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基于内容的音频检索算法研究 被引量:7

Algorithms of indexing of audio data based on content
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摘要 随着音频检索需求的提高,传统数据库越来越不能满足音频检索的需求,基于内容的音频检索的研究变得越来越重要。因此对音频特征的直方图表示及音频索引二叉树进行了调查,在此基础上详细描述了基于音频索引二叉树的检索算法(包括统一格式算法、非统一格式算法、部分匹配算法、虚拟节点算法),分析这些算法的时间复杂度,为下一步研究做准备。 Content-based indexing of audio (and multimedia) data has become more important since conventional databases cannot provide the necessary efficiency and performance. The histogram-based feature and the construction of the binary tree of a histogram-based feature are introduced. The algorithms based on the binary tree of a histogram-based feature are introduced, including search-by- restricted-format (SBRF) algorithm, search-by-unrestricted-formatted (SBUF) algorithm, the partial-matching (PM) algorithm and the virtual-node (VN) algorithm. And the time complexity of the algorithms is analyzed.
作者 刘维华 崔涛
出处 《计算机工程与设计》 CSCD 北大核心 2006年第16期3003-3006,共4页 Computer Engineering and Design
关键词 音频特征直方图 音频索引二叉树 统一格式算法 非统一格式算法 部分匹配算法 虚拟节点算法 histogram-based feature binary treeofhistogram-basedfeature SBRF SBUF PM VN
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参考文献7

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