-
51.发明授权Media fingerprints that reliably correspond to media content with projection of moment invariants 有权媒体指纹可靠地对应于媒体内容与投影的时刻不变量公开(公告)号：US08891813B2
公开(公告)日：2014-11-18
申请号：US13128967
申请日：2009-11-17
CPC分类号： G06T1/0028 , G06F17/30799 , G06K9/00744 , G06K9/4671 , G06K9/525 , G06T1/005
摘要： A portion of media content is accessed. Components from a first and each subsequent spatial regions of the media content are sampled. Each spatial region has an unsegmented area. Each subsequent spatial region includes those within its area as elements thereof or the spatial regions may partially overlap. The regions may overlap independent of a hierarchical relationship between the regions. A media fingerprint is derived from the components of each of the spatial regions, which reliably corresponds to the media content portion, e.g., over geometric attacks such as rotation.
摘要翻译： 访问媒体内容的一部分。 来自媒体内容的第一和每个后续空间区域的组件被采样。 每个空间区域都有一个未分段的区域。 每个随后的空间区域包括其区域内的元素作为其元素，或者空间区域可以部分重叠。 这些区域可以独立于区域之间的层次关系重叠。 来自每个空间区域的组件的媒体指纹，其可靠地对应于媒体内容部分，例如，几何攻击（例如旋转）。
-
公开(公告)号：US20130246077A1
公开(公告)日：2013-09-19
申请号：US13989256
申请日：2011-12-01
申请人： Jeffrey Riedmiller , Regunathan Radhakrishnan , Marvin Pribadi , Farhad Farahani , Michael Smithers
发明人： Jeffrey Riedmiller , Regunathan Radhakrishnan , Marvin Pribadi , Farhad Farahani , Michael Smithers
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , G10L19/167 , G10L21/00
摘要： Techniques for adaptive processing of media data based on separate data specifying a state of the media data are provided. A device in a media processing chain may determine whether a type of media processing has already been performed on an input version of media data. If so, the device may adapt its processing of the media data to disable performing the type of media processing. If not, the device performs the type of media processing. The device may create a state of the media data specifying the type of media processing. The device may communicate the state of the media data and an output version of the media data to a recipient device in the media processing chain, for the purpose of supporting the recipient device's adaptive processing of the media data.
摘要翻译： 提供了基于指定媒体数据的状态的单独数据对媒体数据进行自适应处理的技术。 媒体处理链中的设备可以确定是否已经在媒体数据的输入版本上执行了媒体处理的类型。 如果是这样，则设备可以调整其对媒体数据的处理以禁止执行媒体处理的类型。 如果没有，则设备执行媒体处理的类型。 设备可以创建指定媒体处理类型的媒体数据的状态。 为了支持接收方设备对媒体数据的自适应处理，设备可以将媒体数据的状态和媒体数据的输出版本传送到媒体处理链中的接收者设备。
-
53.发明授权Deriving video signatures that are insensitive to picture modification and frame-rate conversion 失效派生对图片修改和帧速率转换不敏感的视频签名公开(公告)号：US08488061B2
公开(公告)日：2013-07-16
申请号：US12600466
申请日：2008-05-01
CPC分类号： G11B27/28 , G06F17/30799 , G06K9/00744 , G06T1/0028 , G06T1/005 , G06T2201/0051 , G06T2201/0061 , H04N19/467
摘要： A signature that can be used to identify video content in a series of video frames is generated by first calculating the average and variance of picture elements in a low-resolution composite image that represents a temporal and spatial composite of the video content in the series of frames. The signature is generated by applying a hash function to values derived from the average and variance composite representations. The video content of a signal can be represented by a set of signatures that are generated for multiple series of frames within the signal. A set of signatures can provide reliable identifications despite intentional and unintentional modifications to the content.
摘要翻译： 可以通过首先计算低分辨率合成图像中的图像元素的平均值和方差来生成可用于识别一系列视频帧中的视频内容的签名，该复合图像表示该系列视频内容中的视频内容的时间和空间复合 框架。 通过将散列函数应用于从平均和方差复合表示中导出的值来生成签名。 信号的视频内容可以由为信号内的多个帧系列生成的一组签名来表示。 尽管有意和无意地修改内容，一组签名可以提供可靠的标识。
-
54.发明授权Feature optimization and reliability for audio and video signature generation and detection 有权音频和视频签名生成和检测的特征优化和可靠性公开(公告)号：US08400566B2
公开(公告)日：2013-03-19
申请号：US13059468
申请日：2009-08-17
CPC分类号： H04N21/4341 , G06F17/30799 , G06K9/00221 , G06K9/00744 , G06K9/00758 , H04N5/04 , H04N21/23418 , H04N21/234318 , H04N21/2368 , H04N21/242 , H04N21/4305 , H04N21/4307 , H04N21/4394 , H04N21/44008
摘要： Features are extracted from video and audio content that have a known temporal relationship with one another. The extracted features are used to generate video and audio signatures, which are assembled with an indication of the temporal relationship into a synchronization signature construct. the construct may be used to calculate synchronization errors between video and audio content received at a remote destination. Measures of confidence are generated at the remote destination to optimize processing and to provide an indication of reliability of the calculated synchronization error.
摘要翻译： 从具有彼此已知的时间关系的视频和音频内容中提取特征。 所提取的特征被用于产生视频和音频签名，这些签名与时间关系的指示组合成同步签名构造。 该构造可以用于计算在远程目的地处接收的视频和音频内容之间的同步错误。 在远程目的地产生置信度度以优化处理并提供计算出的同步误差的可靠性的指示。
-
55.发明申请Extracting Features of Audio Signal Content to Provide Reliable Identification of the Signals 有权提取音频信号内容的特点，提供信号的可靠识别公开(公告)号：US20130064416A1
公开(公告)日：2013-03-14
申请号：US13599992
申请日：2012-08-30
申请人： Regunathan Radhakrishnan , Claus Bauer , Kent Bennett Terry , Brian David Link , Hyung-Suk Kim , Eric Gsell
发明人： Regunathan Radhakrishnan , Claus Bauer , Kent Bennett Terry , Brian David Link , Hyung-Suk Kim , Eric Gsell
IPC分类号： G06K9/00
CPC分类号： G06T1/005 , G06F17/30743 , G06F17/30787 , G06F17/30799 , G06K9/00744 , G06K9/00758 , G06T1/0028 , G10L25/18 , G10L25/54 , G11B2020/10537
摘要： Signatures that can be used to identify video and audio content are generated from the content by generating measures of dissimilarity between features of corresponding groups of pixels in frames of video content and by generating low-resolution time-frequency representations of audio segments. The signatures are generated by applying a hash function to intermediate values derived from the measures of dissimilarity and to the low-resolution time-frequency representations. The generated signatures may be used in a variety of applications such as restoring synchronization between video and audio content streams and identifying copies of original video and audio content. The generated signatures can provide reliable identifications despite intentional and unintentional modifications to the content.
摘要翻译： 可以用于识别视频和音频内容的签名通过在视频内容的帧中产生相应的像素组的特征之间的不相似度量度和通过生成音频段的低分辨率时间频率表示来从内容产生。 通过将散列函数应用于从不相似性的度量导出的中间值和低分辨率时间频率表示来生成签名。 生成的签名可以用于各种应用中，例如恢复视频和音频内容流之间的同步，并识别原始视频和音频内容的副本。 生成的签名可以提供可靠的标识，尽管有意和无意的修改内容。
-
公开(公告)号：US08316011B2
公开(公告)日：2012-11-20
申请号：US13173462
申请日：2011-06-30
CPC分类号： G06F17/30023
摘要： A value is computed for a feature in an instance of query content and compared to a threshold value. Based on the comparison, first and second bits in a hash value, which is derived from the query content feature, are determined. Conditional probability values are computed for the likelihood that quantized values of the first and the second bits equal corresponding quantized bit values of a target or reference feature value. The conditional probabilities are compared and a relative strength determined for the first and second bits, which directly corresponds to the conditional probability. The bit with the lowest bit strength is selected as the weakbit. The value of the weakbit is toggled to generate a variation of the query hash value. The query may be extended using the query hash value variation.
摘要翻译： 为查询内容的实例中的要素计算一个值，并与阈值进行比较。 基于比较，确定从查询内容特征导出的哈希值中的第一和第二比特。 对于第一和第二比特的量化值等于目标或参考特征值的相应量化比特值的可能性，计算条件概率值。 比较条件概率，并确定第一和第二位的相对强度，其直接对应于条件概率。 选择具有最低位强度的位作为弱位。 切换弱点的值以生成查询哈希值的变体。 可以使用查询哈希值变化来扩展查询。
-
57.发明申请Alignment and Re-Association of Metadata for Media Streams Within a Computing Device 有权计算设备内媒体流元数据的对齐和重新关联公开(公告)号：US20120215329A1
公开(公告)日：2012-08-23
申请号：US13402718
申请日：2012-02-22
IPC分类号： G06F17/00
CPC分类号： G06F17/30743 , G06F3/16 , G06F17/30017 , G10L19/167 , H03G3/3005
摘要： Techniques for re-associating dynamic metadata with media data are provided. A media processing system creates, with a first media processing stage, binding information comprising dynamic metadata and a time relationship between the dynamic metadata and media data. The binding information may be derived from the media data. While the first media processing stage delivers the media data to a second media processing stage in a first data path, the first media processing stage passes the binding information to the second media processing stage in a second data path. The media processing system re-associates, with the second media processing stage, the dynamic metadata and the media data using the binding information.
摘要翻译： 提供了将动态元数据与媒体数据重新关联的技术。 媒体处理系统在第一媒体处理阶段创建包含动态元数据和动态元数据与媒体数据之间的时间关系的绑定信息。 可以从媒体数据导出绑定信息。 当第一媒体处理阶段将媒体数据传送到第一数据路径中的第二媒体处理阶段时，第一媒体处理阶段将绑定信息传递到第二数据路径中的第二媒体处理阶段。 媒体处理系统使用绑定信息在第二媒体处理阶段重新关联动态元数据和媒体数据。
-
公开(公告)号：US20110188704A1
公开(公告)日：2011-08-04
申请号：US13059839
申请日：2009-08-21
IPC分类号： G06K9/00
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。
-
公开(公告)号：US20110026761A1
公开(公告)日：2011-02-03
申请号：US12681598
申请日：2008-10-06
IPC分类号： G06K9/00
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。
-
公开(公告)号：US20110010168A1
公开(公告)日：2011-01-13
申请号：US12921752
申请日：2009-03-12
IPC分类号： G10L19/04
CPC分类号： G10L19/18 , G10L19/093 , G10L19/12 , G10L2019/0004 , G10L2019/0005
摘要： The invention relates to the coding of audio signals that may include both speech-like and non-speech-like signal components. It describes methods and apparatus for code excited linear prediction (CELP) audio encoding and decoding that employ linear predictive coding (LPC) synthesis filters controlled by LPC parameters, a plurality of codebooks each having codevectors, at least one codebook providing an excitation more appropriate for non-speech-like signals and at least one codebook providing an excitation more appropriate for speech-like signals, and a plurality of gain factors, each associated with a codebook. The encoding methods and apparatus select from the codebooks codevectors and/or associated gain factors by minimizing a measure of the difference between the audio signal and a reconstruction of the audio signal derived from the codebook excitations. The decoding methods and apparatus generate a reconstructed output signal from the LPC parameters, codevectors, and gain factors.
摘要翻译： 本发明涉及可以包括语音类和非语音类信号分量的音频信号的编码。 它描述了采用由LPC参数控制的线性预测编码（LPC）合成滤波器的码激励线性预测（CELP）音频编码和解码的方法和装置，每个具有码矢量的多个码本，提供更适合于 非语音类信号和至少一个提供更适合于类似语音的信号的激励的码本，以及多个增益因子，每个与码本相关联。 编码方法和装置通过最小化音频信号与从码本激励导出的音频信号的重建之间的差异的度量来从码本代码矢量和/或相关联的增益因子中选择。 解码方法和装置从LPC参数，代码矢量和增益因子产生重构的输出信号。
-
-
-
-
-
-
-
-
-
搜索结果
61 条记录 (耗时 0.034 秒)