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1. 发明申请

US20130046399A1 Methods and Apparatus for Detecting a Repetitive Pattern in a Sequence of Audio Frames 有权
标题翻译：用于检测音频帧序列中的重复模式的方法和装置
公开(公告)号：US20130046399A1
公开(公告)日：2013-02-21
申请号：US13564302
申请日：2012-08-01
申请人： Lie Lu , Bin cheng
发明人： Lie Lu , Bin cheng
IPC分类号： G06F17/00
CPC分类号： G06F17/30743 , G10L25/03 , G10L25/45 , G10L25/51
摘要： Methods and apparatus for detecting a repetitive pattern in a sequence of audio frames are described. Similarity values of a first similarity matrix with first resolution for the sequence are calculated. An adaptive threshold is estimated from the similarity values for classifying the similarity values into repetition or non-repetition. For each of one or more offsets of a second similarity matrix with second resolution higher that the first resolution, similarity values of the second similarity matrix corresponding to the offset are calculated. Then the calculated similarity values are binarized with the adaptive threshold to obtain binarized data. Finally, the repetitive pattern is detected from the binarized data. The requirement on memory may be reduced because less data are stored in detecting the repetitive pattern.
摘要翻译：描述了用于检测音频帧序列中的重复模式的方法和装置。计算具有序列的第一分辨率的第一相似矩阵的相似度值。从相似性值估计自适应阈值，用于将相似度值分类为重复或非重复。对于具有第二分辨率高于第一分辨率的第二相似度矩阵的一个或多个偏移中的每一个，计算与偏移相对应的第二相似度矩阵的相似度值。然后将所计算的相似度值用自适应阈值二值化，以获得二值化数据。最后，从二值化数据中检测重复模式。可以减少对存储器的要求，因为在检测重复模式时存储较少的数据。

2. 发明授权

US09547715B2 Methods and apparatus for detecting a repetitive pattern in a sequence of audio frames 有权
标题翻译：用于检测音频帧序列中的重复模式的方法和装置
公开(公告)号：US09547715B2
公开(公告)日：2017-01-17
申请号：US13564302
申请日：2012-08-01
申请人： Lie Lu , Bin cheng
发明人： Lie Lu , Bin cheng
IPC分类号： G06F17/30 , G10L25/51 , G10L25/03 , G10L25/45
CPC分类号： G06F17/30743 , G10L25/03 , G10L25/45 , G10L25/51
摘要： Methods and apparatus for detecting a repetitive pattern in a sequence of audio frames are described. Similarity values of a first similarity matrix with first resolution for the sequence are calculated. An adaptive threshold is estimated from the similarity values for classifying the similarity values into repetition or non-repetition. For each of one or more offsets of a second similarity matrix with second resolution higher that the first resolution, similarity values of the second similarity matrix corresponding to the offset are calculated. Then the calculated similarity values are binarized with the adaptive threshold to obtain binarized data. Finally, the repetitive pattern is detected from the binarized data. The requirement on memory may be reduced because less data are stored in detecting the repetitive pattern.
摘要翻译：描述了用于检测音频帧序列中的重复模式的方法和装置。计算具有序列的第一分辨率的第一相似矩阵的相似度值。从相似性值估计自适应阈值，用于将相似度值分类为重复或非重复。对于具有第二分辨率高于第一分辨率的第二相似度矩阵的一个或多个偏移中的每一个，计算与偏移相对应的第二相似度矩阵的相似度值。然后将所计算的相似度值用自适应阈值二值化，以获得二值化数据。最后，从二值化数据中检测重复模式。可以减少对存储器的要求，因为在检测重复模式时存储较少的数据。

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