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1. 发明申请

WO2012158333A1 FORENSIC DETECTION OF PARAMETRIC AUDIO CODING SCHEMES 审中-公开
标题翻译：参考音频编码方案的审查
公开(公告)号：WO2012158333A1
公开(公告)日：2012-11-22
申请号：PCT/US2012/035785
申请日：2012-04-30
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB , MUNDT, Harald, H. , BISWAS, Arijit , RADHAKRISHNAN, Regunathan
发明人： MUNDT, Harald, H. , BISWAS, Arijit , RADHAKRISHNAN, Regunathan
IPC分类号： G10L19/00 , G10L21/02
CPC分类号： G10L19/00 , G10L19/008 , G10L21/02 , G10L21/038 , G10L25/03
摘要： The present document relates to audio forensics, notably the blind detection of traces of parametric audio encoding / decoding. In particular, the present document relates to the detection of parametric frequency extension audio coding, such as spectral band replication (SBR) or spectral extension (SPX), from uncompressed waveforms such as PCM (pulse code modulation) encoded waveforms. A method for detecting frequency extension coding history in a time domain audio signal is described. The method may comprise transforming the time domain audio signal into a frequency domain, thereby generating a plurality of subband signals in a corresponding plurality of subbands comprising low and high frequency subbands; determining a degree of relationship between subband signals in the low frequency subbands and subband signals in the high frequency subbands; wherein the degree of relationship is determined based on the plurality of subband signals; and determining frequency extension coding history if the degree of relationship is greater than a relationship threshold.
摘要翻译：本文件涉及音频取证，特别是盲目检测参数音频编码/解码的痕迹。特别地，本文件涉及从诸如PCM（脉冲编码调制）编码波形的未压缩波形检测参数频率扩展音频编码，例如频谱带复制（SBR）或频谱扩展（SPX）。描述了用于检测时域音频信号中的频率扩展编码历史的方法。该方法可以包括将时域音频信号变换成频域，从而在包括低频和高频子带的相应多个子带中产生多个子带信号; 确定低频子带中的子带信号与高频子带中的子带信号之间的关系程度; 其中所述关系度基于所述多个子带信号来确定; 以及如果所述关系度大于关系阈值，则确定频率扩展编码历史。

2. 发明申请

WO2012091935A9 REPETITION DETECTION IN MEDIA DATA 审中-公开
公开(公告)号：WO2012091935A9
公开(公告)日：2012-07-05
申请号：PCT/US2011/065080
申请日：2011-12-15
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB , RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
发明人： RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
IPC分类号： G10H1/00 , G06K9/00 , G06F17/30
摘要： Techniques for repetition detection in media data are provided. Media features of many different types may be extracted from the media data. Query sequences of fingerprints may be selected time intervals that begin at query times. Matched sequences of fingerprints may be determined. A set of offset values may be determined based on the matched sequences of fingerprints. This set of offset values may be further refined into a set of significant time points using a relatively targeted search and comparison method based on the media features of a second type extracted from the media data.

3. 发明申请

WO2009046438A1 MEDIA FINGERPRINTS THAT RELIABLY CORRESPOND TO MEDIA CONTENT 审中-公开
标题翻译：媒体指示与媒体内容相当的指纹
公开(公告)号：WO2009046438A1
公开(公告)日：2009-04-09
申请号：PCT/US2008/078975
申请日：2008-10-06
申请人： DOLBY LABORATORIES LICENSING CORP. , RADHAKRISHNAN, Regunathan , BAUER, Claus
发明人： RADHAKRISHNAN, Regunathan , BAUER, Claus
IPC分类号： G06F17/30 , H04N5/91
CPC分类号： G06T1/0028 , G06F17/30799 , G06K9/00744 , G06K9/4642 , G06T1/005 , G06T2201/0051 , G06T2201/0061 , H04N21/44008
摘要： Quantized energy values are accessed to initially represent a temporally related group of content elements in a media sequence. The values are accessed over a matrix of regions into which the initial representation is partitioned. The initial representation may be downsampled and/or cropped from the content. A basis vector set is estimated in a dimensional space from the values. The initial representation is transformed into a subsequent representation, which is in another dimensional space. The subsequent representation projects the initial representation, based on the basis vectors. The subsequent representation reliably corresponds to the media content portion over a change in a geometric orientation thereof. Repeated for other media content portions of the group, subsequent representations of the first and other portions are averaged or transformed over time. The averaged/transformed values reliably correspond to the content portion over speed changes. The initial representation may include spatial or transform related information.
摘要翻译：量化的能量值被访问以最初表示媒体序列中时间上相关的内容元素组。这些值通过分区初始表示的区域矩阵进行访问。初始表示可以从内容下采样和/或裁剪。在从值的维度空间中估计基矢量集。初始表示被转换成另一个维度空间中的后续表示。随后的表示基于基本向量来投影初始表示。随后的表示在其几何取向的变化上可靠地对应于媒体内容部分。对于组的其他媒体内容部分重复，第一和其他部分的后续表示随时间被平均或变换。平均/变换后的值与速度变化的内容部分可靠地对应。初始表示可以包括空间或变换相关信息。

4. 发明申请

WO2006073032A1 METHOD FOR REFINING TRAINING DATA SET FOR AUDIO CLASSIFIERS AND METHOD FOR CLASSIFYING DATA 审中-公开
标题翻译：用于精简音频分类器的训练数据集的方法和用于分类数据的方法
公开(公告)号：WO2006073032A1
公开(公告)日：2006-07-13
申请号：PCT/JP2005/021925
申请日：2005-11-22
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , OTSUKA, Isao , RADHAKRISHNAN, Regunathan , DIVAKARAN, Ajay
发明人： OTSUKA, Isao , RADHAKRISHNAN, Regunathan , DIVAKARAN, Ajay
IPC分类号： G10L11/00 , G06F15/18
CPC分类号： G06F17/30787 , G10L25/48
摘要： A method refines labeled training data audio classification of multimedia content. A first set of audio classifiers is trained using labeled audio frames of a training data set having labels corresponding to a set of audio features. Each audio frame of the labeled training data set is classified using the first set of audio classifiers to produce a refined training data set. A second set of audio classifiers is obtained using audio frames of the refined training data set, and highlights are extracted from unlabeled audio frames using the second set of audio classifiers.
摘要翻译：一种方法提炼了多媒体内容的标签训练数据音频分类。使用具有对应于一组音频特征的标签的训练数据集的标记音频帧来训练第一组音频分类器。使用第一组音频分类器对标记的训练数据集的每个音频帧进行分类，以产生精细训练数据集。使用精细训练数据集的音频帧获得第二组音频分类器，并且使用第二组音频分类器从未标记的音频帧中提取亮点。

5. 发明申请

WO2010129630A1 STORING AND SEARCHING FINGERPRINTS DERIVED FROM MEDIA CONTENT BASED ON A CLASSIFICATION OF THE MEDIA CONTENT 审中-公开
标题翻译：根据媒体内容的分类存储和搜索从媒体内容中提取的指纹
公开(公告)号：WO2010129630A1
公开(公告)日：2010-11-11
申请号：PCT/US2010/033654
申请日：2010-05-05
申请人： DOLBY LABORATORIES LICENSING CORPORATION , GAO, Tianshi , RADHAKRISHNAN, Regunathan , JIANG, Wenyu , BAUER, Claus
发明人： GAO, Tianshi , RADHAKRISHNAN, Regunathan , JIANG, Wenyu , BAUER, Claus
IPC分类号： G06F17/30
CPC分类号： G06F17/3028 , G06F17/30964 , G06K9/00087 , G06K9/00744 , G06K9/52 , G06K9/6201 , G06K9/6267
摘要： Attributes are identified in media content. A classification value of the media content is computed based on the identified attributes. Thereafter, a fingerprint derived from the media content is stored or searched for based on the classification value of the media content.
摘要翻译：属性在媒体内容中标识。基于所识别的属性来计算媒体内容的分类值。此后，基于媒体内容的分类值来存储或搜索从媒体内容导出的指纹。

6. 发明申请

WO2010080857A2 SCALABLE MEDIA FINGERPRINT EXTRACTION 审中-公开
标题翻译：可扩展介质指纹提取
公开(公告)号：WO2010080857A2
公开(公告)日：2010-07-15
申请号：PCT/US2010/020292
申请日：2010-01-07
申请人： DOLBY LABORATORIES LICENSING CORPORATION , BAUER, Claus , RADHAKRISHNAN, Regunathan , JIANG, Wenyu , DICKINS, Glenn, N.
发明人： BAUER, Claus , RADHAKRISHNAN, Regunathan , JIANG, Wenyu , DICKINS, Glenn, N.
IPC分类号： G06K9/00 , G06K9/62
CPC分类号： G06K9/00744 , G06K9/46 , G06K9/623
摘要： Derivation of a fingerprint includes generating feature matrices based on one or more training images, generating projection matrices based on the feature matrices in a training process, and deriving a fingerprint for one or more images by, at least in part, projecting a feature matrix based on the one or more images onto the projection matrices generated in the training process.
摘要翻译：指纹的推导包括基于一个或多个训练图像生成特征矩阵，基于训练过程中的特征矩阵生成投影矩阵，以及通过至少部分地基于特征矩阵投影来导出一个或多个图像的指纹，在一个或多个图像上，在训练过程中产生的投影矩阵上。

7. 发明申请

WO2010022303A1 CONTENT IDENTIFICATION AND QUALITY MONITORING 审中-公开
标题翻译：内容识别和质量监测
公开(公告)号：WO2010022303A1
公开(公告)日：2010-02-25
申请号：PCT/US2009/054568
申请日：2009-08-21
申请人： DOLBY LABORATORIES LICENSING CORPORATION , RADHAKRISHNAN, Regunathan , RIEDMILLER, Jeffrey, C. , BAUER, Claus , JIANG, Wenyu
发明人： RADHAKRISHNAN, Regunathan , RIEDMILLER, Jeffrey, C. , BAUER, Claus , JIANG, Wenyu
IPC分类号： H04N17/00
CPC分类号： H04N17/004
摘要： Content identification and quality monitoring are provided. The method involves obtaining a first fingerprint derived from a first media content, processing the first media content to generate a second media content, obtaining a second fingerprint derived from the second media content, and comparing the first fingerprint and the second fingerprint to determine one or more of: a similarity between the first fingerprint and the second fingerprint that indicates that the second media content is generated from the first media content or a difference between the first fingerprint and the second fingerprint to identify a quality degradation between the first media content and the second media content.
摘要翻译：提供内容识别和质量监控。该方法包括获得从第一媒体内容导出的第一指纹，处理第一媒体内容以产生第二媒体内容，获得从第二媒体内容导出的第二指纹，以及比较第一指纹和第二指纹以确定一个或多个更多：第一指纹和第二指纹之间的相似性，其指示从第一媒体内容生成第二媒体内容或第一指纹与第二指纹之间的差异，以识别第一媒体内容与第二指纹之间的质量下降第二媒体内容。

8. 发明申请

WO2006022394A2 METHOD FOR IDENTIFYING HIGHLIGHT SEGMENTS IN A VIDEO INCLUDING A SEQUENCE OF FRAMES 审中-公开
标题翻译：用于识别视频中的高亮部分的方法，包括帧的序列
公开(公告)号：WO2006022394A2
公开(公告)日：2006-03-02
申请号：PCT/JP2005015586
申请日：2005-08-22
申请人： MITSUBISHI ELECTRIC CORP , XIONG ZIYOU , RADHAKRISHNAN REGUNATHAN , DIVAKARAN AJAY
发明人： XIONG ZIYOU , RADHAKRISHNAN REGUNATHAN , DIVAKARAN AJAY
IPC分类号： G06F17/30
CPC分类号： G06F17/30787 , G06F17/30802 , G06F17/30843 , G06K9/00711 , G06K9/6293
摘要： A method identifies highlight segments in a video including a sequence of frames. Audio objects are detected to identify frames associated with audio events in the video, and visual objects are detected to identify frames associated with visual events. Selected visual objects are matched with an associated audio object to form an audio-visual object only if the selected visual object matches the associated audio object, the audio-visual object identifying a candidate highlight segment. The candidate highlight segments are further refined, using low level features, to eliminate false highlight segments.
摘要翻译：一种方法识别包括帧序列的视频中的高亮段。检测音频对象以识别与视频中的音频事件相关联的帧，并且检测视觉对象以识别与视觉事件相关联的帧。仅当所选择的视觉对象与相关联的音频对象匹配时，所选择的视觉对象才与相关联的音频对象匹配以形成音频 - 视觉对象，该视听对象识别候选突出显示段。使用低级特征对候选高光部分进一步细化，以消除虚高光部分。

9. 发明申请

WO2012158705A1 ADAPTIVE AUDIO PROCESSING BASED ON FORENSIC DETECTION OF MEDIA PROCESSING HISTORY 审中-公开
标题翻译：基于对媒体处理历史的视觉检测的适应性音频处理
公开(公告)号：WO2012158705A1
公开(公告)日：2012-11-22
申请号：PCT/US2012/037966
申请日：2012-05-15
申请人： DOLBY LABORATORIES LICENSING CORPORATION , RADHAKRISHNAN, Regunathan , BAYRAM, Sevinc , RIEDMILLER, Jeffrey
发明人： RADHAKRISHNAN, Regunathan , BAYRAM, Sevinc , RIEDMILLER, Jeffrey
IPC分类号： G10L19/00
CPC分类号： G10L19/018 , G10L19/008 , G10L25/06 , H04S3/02 , H04S5/005 , H04S2400/01
摘要： A media signal is accessed, which has been generated with one or more first processing operations. The media signal includes one or more sets of artifacts, which respectively result from the one or more processing operations. One or more features are extracted from the accessed media signal. The extracted features each respectively correspond to the one or more artifact sets. Based on the extracted features, a conditional probability score and/or a heuristically based score is computed, which relates to the one or more first processing operations.
摘要翻译：访问已经通过一个或多个第一处理操作生成的媒体信号。媒体信号包括分别由一个或多个处理操作产生的一组或多组伪影。从所访问的媒体信号中提取一个或多个特征。所提取的特征分别对应于一个或多个伪像集。基于提取的特征，计算与一个或多个第一处理操作有关的条件概率得分和/或启发式分数。

10. 发明申请

WO2011044153A1 AUTOMATIC GENERATION OF METADATA FOR AUDIO DOMINANCE EFFECTS 审中-公开
标题翻译：元音的自动生成用于音视频的影响
公开(公告)号：WO2011044153A1
公开(公告)日：2011-04-14
申请号：PCT/US2010/051513
申请日：2010-10-05
申请人： DOLBY LABORATORIES LICENSING CORPORATION , RIEDMILLER, Jeffrey, C. , RADHAKRISHNAN, Regunathan , MUESCH, Hannes
发明人： RIEDMILLER, Jeffrey, C. , RADHAKRISHNAN, Regunathan , MUESCH, Hannes
IPC分类号： G11B27/28 , G11B27/32 , G10L11/06 , G10L19/00 , G11B27/11 , H04N5/60 , G11B27/031 , G11B27/10
CPC分类号： G11B27/11 , G10L19/008 , G10L19/167 , G11B27/031 , G11B27/105 , G11B27/28 , G11B27/322
摘要： Metadata comprising a set of gain values for creating a dominance effect is automatically generated. Automatically generating the metadata includes receiving multiple audio streams and a dominance criterion for at least one of the audio streams. A set of gains is computed for one or more audio streams based on the dominance criterion for the at least one audio stream and metadata is generated with the set of gains.
摘要翻译：包括用于产生优势效果的一组增益值的元数据被自动生成。自动生成元数据包括为至少一个音频流接收多个音频流和优势准则。基于用于至少一个音频流的优势准则为一个或多个音频流计算一组增益，并且利用该组增益生成元数据。

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