特征的自适应量化数字音频水印算法[J]. 小型微型计算机系统, 2008, 29(2): 337-340 |
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| 作者姓名： | 赵红 王向阳 |
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| 作者单位： | 1. 漳州师范学院,计算机科学系,福建,漳州,363000
2. 辽宁师范大学,计算机与信息技术学院,辽宁,大连,116029 |
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| 摘 要： | 针对传统的固定步长量化方法对不同种类音频载体适应性较差的缺点,提出了一种新的自适应量化步长的数字音频盲水印算法．该算法结合音频载体自身特点自适应确定量化步长,大大增强了算法对不同音频载体的适应性．仿真实验表明,该算法对于不同种类音频载体不仅具有较好的不可感知性,并且对于重采样,重量化,噪声,低通滤波及MP3压缩等攻击都具有较好的鲁棒性.
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| 关 键 词： | 音频水印 有损压缩 自适应量化 量化步长 音频特征 自适应 重量化 数字音频水印算法 Characteristic Digital Audio Watermarking Based Scheme 鲁棒性 压缩 低通滤波 噪声 重采样 不可感知性 仿真实验 同音 增强 合音 盲水印算法 量化步长 |
| 文章编号： | 1000-1220（2008）02-0337-04 |
| 收稿时间： | 2006-10-11 |
| 修稿时间： | 2006-10-11 |
Adaptive Digital Audio Watermarking Scheme Based on Digital Audio Characteristic |
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| ZHAO Hong,WANG Xiang-yang. Adaptive Digital Audio Watermarking Scheme Based on Digital Audio Characteristic[J]. Mini-micro Systems, 2008, 29(2): 337-340 |
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| Authors: | ZHAO Hong WANG Xiang-yang |
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| Affiliation: | ZHAO Hong1,WANG Xiang-yang2 1 (Department of Computer Science.Zhangzhou Normal College,Zhangzhou 363000,China) 2 (School of Computer , Information Technique,Liaoning Normal University,Dalian 116029,China) |
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| Abstract: | The existing quantization audio watermarking algorithms have generally adopted the fixed quantization strategy, which is unavailable for variety kinds of audio. In order to overcome the deficiencies of fixed quantization strategy, a new selfadaptive quantization blind digital audio watermarking is presented in this paper. The proposed method, regulating the quantizatlon step intelligently by utilizing energy characteristic of the audio signals, is remarkably effective in several audio signals. Experimental results show that the proposed watermarking algorithm is imperceptible and robust against various signal processing such as re-sampllng, re-quantifying, noising adding, low pass filtering and MP3 compression. |
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| Keywords: | audio watermarking lossy compression adaptive quantization quantization step |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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