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    Methods, systems, and media for transforming fingerprints to detect unauthorized media content items
    2.
    发明授权
    Methods, systems, and media for transforming fingerprints to detect unauthorized media content items 有权

    公开(公告)号：US09936230B1

    公开(公告)日：2018-04-03

    申请号：US15591470

    申请日：2017-05-10

    申请人： Google Inc.

    发明人： Johan Granström

    IPC分类号： H04N7/16 ,  H04N21/234 ,  H04N21/254 ,  H04N21/835

    CPC分类号： H04N21/2541 ,  G06F17/30784 ,  G06F17/30799

    摘要： Methods, systems, and media for transforming fingerprints to detect unauthorized media content items are provided. The method comprises: receiving criteria relating to an application of a circumvention technique to one or more video content items, wherein the criteria includes abuse criteria that describes the circumvention technique and a transform for use with the one or more video content items in which the circumvention technique was applied; generating an abuse query that includes at least a portion of the abuse criteria that describes the circumvention technique; determining from a plurality of video content items, a subset of video content items responsive to the abuse query; applying, for each video content item in the subset of video content items, the transform to each video content item to obtain a transformed video content item; generating, for each transformed video content item, a fingerprint that represents the transformed video content item; and comparing the fingerprint of the transformed video content item to a plurality of fingerprints associated with reference video content items to determine whether the video content item corresponding to the transformed video content item matches one of the reference video content items.

    INFORMATION PUSHING METHOD AND SYSTEM
    3.
    发明申请
    INFORMATION PUSHING METHOD AND SYSTEM 审中-公开

    公开(公告)号：US20180020069A1

    公开(公告)日：2018-01-18

    申请号：US15536129

    申请日：2014-12-19

    申请人： SHENZHEN TCL DIGITAL TECHNOLOGY LTD.

    发明人： Youzhao WU

    IPC分类号： H04L29/08 ,  G06F17/30 ,  G06T5/40 ,  G06K9/46 ,  G06K9/62

    CPC分类号： H04L67/26 ,  G06F17/30799 ,  G06F17/30802 ,  G06F17/3082 ,  G06F17/30858 ,  G06K9/4647 ,  G06K9/4661 ,  G06K9/6212 ,  G06T5/40 ,  G06T2207/10016 ,  H04L67/10

    摘要： A method for pushing information is disclosed by which a client acquires the statistical characteristic information of a current video frame in real time during video playback on the client; the client then searches a first mapping relationship table consisting of mapping relations between the statistical characteristic information and index values that is established by the client for the index value that matches the acquired statistical characteristic information, and sends the index value thus found to a cloud server; the cloud server searches a second mapping relationship table consisting of mapping relations between the index values and push information that is established by the cloud server for the push information that corresponds to the index value; and finally the client receives and plays or displays the push information. There is also provided a system for pushing information.

    Method for extracting features from a flow of digital video frames, and corresponding system and computer program product
    7.
    发明授权
    Method for extracting features from a flow of digital video frames, and corresponding system and computer program product 有权
    从数字视频帧流中提取特征的方法，以及相应的系统和计算机程序产品

    公开(公告)号：US09571398B2

    公开(公告)日：2017-02-14

    申请号：US14080080

    申请日：2013-11-14

    申请人： STMicroelectronics S.R.L.

    发明人： Danilo Pietro Pau

    IPC分类号： H04L12/801 ,  H04N19/115 ,  H04N19/164 ,  H04N19/17 ,  G06K9/46 ,  G06F17/30

    CPC分类号： H04N19/115 ,  G06F17/30799 ,  G06K9/4671 ,  H04L47/12 ,  H04N19/146 ,  H04N19/164 ,  H04N19/17 ,  H04N19/172 ,  H04N19/196

    摘要： In an embodiment, digital video frames in a flow are subjected to a method of extraction of features including the operations of: extracting from the video frames respective sequences of pairs of keypoints/descriptors limiting to a threshold value the number of pairs extracted for each frame; sending the sequences extracted from an extractor module to a server for processing with a bitrate value variable in time; receiving the aforesaid bitrate value variable in time at the extractor as target bitrate for extraction; and limiting the number of pairs extracted by the extractor to a threshold value variable in time as a function of the target bitrate.

    摘要翻译： 在一个实施例中，流程中的数字视频帧经受提取特征的方法，包括以下操作：从视频帧中提取相应的关键点/描述符序列，限制阈值，为每个帧提取的对数 ; 将从提取器模块提取的序列发送到服务器，以便在时间上以比特率值变量进行处理; 以提取器的时间接收上述比特率值变量作为提取的目标比特率; 并且将提取器提取的对数量作为目标比特率的函数在时间上限制为阈值变量。

    OPTIMIZING MEDIA FINGERPRINT RETENTION TO IMPROVE SYSTEM RESOURCE UTILIZATION
    8.
    发明申请
    OPTIMIZING MEDIA FINGERPRINT RETENTION TO IMPROVE SYSTEM RESOURCE UTILIZATION 审中-公开
    优化媒体指纹保留，以提高系统资源利用率

    公开(公告)号：US20170019716A1

    公开(公告)日：2017-01-19

    申请号：US15210730

    申请日：2016-07-14

    申请人： Vizio Inscape Technologies, LLC

    发明人： Zeev Neumeier ,  Michael Collette

    IPC分类号： H04N21/61 ,  H04N21/845 ,  H04N21/234

    CPC分类号： H04N21/6125 ,  G06F17/30799 ,  G06K9/46 ,  G06K9/6202 ,  H04N21/23418 ,  H04N21/44008 ,  H04N21/845

    摘要： Provided are devices, computer-program products, and methods for removing redundant data associated with frames. For example, a method can include receiving an initial frame, determining initial cue data for the initial frame, and sending the initial cue data to a server. The method can further include receiving a new frame and determining new cue data for the new frame. The method can further include identifying a pixel value range. The method can further include determining a pixel value difference between an initial pixel data sample and a new pixel data sample. The method can further include determining the pixel value difference is within the pixel value range and updating the new cue data by removing the new pixel data sample from the new cue data when the pixel value difference is within the pixel value range. The method can further include sending the updated new cue data to the server.

    摘要翻译： 提供了用于去除与帧相关联的冗余数据的设备，计算机程序产品和方法。 例如，一种方法可以包括接收初始帧，确定初始帧的初始提示数据，以及将初始提示数据发送到服务器。 该方法还可以包括接收新的帧并且确定新的帧的新的提示数据。 该方法还可以包括识别像素值范围。 该方法还可以包括确定初始像素数据样本和新像素数据样本之间的像素值差。 该方法可以进一步包括：当像素值差在像素值范围内时，通过从新提示数据中移除新的像素数据样本，确定像素值差异在像素值范围内并且更新新的提示数据。 该方法还可以包括将更新的新提示数据发送到服务器。

    Digital video content fingerprinting based on scale invariant interest region detection with an array of anisotropic filters
    10.
    发明授权
    Digital video content fingerprinting based on scale invariant interest region detection with an array of anisotropic filters 有权
    基于尺度不变兴趣区域检测的数字视频内容指纹与各向异性过滤器阵列

    公开(公告)号：US09396393B2

    公开(公告)日：2016-07-19

    申请号：US14298261

    申请日：2014-06-06

    申请人： Mihailo M. Stojancic ,  Prashant Ramanathan ,  Peter Wendt ,  Jose Pio Pereira

    发明人： Mihailo M. Stojancic ,  Prashant Ramanathan ,  Peter Wendt ,  Jose Pio Pereira

    IPC分类号： G06K9/00 ,  G06K9/46 ,  G06F17/30 ,  H04N5/14

    CPC分类号： G06K9/00503 ,  G06F17/30799 ,  G06F17/30805 ,  G06F17/30814 ,  G06K9/0053 ,  G06K9/00744 ,  G06K9/4676 ,  H04N5/14

    摘要： Video sequence processing is described with various filtering rules applied to extract dominant features for content based video sequence identification. Active regions are determined in video frames of a video sequence. Video frames are selected in response to temporal statistical characteristics of the determined active regions. A two pass analysis is used to detect a set of initial interest points and interest regions in the selected video frames to reduce the effective area of images that are refined by complex filters that provide accurate region characterizations resistant to image distortion for identification of the video frames in the video sequence. Extracted features and descriptors are robust with respect to image scaling, aspect ratio change, rotation, camera viewpoint change, illumination and contrast change, video compression/decompression artifacts and noise. Compact, representative signatures are generated for video sequences to provide effective query video matching and retrieval in a large video database.

    摘要翻译： 使用应用于提取用于基于内容的视频序列识别的主要特征的各种滤波规则来描述视频序列处理。 在视频序列的视频帧中确定有效区域。 响应于所确定的活动区域的时间统计特性来选择视频帧。 双通道分析用于检测所选择的视频帧中的一组初始兴趣点和感兴趣区域，以减少由复杂滤波器精化的图像的有效面积，该复杂滤波器提供抵抗图像失真的精确区域表征以识别视频帧 在视频序列中。 提取的特征和描述符在图像缩放，宽高比变化，旋转，相机视点改变，照明和对比度变化，视频压缩/解压缩伪像和噪声方面是稳健的。 为视频序列生成紧凑的代表性签名，以便在大型视频数据库中提供有效的查询视频匹配和检索。