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    Zero-watermarking registration and detection method for HEVC video streaming against requantization transcoding
    4.
    发明授权
    Zero-watermarking registration and detection method for HEVC video streaming against requantization transcoding 有权

    公开(公告)号：US09947065B2

    公开(公告)日：2018-04-17

    申请号：US15045256

    申请日：2016-02-17

    Applicant: Ningbo University

    Inventor： Gangyi Jiang ,  Jing Wang ,  Mei Yu ,  Fen Chen

    IPC: G06K9/00 ,  G06T1/00 ,  H04N19/467 ,  H04N19/40

    CPC classification number: G06T1/0028 ,  G06T1/0057 ,  G06T2201/0053 ,  H04N19/40 ,  H04N19/467

    Abstract: A zero-watermarking registration and detection method for HEVC video streaming against requantization transcoding is provided. To increase an attack-resistance of a registration watermarking, the registration method firstly processes depth values corresponding to respective brightness blocks in a target video streaming with a depth binarization during constructing registration watermarking information through depth features, because the depth binarization well reflects a robustness of the registration watermarking. A first watermarking information matrix including a part of the depth values after the depth binarization is encrypted with a random matrix, so as to increase a safety of the registration watermarking. The registration method directly generates zero-watermarking through the depth features of the video streaming without modifying original carrier information and affecting a watermarking transparency. Meanwhile, the registration method has a strong robustness against attacks, such as the requantization transcoding of quantization parameters within a certain range of variation and common signal processing.

    Transactional video marking system
    6.
    发明授权
    Transactional video marking system 有权
    事务视频标记系统

    公开(公告)号：US09262793B2

    公开(公告)日：2016-02-16

    申请号：US14214366

    申请日：2014-03-14

    Applicant: Verance Corporation

    Inventor： Jian Zhao ,  Guillaume Mercier

    IPC: G06K9/00 ,  G06T1/00

    CPC classification number: G06T1/0021 ,  G06T1/0028 ,  G06T1/0071 ,  G06T2201/0051 ,  G06T2201/0053 ,  G06T2201/0202

    Abstract: Methods, devices, systems and computer program products facilitate embedding and extraction of transactional watermarks into and from a video content. One such method includes selecting a first number of frames from a video content and performing temporal and a spatial psychovisual analysis on the selected frames. For each selected frame, at least one area for insertion of watermarks is identified. A first and a second watermark symbol is embedded separately in the identified area(s), and the embedded frames are re-encoded to obtain a first and a second alternative data. An inserter manifest is formed that includes the first and the second alternative data to enable insertion of a watermark into the video content by selecting one or the other of the first and second alternative data for insertion into the video content.

    Abstract translation: 方法，设备，系统和计算机程序产品有助于将事务水印嵌入和提取到视频内容中。 一种这样的方法包括从视频内容中选择第一数量的帧，并对所选择的帧执行时间和空间心理视觉分析。 对于每个所选择的帧，识别用于插入水印的至少一个区域。 将第一和第二水印符号分别嵌入所识别的区域中，并且嵌入的帧被重新编码以获得第一和第二替代数据。 形成插入器清单，其包括第一和第二备选数据，以通过选择用于插入到视频内容中的第一和第二备选数据中的一个或另一个来使水印插入到视频内容中。

    Content item identifier
    7.
    发明授权
    Content item identifier 有权
    内容项标识符

    公开(公告)号：US08831272B2

    公开(公告)日：2014-09-09

    申请号：US13124176

    申请日：2009-10-07

    Applicant: Franciscus L.A.J. Kamperman

    Inventor： Franciscus L.A.J. Kamperman

    IPC: G06K9/00 ,  G06T1/00 ,  G06F21/10 ,  H04L9/32 ,  H04N21/8358

    CPC classification number: G06T1/0028 ,  G06F21/10 ,  G06F2221/0737 ,  G06T2201/0052 ,  G06T2201/0053 ,  H04L9/3247 ,  H04L2209/603 ,  H04L2209/608 ,  H04N21/8358

    Abstract: A system (50) is used for identifying a content item. The system (50) receives a received first identifier (101) of the content item, the received first identifier being based on at least part of a baseband level representation of the content item; a received second identifier (102) of the content item, the received second identifier being based on at least part of an encoded representation (103) of the content item; and the at least part of the encoded representation (103) of the content item. The system comprises a second identifier generator (53) for generating a generated second identifier based on the at least part of the encoded representation (103) of the content item; and a validation unit (54) for validating the received first identifier as a valid first identifier of the content item if the generated second identifier matches the received second identifier.

    Abstract translation: 系统（50）用于识别内容项。 系统（50）接收所接收的内容项的第一标识符（101），所接收的第一标识符基于内容项的基带级表示的至少一部分; 所接收的第二标识符（102），所接收的第二标识符基于所述内容项的编码表示（103）的至少一部分; 以及内容项的编码表示（103）的至少一部分。 该系统包括第二标识符生成器（53），用于基于内容项的编码表示（103）的至少一部分生成生成的第二标识符; 以及验证单元（54），用于如果生成的第二标识符与接收到的第二标识符匹配，则将接收到的第一标识符验证为内容项的有效第一标识符。

    CORRELATION-BASED SYSTEM FOR WATERMARKING CONTINUOUS DIGITAL MEDIA
    9.
    发明申请
    CORRELATION-BASED SYSTEM FOR WATERMARKING CONTINUOUS DIGITAL MEDIA 审中-公开
    用于水印连续数字媒体的基于关联的系统

    公开(公告)号：US20130343725A1

    公开(公告)日：2013-12-26

    申请号：US13920721

    申请日：2013-06-18

    Applicant: LAWRENCE N. GINSBERG

    Inventor： SHIEN-TAI PAN ,  VICTOR KAI-CHIEH LIANG ,  YI LI ,  BING WANG ,  MAURICE CHOW ,  HOAI LE ,  RICHARD THAI

    IPC: H04N9/80

    CPC classification number: H04N9/80 ,  G06T1/0035 ,  G06T1/0085 ,  G06T2200/28 ,  G06T2201/0053 ,  G10L19/018 ,  H04N7/1675 ,  H04N7/17318 ,  H04N21/4223 ,  H04N21/472 ,  H04N21/8106 ,  H04N21/8358

    Abstract: A correlation-based system for watermarking continuous digital media at the system application level. It is a post-compression process for watermarking where no a priori knowledge of the underlying compression algorithm is required. Per each compressed media frame, a current unique digital signature is generated based on the data from the current compressed frame plus the digital signature that has been previously generated. The signature thus generated is then used in conjunction with the next compressed frame to generate the next unique digital signature. All digital signatures are correlated according to the above process until a “reset” signal is issued. A new chain of correlated digital signatures is produced by the system with a pre-determined initial signature.

    Abstract translation: 一种基于相关的系统，用于在系统应用级别对连续数字媒体进行水印。 它是用于水印的后压缩过程，其中不需要基础压缩算法的先验知识。 根据每个压缩媒体帧，基于来自当前压缩帧的数据加上先前生成的数字签名生成当前唯一的数字签名。 这样生成的签名然后与下一个压缩帧一起使用，以生成下一个独特的数字签名。 所有数字签名根据上述过程相关，直到发出“复位”信号。 相关数字签名的新链由系统以预定的初始签名生成。

    Modifying a coded bitstream
    10.
    发明授权
    Modifying a coded bitstream 有权
    修改编码比特流

    公开(公告)号：US08588459B2

    公开(公告)日：2013-11-19

    申请号：US12451551

    申请日：2008-06-13

    Applicant: Jeffrey Adam Bloom ,  Dekun Zou

    Inventor： Jeffrey Adam Bloom ,  Dekun Zou

    IPC: G06K9/00

    CPC classification number: G06T1/0035 ,  G06T2201/0053 ,  H04N19/13 ,  H04N19/467 ,  H04N19/48 ,  H04N19/61 ,  H04N19/85 ,  H04N19/93 ,  H04N21/23892 ,  H04N21/8358

    Abstract: Various implementations are provided for, for example, determining watermarking data, performing the watermarking, and processing watermarked data. At least one implementation watermarks AVC bitstream that uses CAVLC entropy coding. The watermarking data may be determined in a pre-processing stage and stored for later use in watermark a bitstream. One method accesses variable-length encoded data including an encoding of information identifying an actual reference used to predictively encode an image. The encoding of the information has a particular value. The method determines an alternative value that is different from the particular value, such that the alternative value is an encoding of alternative information that identifies a different reference from the actual reference. The alternative value is for use in watermarking the variable-length encoded data.

    Abstract translation: 提供了各种实施例，例如，确定水印数据，执行水印和处理水印数据。 至少一个实现水印使用CAVLC熵编码的AVC比特流。 可以在预处理阶段中确定水印数据，并将其存储以供稍后在水印中使用比特流。 一种方法访问可变长度编码数据，包括识别用于预测编码图像的实际参考的信息的编码。 信息的编码具有特定的价值。 该方法确定与特定值不同的替代值，使得替代值是识别与实际参考的不同参考的替代信息的编码。 替代值用于对可变长度编码数据进行水印处理。

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