Philips乐曲检索系统之特征提取算法实现
1）概述了现有的音频指纹提取的发展趋势
2）基于Matlab 的Philips 算法仿真，得出实验结果
关键词： 音频检索；音频指纹；Philips算法
A Highly Robust Audio Fingerprinting System
Abstract: The Popularity of the Internet,the ubiquity of high-storage devices, the Proliferation of Peer-to-Peer networks and world-wide low-latency networks has dramatically increased digital audio growth and access.But meanwhile,it is time-consuming and error-prone to manage collections of audio assets,which direct access to the rapid development of digital audio finger printing.Digital audio fingerprinting is a robust content- based compact signature that summarizes an audio recording.It is typically used for music copyright enforcement,automatic music Identification and audio verification.
This thesis introduces the audio finger print technology background,basic concepts and general framework.The key technique of digital audio finger printing are researched,and the main works areas follows:
l)This thesis summarizes most state of the art audio fingerprinting algorithms and
conducts an in-depth study of one effective extraction algorithm based on STFT.
2)Simulation for the Philips audio fingerprinting algorithm.
Keywords: Keyword1; Keyword2; Keyword3; Keyword4; Keyword5
目录
摘要 i
Abstract i
目录 ii
1 绪论 1
1.1 数字音频指纹技术的产生背景及基本概念 1
1.1.1 指纹技术的产生背景 1
1.1.2 指纹技术的基本概念 1
1.2 数字音频指纹的应用 2
1.2.1 音乐识别 2
1.2.2 音频认证 3
1.2.3 音频内容控制和跟踪 3
1.2.4 增值服务 3
1.2.5 其他应用 3
2 数字音频指纹技术概述 5
2.1 引言 5
2.2 数字指纹与传统哈希函数的区别 5
2.3 音频指纹使用模式 6
2.3.1 音频识别 6
2.3.2 音频认证 6
2.3.3 辅助水印技术 7
2.3.4 基于内容的音频检索和处理 7
2.4 音频指纹的性质 7
2.5 音频指纹算法基本框架 8
2.5.1 前端处理 9
2.5.2 指纹的模型化 12
2.5.3 数据库搜索和比对算 13
2.6 指纹的评价方法 15
2.6.1 应用于音频识别的指纹评价 15
2.6.2 应用于音频质量认证的指纹评价 15
2.6.3 鲁棒性的测试标准 16
2.7 常用音频处理 17
3 基于Matlab 的Philips 指纹识别算法仿真 18
3.1 模型提取音频指纹的算法流程 18
3.2 实验结果 20
致谢 22
参考文献 23