Search audio data with the wavelet pyramidal algorithm

Search audio data with the wavelet pyramidal algorithm
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DOI:
10.1016/j.ipl.2004.01.020
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发表时间:
2004-07-16
影响因子:
0.5
通讯作者:
Hou, YB
Hou, YB
中科院分区:
计算机科学4区
文献类型:
--
作者:
Li, Y;Hou, YB

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为了解决多媒体音频数据的实例查询问题,分析了小波多分辨率的特点,提出了一种基于小波多分辨率金字塔算法的音频数据查询方法。首先对100个音频数据文件进行预处理,将其转换为包含音频数据和查询数据的小波系数文件。然后,我们搜索这些小波系数文件使用不同的层次金字塔算法。通过与基于小波近似系数算法的方法进行比较,发现该方法在不影响检索精度的前提下,具有高效性和减少搜索时间的优点。(C)2004年由Elsevier B.V.出版
To solve the problem of query-by-example in multimedia audio data, we analyze the characteristics of wavelet multiresolution, and propose a method for searching audio data using wavelet multiresolution pyramidal algorithm. First, we preprocess 100 audio data files by transforming them into wavelet coefficient files with audio data and query data. And then we search these wavelet coefficient files using the different hierarchy pyramidal algorithms. By comparing our method with the method using wavelet approximate coefficient algorithms, we found that our method is highly efficient and reduces the search time without influencing the retrieval precision. (C) 2004 Published by Elsevier B.V.